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=head1 NAME

ranger - visual file manager




=head1 SYNOPSIS

B<ranger> [B<--help>] [B<--version>] [B<--debug>] [B<--clean>]
[B<--list-unused-keys>] [B<--fail-unless-cd>] [B<--choosedir>=I<targetfile>]
[B<--choosefile>=I<targetfile>] [B<--copy-config>=I<file>] [B<--mode>=I<mode>]
[B<--flags>=I<flags>] [I<path/filename>]




=head1 DESCRIPTION

ranger is a console file manager with VI key bindings.  It provides a
minimalistic and nice curses interface with a view on the directory hierarchy.
The secondary task of ranger is to figure out which program you want to use to
open your files with.

This manual mainly contains information on the usage of ranger.  Refer to the
F<README> for install instructions and to F<doc/HACKING> for development
specific information.  For configuration, check the sample files that ranger
created in your F<~/.config/ranger> directory.

Inside ranger, you can press I<1?> for a list of key bindings, I<2?> for a list
of commands and I<3?> for a list of settings.




=head1 OPTIONS

=over 14

=item B<-d>, B<--debug>

Activate the debug mode: Whenever an error occurs, ranger will exit and print a
full traceback.  The default behavior is to merely print the name of the
exception in the statusbar/log and try to keep running.

=item B<-c>, B<--clean>

Activate the clean mode:  ranger will not access or create any configuration
files nor will it leave any traces on your system.  This is useful when your
configuration is broken, when you want to avoid clutter, etc.

=item B<--choosefile>=I<targetfile>

Allows you to pick a file with ranger.  This changes the behavior so that when
you open a file, ranger will exit and write the name of that file into
I<targetfile>.

=item B<--choosedir>=I<targetfile>

Allows you to pick a directory with ranger.  When you exit ranger, it will
write the last visited directory into I<targetfile>.

=item B<--copy-config>=I<file>

Create copies of the default configuration files in your local configuration
directory.  Existing ones will not be overwritten.  Possible values: I<all>,
I<apps>, I<commands>, I<keys>, I<options>, I<scope>.

=item B<--list-unused-keys>

List common keys which are not bound to any action in the "browser" context.
This list is not complete, you can bind any key that is supported by curses:
use the key code returned by C<getch()>.

=item B<--fail-unless-cd>

Return the exit code 1 if ranger is used to run a file instead of used for file
browsing. (For example, "ranger --fail-unless-cd test.txt" returns 1.)

=item B<-m> I<n>, B<--mode>=I<n>

When a filename is supplied, run it in mode I<n>.  This has no effect unless
the execution of this file type is explicitly handled in the configuration.

=item B<-f> I<flags>, B<--flags>=I<flags>

When a filename is supplied, run it with the given I<flags> to modify
behavior.  The execution of this file type is explicitly handled in the
configuration.

=item B<--version>

Print the version and exit.

=item B<-h>, B<--help>

Print a list of options and exit.

=back




=head1 CONCEPTS

=head2 TAGS

Tags are single characters which are displayed left of a filename.  You can use
tags however you want.  Press "t" to toggle tags and "T" to remove any tags of
the selection. The default tag is an Asterisk ("*"), but you can use any tag by
typing I<"<tagnameE<gt>>.

=head2 PREVIEWS

By default, only text files are previewed, but you can enable external preview
scripts by setting the option C<use_preview_script> and C<preview_files> to True.

This default script is F<~/.config/ranger/scope.sh>. It contains more
documentation and calls to the programs I<lynx> and I<elinks> for html,
I<highlight> for text/code, I<img2txt> for images, I<atool> for archives,
I<pdftotext> for PDFs and I<mediainfo> for video and audio files.

Install these programs (just the ones you need) and scope.sh will automatically
use them.

=head2 SELECTION

The I<selection> is defined as "All marked files IF THERE ARE ANY, otherwise
the current file."  Be aware of this when using the :delete command, which
deletes all files in the selection.

You can mark files by pressing <Space>, v, etc.  A yellow B<Mrk> symbol at the
bottom right indicates that there are marked files in this directory.

=head2 MACROS

Macros can be used in commands to abbreviate things.

 %f   the highlighted file
 %d   the path of the current directory
 %s   the selected files in the current directory.
 %t   all tagged files in the current directory
 %c   the full paths of the currently copied/cut files

The macros %f, %d and %s also have upper case variants, %F, %D and %S,
which refer to the next tab.  To refer to specific tabs, add a number in
between.  (%7s = selection of the seventh tab.)

%c is the only macro which ranges out of the current directory. So you may
"abuse" the copying function for other purposes, like diffing two files which
are in different directories:

 Yank the file A (type yy), move to the file B, then type
 @diff %c %f

Macros for file paths are generally shell-escaped so they can be used in the
:shell command.

=head2 BOOKMARKS

Type B<m<keyE<gt>> to bookmark the current directory. You can re-enter this
directory by typing B<`<keyE<gt>>. <key> can be any letter or digit.  Unlike vim,
both lowercase and uppercase bookmarks are persistent.

Each time you jump to a bookmark, the special bookmark at key ` will be set
to the last directory. So typing "``" gets you back to where you were before.

Bookmarks are selectable when tabbing in the :cd command.

Note: The bookmarks ' (Apostrophe) and ` (Backtick) are the same.

=head2 FLAGS

Flags give you a way to modify the behavior of the spawned process.  They are
used in the commands :open_with (key "r") and :shell (key "!").

 s   Silent mode.  Output will be discarded.
 d   Detach the process.  (Run in background)
 p   Redirect output to the pager
 w   Wait for an Enter-press when the process is done
 c   Run the current file only, instead of the selection

By default, all the flags are off unless specified otherwise in the F<apps.py>
configuration file.  You can specify as many flags as you want.  An uppercase
flag negates the effect: "ddcccDs" is equivalent to "cs".

Examples: C<:open_with p> will pipe the output of that process into
the pager.  C<:shell -w df> will run "df" and wait for you to press Enter before
switching back to ranger.

=head2 MODES

By specifying a mode (a positive integer), you can tell ranger what to do with
a file when running it. You can specify which mode to use by typing <mode>l or
<mode><Enter> or :open_with <mode>.  The default mode is 0.

Examples: C<l> (mode zero) to list the contents of an archive, C<1l> (mode one)
to extract an archive.  See the F<apps.py> configuration file for all programs
and modes.




=head1 KEY BINDINGS

Key bindings are defined in the file F<ranger/defaults/rc.conf>.  Check this
file for a list of all key bindings.  You can copy it to your local
configuration directory with the --copy-config=rc option.

Many key bindings take an additional numeric argument.  Type I<5j> to move
down 5 lines, I<2l> to open a file in mode 2, I<10<SpaceE<gt>> to mark 10 files.

This list contains the most useful bindings:

=head2 MAIN BINDINGS

=over 14

=item h, j, k, l

Move left, down, up or right

=item ^D or J, ^U or K

Move a half page down, up

=item H, L

Move back and forward in the history

=item gg

Move to the top

=item G

Move to the bottom

=item ^R

Reload everything

=item ^L

Redraw the screen

=item S

Open a shell in the current directory

=item ?

Opens this man page

=item yy

Yank the selection to the "copy" buffer and mark them as to be copied

=item dd

Cut the selection to the "copy" buffer and mark them as to be moved

=item pp

Paste the files from the "copy" buffer here (by moving or copying, depending on
how they are marked.) By default, this will not overwrite existing files.  To
overwrite them, use I<po>.

=item mI<X>

Create a bookmark with the name I<X>

=item `I<X>

Move to the bookmark with the name I<X>

=item n, N

Find the next file.  By default, this gets you to the newest file in the
directory, but if you search something using the keys /, cm, ct, ..., it will
get you to the next found entry.

=item N

Find the previous file.

=item oI<X>

Change the sort method (like in mutt)

=item zI<X>

Change settings.  See the settings section for a list of settings and their
hotkey.

=item f

Quickly navigate by entering a part of the filename.

=item Space

Mark a file.

=item v

Toggle the mark-status of all files, unmark all files.

=item V, uv

Unmark all files

=item /

Search for files in the current directory.

=item :

Open the console.


=item Alt-I<N>

Open a tab. N has to be a number from 0 to 9. If the tab doesn't exist yet, it
will be created.

=item gn, ^N

Create a new tab.

=item gt, gT

Go to the next or previous tab. You can also use TAB and SHIFT+TAB instead.

=item gc, ^W

Close the current tab.  The last tab cannot be closed this way.

=back

=head2 MIDNIGHT COMMANDER-LIKE BINDINGS

=over 14

=item <F1>

Display Help.

=item <F3>

Display the file.

=item <F4>

Edit the file.

=item <F5>

Copy the file.

=item <F6>

Cut the file.

=item <F7>

Open the console with ":mkdir ".

=item <F8>

Prompt for deletion of the selected files.

=item <F10>

Exit ranger.

=back

=head2 READLINE-LIKE BINDINGS IN THE CONSOLE

=over 14

=item ^B, ^F

Move left and right (B for back, F for forward)

=item ^P, ^N

Move up and down (P for previous, N for Next)

=item ^A, ^E

Move to the start or to the end

=item ^D

Delete the current character.

=item ^H

Backspace.

=back


=head1 MOUSE BUTTONS

=over

=item Left Mouse Button

Click on something and you'll move there.  To run a file, "enter" it, like a
directory, by clicking on the preview.

=item Right Mouse Button

Enter a directory or run a file.

=item Scroll Wheel

Scrolls up or down.  You can point at the column of the parent directory to
switch directories.

=back




=head1 SETTINGS

This section lists all built-in settings of ranger.  The valid types for the
value are in [brackets].  The hotkey to toggle the setting is in <brokets>, if
a hotkey exists.

Settings can be changed in the file F<~/.config/ranger/options.py> or on the
fly with the command B<:set option value>.  Examples:
 :set column_ratios (1,2,3)
 :set show_hidden=True

=over

=item autosave_bookmarks [bool]

Save bookmarks (used with mX and `X) instantly?  This helps to synchronize
bookmarks between multiple ranger instances but leads to *slight* performance
loss.  When false, bookmarks are saved when ranger is exited.

=item collapse_preview [bool] <zc>

When no preview is visible, should the last column be squeezed to make use of
the whitespace?

=item colorscheme_overlay [function, None]

An overlay function for colorschemes.  See the default options.py for an
explanation and an example.

=item colorscheme [string]

Which colorscheme to use?  These colorschemes are available by default:
B<default>, B<default88>, B<texas>, B<jungle>, B<snow>. Snow is monochrome,
texas and default88 use 88 colors.

=item column_ratios [tuple, list]

How many columns are there, and what are their relative widths?  For example, a
value of (1, 1, 1) would mean 3 even sized columns. (1, 1, 1, 1, 4) means 5 columns
with the preview column being as large as the other columns combined.

=item dirname_in_tabs [bool]

Display the directory name in tabs?

=item display_size_in_main_column [bool]

Display the file size in the main column?

=item display_size_in_status_bar [bool]

Display the file size in the status bar?

=item display_tags_in_all_columns [bool]

Display tags in all columns?

=item draw_bookmark_borders [bool]

Draw borders around the bookmark window?

=item draw_borders [bool]

Draw borders around columns?

=item flushinput [bool] <zi>

Flush the input after each key hit?  One advantage is that when scrolling down
with "j", ranger stops scrolling instantly when you release the key.  One
disadvantage is that when you type commands blindly, some keys might get lost.

=item hidden_filter [regexp]

A regular expression pattern for files which should be hidden.

=item max_console_history_size [integer, None]

How many console commands should be kept in history?

=item max_history_size [integer, None]

How many directory changes should be kept in history?

=item mouse_enabled [bool] <zm>

Enable mouse input?

=item padding_right [bool]

When collapse_preview is on and there is no preview, should there remain a
little padding on the right?  This allows you to click into that space to run
the file.

=item preview_directories [bool] <zP>

Preview directories in the preview column?

=item preview_files [bool] <zp>

Preview files in the preview column?

=item preview_script [string, None]

Which script should handle generating previews?  If the file doesn't exist, or
use_preview_script is off, ranger will handle previews itself by just printing
the content.

=item save_console_history [bool]

Should the console history be saved on exit?  If disabled, the console history
is reset when you restart ranger.

=item scroll_offset [integer]

Try to keep this much space between the top/bottom border when scrolling.

=item shorten_title [integer, bool]

Trim the title of the window if it gets long?  The number defines how many
directories are displayed at once, False turns off this feature.

=item show_cursor [bool]

Always show the terminal cursor?

=item show_hidden_bookmarks [bool]

Show dotfiles in the bookmark preview window? (Type ')

=item show_hidden [bool] <zh>, <^H>

Show hidden files?

=item sort_case_insensitive [bool] <zc>

Sort case-insensitively?  If true, "a" will be listed before "B" even though
its ASCII value is higher.

=item sort_directories_first [bool] <zd>

Sort directories first?

=item sort_reverse [bool] <or>

Sort reversed?

=item sort [string] <oa>, <ob>, <oc>, <om>, <on>, <ot>, <os>

Which sorting mechanism should be used?  Choose one of B<atime>, B<basename>,
B<ctime>, B<mtime>, B<natural>, B<type>, B<size>

Note: You can reverse the order by using an uppercase O in the key combination.

=item tilde_in_titlebar [bool]

Abbreviate $HOME with ~ in the title bar (first line) of ranger?

=item unicode_ellipsis [bool]

Use a unicode "..." character instead of "~" to mark cut-off filenames?

=item update_title [bool]

Set a window title?

=item use_preview_script [bool] <zv>

Use the preview script defined in the setting I<preview_script>?

=item xterm_alt_key [bool]

Enable this if key combinations with the Alt Key don't work for you.
(Especially on xterm)

=back


=head1 COMMANDS

You can enter the commands in the console which is opened by pressing ":".

There are additional commands which are directly translated to python
functions, one for every method in the ranger.core.actions.Actions class.
They are not documented here, since they are mostly for key bindings, not to be
typed in by a user.  Read the source if you are interested in them.

=over 2

=item bulkrename

This command opens a list of selected files in an external editor.  After you
edit and save the file, it will generate a shell script which does bulk
renaming according to the changes you did in the file.

This shell script is opened in an editor for you to review.  After you close
it, it will be executed.

=item cd [I<directory>]

The cd command changes the directory.  The command C<:cd -> is equivalent to
typing ``.

=item chain I<command1>[; I<command2>[; I<command3>...]]

Combines multiple commands into one, separated by columns.

=item chmod I<octal_number>

Sets the permissions of the selection to the octal number.

The octal number is between 000 and 777. The digits specify the permissions for
the user, the group and others.  A 1 permits execution, a 2 permits writing, a
4 permits reading.  Add those numbers to combine them. So a 7 permits
everything.

Key bindings in the form of [-+]<who><what> and =<octal> also exist.  For
example, B<+ar> allows reading for everyone, -ow forbids others to write and
=777 allows everything.

See also: man 1 chmod

=item cmap I<key> I<command>

Binds keys for the console. Works like the C<map> command.

=item console [-pI<N>] I<command>

Opens the console with the command already typed in.  The cursor is placed at
I<N>.

=item copycmap I<key> I<newkey> [I<newkey2> ...]

See C<copymap>

=item copymap I<key> I<newkey> [I<newkey2> ...]

Copies the keybinding I<key> to I<newkey> in the "browser" context.  This is a
deep copy, so if you change the new binding (or parts of it) later, the old one
is not modified.

To copy key bindings of the console, taskview, or pager use "copycmap",
"copytmap" or "copypmap".

=item copypmap I<key> I<newkey> [I<newkey2> ...]

See C<copymap>

=item copytmap I<key> I<newkey> [I<newkey2> ...]

See C<copymap>

=item cunmap I<key> I<command>

Removes key mappings of the console. Works like the C<unmap> command.

=item delete [I<confirmation>]

Destroy all files in the selection with a roundhouse kick.  ranger will ask for
a confirmation if you attempt to delete multiple (marked) files or non-empty
directories.

When asking for confirmation, this command will only proceed if the last given
word starts with a `y'.

=item edit [I<filename>]

Edit the current file or the file in the argument.

=item eval [I<-q>] I<python_code>

Evaluates the python code.  `fm' is a reference to the FM instance.  To display
text, use the function `p'.  The result is displayed on the screen unless you
use the "-q" option.

Examples:
 :eval fm
 :eval len(fm.env.directories)
 :eval p("Hello World!")

=item filter [I<string>]

Displays only the files which contain the I<string> in their basename.

=item find I<pattern>

Search files in the current directory that match the given (case-insensitive)
regular expression pattern as you type.  Once there is an unambiguous result,
it will be run immediately. (Or entered, if it's a directory.)

=item grep I<pattern>

Looks for a string in all marked files or directories.

=item load_copy_buffer

Load the copy buffer from F<~/.config/ranger/copy_buffer>.  This can be used to
pass the list of copied files to another ranger instance.

=item map I<key> I<command>

Assign the key combination to the given command.  Whenever you type the
key/keys, the command will be executed.  Additionally, if you use a quantifier
when typing the key, like 5j, it will be passed to the command as the attribute
"self.quantifier".

The keys you bind with this command are accessible in the file browser only,
not in the console, task view or pager.  To bind keys there, use the commands
"cmap", "tmap" or "pmap".

=item mark I<pattern>

Mark all files matching the regular expression pattern.

=item mkdir I<dirname>

Creates a directory with the name I<dirname>.

=item open_with [I<application>] [I<flags>] [I<mode>]

Open the selected files with the given application, unless it is omitted, in
which case the default application is used.  I<flags> are characters out of
"sdpcwSDPCW" and I<mode> is any positive integer. Their meanings are discussed
in their own sections.

=item pmap I<key> I<command>

Binds keys for the pager. Works like the C<map> command.

=item punmap I<key> I<command>

Removes key mappings of the pager. Works like the C<unmap> command.

=item quit

Like quit!, but closes only this tab if multiple tabs are open.

=item quit!

Quit ranger.  The current directory will be bookmarked as ' so you can re-enter
it by typing `` or '' the next time you start ranger.

=item rename I<newname>

Rename the current file.  If a file with that name already exists, the renaming
will fail.  Also try the key binding A for appending something to a file name.

=item save_copy_buffer

Save the copy buffer from I<~/.config/ranger/copy_buffer>.  This can be used to
pass the list of copied files to another ranger instance.

=item search I<pattern>

Search files in the current directory that match the given (case insensitive)
regular expression pattern.

=item search_inc I<pattern>

Search files in the current directory that match the given (case insensitive)
regular expression pattern.  This command gets you to matching files as you
type.

=item set I<option>=I<value>

Assigns a new value to an option.  Valid options are listed in the settings
section.  Use tab completion to get the current value of an option, though this
doesn't work for functions and regular expressions. Valid values are:

 None           None
 bool           True or False
 integer        0 or 1 or -1 or 2 etc.
 list           [1, 2, 3]
 tuple          1, 2, 3 or (1, 2, 3)
 function       lambda <arguments>: <expression>
 regexp         regexp('<pattern>')
 string         Anything

=item shell [-I<flags>] I<command>

Run a shell command.  I<flags> are discussed in their own section.

=item terminal

Spawns the I<x-terminal-emulator> starting in the current directory.

=item touch I<filename>

Creates an empty file with the name I<filename>, unless it already exists.

=item tmap I<key> I<command>

Binds keys for the taskview. Works like the C<map> command.

=item tunmap I<key> I<command>

Removes key mappings of the taskview. Works like the C<unmap> command.

=item unmap [I<keys> ...]

Removes the given key mappings in the "browser" context.  To unmap key bindings
in the console, taskview, or pager use "cunmap", "tunmap" or "punmap".

=item unmark I<pattern>

Unmark all files matching a regular expression pattern.

=back




=head1 FILES

ranger reads several configuration files which are located in
F<$HOME/.config/ranger> or F<$XDG_CONFIG_HOME/ranger> if $XDG_CONFIG_HOME is
defined.  The configuration is done mostly in python.  When removing a
configuration file, remove its compiled version too.  (Python automatically
compiles modules.  Since python3 they are saved in the __pycache__ directory,
earlier versions store them with the .pyc extension in the same directory.)

Use the --copy-config option to obtain the default configuration files.  They
include further documentation and it's too much to put here.

You don't need to copy the whole file though, most configuration files are
overlaid on top of the defaults (F<options.py>, F<command.py>, F<rc.conf>) or
can be sub-classed (F<apps.py>, F<colorschemes>).

When starting ranger with the B<--clean> option, it will not access or create
any of these files.

=head2 CONFIGURATION

=over 10

=item apps.py

Controls which applications are used to open files.

=item commands.py

Defines commands which can be used by typing ":".

=item rc.conf

Contains a list of commands which are executed on startup.  Mostly key bindings
are defined here.

=item options.py

Sets a handful of basic options.

=item scope.sh

This is a script that handles file previews.  When the options
I<use_preview_script> and I<preview_files> or, respectively,
I<preview_directories> are set, the program specified in the option
I<preview_script> is run and its output and/or exit code determines rangers
reaction.

=item colorschemes/

Colorschemes can be placed here.

=back

=head2 STORAGE

=over 10

=item bookmarks

This file contains a list of bookmarks.  The syntax is /^(.):(.*)$/. The first
character is the bookmark key and the rest after the colon is the path to the
file.  In ranger, bookmarks can be set by typing m<key>, accessed by typing
'<key> and deleted by typing um<key>.

=item copy_buffer

When running the command :save_copy_buffer, the paths of all currently copied
files are saved in this file.  You can later run :load_copy_buffer to copy the
same files again, pass them to another ranger instance or process them in a
script.

=item history

Contains a list of commands that have been previously typed in.

=item tagged

Contains a list of tagged files. The syntax is /^(.:)?(.*)$/ where the first
letter is the optional name of the tag and the rest after the optional colon is
the path to the file.  In ranger, tags can be set by pressing t and removed
with T.  To assign a named tag, type "<tagname>.

=back




=head1 ENVIRONMENT

These environment variables have an effect on ranger:

=over 8

=item EDITOR

Defines the editor to be used for the "E" key.  Defaults to the first installed
program out of "vim", "emacs" and "nano".

=item SHELL

Defines the shell that ranger is going to use with the :shell command and
the "S" key.  Defaults to "bash".

=item XDG_CONFIG_HOME

Specifies the directory for configuration files. Defaults to F<$HOME/.config>.

=item PYTHONOPTIMIZE

This variable determines the optimize level of python.

Using PYTHONOPTIMIZE=1 (like python -O) will make python discard assertion
statements.  You will gain efficiency at the cost of losing some debug info.

Using PYTHONOPTIMIZE=2 (like python -OO) will additionally discard any
docstrings.  Using this will disable the <F1> key on commands.

=back




=head1 EXAMPLES

=head2 VIM: File Chooser

This is a vim function which allows you to use ranger to select a file for
opening in your current vim session.

 fun! RangerChooser()
   silent !ranger --choosefile=/tmp/chosenfile `[ -z '%' ] && echo -n . || dirname %`
   if filereadable('/tmp/chosenfile')
     exec 'edit ' . system('cat /tmp/chosenfile')
     call system('rm /tmp/chosenfile')
   endif
   redraw!
 endfun
 map ,r :call RangerChooser()<CR>

=head2 Bash: cd to last path after exit

This is a bash function (for F<~/.bashrc>) to change the directory to the last
visited one after ranger quits.  You can always type C<cd -> to go back to the
original one.

 function ranger-cd {
   tempfile='/tmp/chosendir'
   /usr/bin/ranger --choosedir="$tempfile" "${@:-$(pwd)}"
   test -f "$tempfile" &&
   if [ "$(cat -- "$tempfile")" != "$(echo -n `pwd`)" ]; then
     cd -- "$(cat "$tempfile")"
   fi
   rm -f -- "$tempfile"
 }

 # This binds Ctrl-O to ranger-cd:
 bind '"\C-o":"ranger-cd\C-m"'




=head1 LICENSE

GNU General Public License 3 or (at your option) any later version.




=head1 LINKS

=over

=item Download: L<http://ranger.nongnu.org/ranger-stable.tar.gz>

=item The project page: L<http://ranger.nongnu.org/>

=item The mailing list: L<http://savannah.nongnu.org/mail/?group=ranger>

=back

ranger is maintained with the git version control system.  To fetch a fresh
copy, run:

 git clone git://git.savannah.nongnu.org/ranger.git




=head1 BUGS

Report bugs here: L<http://savannah.nongnu.org/bugs/?group=ranger>

Please include as much relevant information as possible.  For the most
diagnostic output, run ranger like this: C<PYTHONOPTIMIZE= ranger --debug>
a> 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029 2030 2031 2032 2033 2034 2035 2036 2037 2038 2039 2040 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 2056 2057 2058 2059 2060 2061 2062 2063 2064 2065 2066 2067 2068 2069 2070 2071 2072 2073 2074 2075 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 2097 2098 2099 2100 2101 2102 2103 2104 2105 2106 2107 2108 2109 2110 2111 2112 2113 2114 2115 2116 2117 2118 2119 2120 2121 2122 2123 2124 2125 2126 2127 2128 2129 2130 2131 2132 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 2152 2153 2154 2155 2156 2157 2158 2159 2160 2161 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<span class="Comment">; Mu: An exploration on making the global structure of programs more accessible.</span>
<span class="Comment">;</span>
<span class="Comment">;   &quot;Is it a language, or an operating system, or a virtual machine? Mu.&quot;</span>
<span class="Comment">;   (with apologies to Robert Pirsig: <a href="http://en.wikipedia.org/wiki/Mu_%28negative%29#In_popular_culture">http://en.wikipedia.org/wiki/Mu_%28negative%29#In_popular_culture</a>)</span>
<span class="Comment">;</span>
<span class="SalientComment">;; Motivation</span>
<span class="Comment">;</span>
<span class="Comment">; I want to live in a world where I can have an itch to tweak a program, clone</span>
<span class="Comment">; its open-source repository, orient myself on how it's organized, and make</span>
<span class="Comment">; the simple change I envisioned, all in an afternoon. This codebase tries to</span>
<span class="Comment">; make this possible for its readers. (More details: <a href="http://akkartik.name/about">http://akkartik.name/about</a>)</span>
<span class="Comment">;</span>
<span class="Comment">; What helps comprehend the global structure of programs? For starters, let's</span>
<span class="Comment">; enumerate what doesn't: idiomatic code, adherence to a style guide or naming</span>
<span class="Comment">; convention, consistent indentation, API documentation for each class, etc.</span>
<span class="Comment">; These conventional considerations improve matters in the small, but don't</span>
<span class="Comment">; help understand global organization. They help existing programmers manage</span>
<span class="Comment">; day-to-day operations, but they can't turn outsider programmers into</span>
<span class="Comment">; insiders. (Elaboration: <a href="http://akkartik.name/post/readable-bad">http://akkartik.name/post/readable-bad</a>)</span>
<span class="Comment">;</span>
<span class="Comment">; In my experience, two things have improved matters so far: version control</span>
<span class="Comment">; and automated tests. Version control lets me rewind back to earlier, simpler</span>
<span class="Comment">; times when the codebase was simpler, when its core skeleton was easier to</span>
<span class="Comment">; ascertain. Indeed, arguably what came first is by definition the skeleton of</span>
<span class="Comment">; a program, modulo major rewrites. Once you understand the skeleton, it</span>
<span class="Comment">; becomes tractable to 'play back' later major features one by one. (Previous</span>
<span class="Comment">; project that fleshed out this idea: <a href="http://akkartik.name/post/wart-layers">http://akkartik.name/post/wart-layers</a>)</span>
<span class="Comment">;</span>
<span class="Comment">; The second and biggest boost to comprehension comes from tests. Tests are</span>
<span class="Comment">; good for writers for well-understood reasons: they avoid regressions, and</span>
<span class="Comment">; they can influence code to be more decoupled and easier to change. In</span>
<span class="Comment">; addition, tests are also good for the outsider reader because they permit</span>
<span class="Comment">; active reading. If you can't build a program and run its tests it can't help</span>
<span class="Comment">; you understand it. It hangs limp at best, and might even be actively</span>
<span class="Comment">; misleading. If you can run its tests, however, it comes alive. You can step</span>
<span class="Comment">; through scenarios in a debugger. You can add logging and scan logs to make</span>
<span class="Comment">; sense of them. You can run what-if scenarios: &quot;why is this line not written</span>
<span class="Comment">; like this?&quot; Make a change, rerun tests: &quot;Oh, that's why.&quot; (Elaboration:</span>
<span class="Comment">; <a href="http://akkartik.name/post/literate-programming">http://akkartik.name/post/literate-programming</a>)</span>
<span class="Comment">;</span>
<span class="Comment">; However, tests are only useful to the extent that they exist. Think back to</span>
<span class="Comment">; your most recent codebase. Do you feel comfortable releasing a new version</span>
<span class="Comment">; just because the tests pass? I'm not aware of any such project. There's just</span>
<span class="Comment">; too many situations envisaged by the authors that were never encoded in a</span>
<span class="Comment">; test. Even disciplined authors can't test for performance or race conditions</span>
<span class="Comment">; or fault tolerance. If a line is phrased just so because of some subtle</span>
<span class="Comment">; performance consideration, it's hard to communicate to newcomers.</span>
<span class="Comment">;</span>
<span class="Comment">; This isn't an arcane problem, and it isn't just a matter of altruism. As</span>
<span class="Comment">; more and more such implicit considerations proliferate, and as the original</span>
<span class="Comment">; authors are replaced by latecomers for day-to-day operations, knowledge is</span>
<span class="Comment">; actively forgotten and lost. The once-pristine codebase turns into legacy</span>
<span class="Comment">; code that is hard to modify without expensive and stress-inducing</span>
<span class="Comment">; regressions.</span>
<span class="Comment">;</span>
<span class="Comment">; How to write tests for performance, fault tolerance, race conditions, etc.?</span>
<span class="Comment">; How can we state and verify that a codepath doesn't ever perform memory</span>
<span class="Comment">; allocation, or write to disk? It requires better, more observable primitives</span>
<span class="Comment">; than we currently have. Modern operating systems have their roots in the</span>
<span class="Comment">; 70s. Their interfaces were not designed to be testable. They provide no way</span>
<span class="Comment">; to simulate a full disk, or a specific sequence of writes from different</span>
<span class="Comment">; threads. We need something better.</span>
<span class="Comment">;</span>
<span class="Comment">; This project tries to move, groping, towards that 'something better', a</span>
<span class="Comment">; platform that is both thoroughly tested and allows programs written for it</span>
<span class="Comment">; to be thoroughly tested. It tries to answer the question:</span>
<span class="Comment">;</span>
<span class="Comment">;   If Denis Ritchie and Ken Thompson were to set out today to co-design unix</span>
<span class="Comment">;   and C, knowing what we know about automated tests, what would they do</span>
<span class="Comment">;   differently?</span>
<span class="Comment">;</span>
<span class="Comment">; To try to impose *some* constraints on this gigantic yak-shave, we'll try to</span>
<span class="Comment">; keep both language and OS as simple as possible, focused entirely on</span>
<span class="Comment">; permitting more kinds of tests, on first *collecting* all the information</span>
<span class="Comment">; about implicit considerations in some form so that readers and tools can</span>
<span class="Comment">; have at least some hope of making sense of it.</span>
<span class="Comment">;</span>
<span class="Comment">; The initial language will be just assembly. We'll try to make it convenient</span>
<span class="Comment">; to program in with some simple localized rewrite rules inspired by lisp</span>
<span class="Comment">; macros and literate programming. Programmers will have to do their own</span>
<span class="Comment">; memory management and register allocation, but we'll provide libraries to</span>
<span class="Comment">; help with them.</span>
<span class="Comment">;</span>
<span class="Comment">; The initial OS will provide just memory management and concurrency</span>
<span class="Comment">; primitives. No users or permissions (we don't live on mainframes anymore),</span>
<span class="Comment">; no kernel- vs user-mode, no virtual memory or process abstraction, all</span>
<span class="Comment">; threads sharing a single address space (use VMs for security and</span>
<span class="Comment">; sandboxing). The only use case we care about is getting a test harness to</span>
<span class="Comment">; run some code, feed it data through blocking channels, stop it and observe</span>
<span class="Comment">; its internals. The code under test is expected to cooperate in such testing,</span>
<span class="Comment">; by logging important events for the test harness to observe. (More info:</span>
<span class="Comment">; <a href="http://akkartik.name/post/tracing-tests">http://akkartik.name/post/tracing-tests</a>)</span>
<span class="Comment">;</span>
<span class="Comment">; The common thread here is elimination of abstractions, and it's not an</span>
<span class="Comment">; accident. Abstractions help insiders manage the evolution of a codebase, but</span>
<span class="Comment">; they actively hinder outsiders in understanding it from scratch. This</span>
<span class="Comment">; matters, because the funnel to turn outsiders into insiders is critical to</span>
<span class="Comment">; the long-term life of a codebase. Perhaps authors should raise their</span>
<span class="Comment">; estimation of the costs of abstraction, and go against their instincts for</span>
<span class="Comment">; introducing it. That's what I'll be trying to do: question every abstraction</span>
<span class="Comment">; before I introduce it. We'll see how it goes.</span>

<span class="Comment">; ---</span>

<span class="SalientComment">;; Getting started</span>
<span class="Comment">;</span>
<span class="Comment">; Mu is currently built atop Racket and Arc, but this is temporary and</span>
<span class="Comment">; contingent. We want to keep our options open, whether to port to a different</span>
<span class="Comment">; host language, and easy to rewrite to native code for any platform. So we'll</span>
<span class="Comment">; try to avoid 'cheating': relying on the host platform for advanced</span>
<span class="Comment">; functionality.</span>
<span class="Comment">;</span>
<span class="Comment">; Other than that, we'll say no more about the code, and focus in the rest of</span>
<span class="Comment">; this file on the scenarios the code cares about.</span>

<span class="Delimiter">(</span>selective-load <span class="Constant">&quot;mu.arc&quot;</span> section-level<span class="Delimiter">)</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>section <span class="Constant">20</span>

<span class="Comment">; Our language is assembly-like in that functions consist of series of</span>
<span class="Comment">; statements, and statements consist of an operation and its arguments (input</span>
<span class="Comment">; and output).</span>
<span class="Comment">;</span>
<span class="Comment">;   oarg1, oarg2, ... <span class="Op">&lt;-</span> op arg1, arg2, ...</span>
<span class="Comment">;</span>
<span class="Comment">; Args must be atomic, like an integer or a memory address, they can't be</span>
<span class="Comment">; expressions doing arithmetic or function calls. But we can have any number</span>
<span class="Comment">; of them.</span>
<span class="Comment">;</span>
<span class="Comment">; Since we're building on lisp, our code samples won't look quite like the</span>
<span class="Comment">; idealized syntax above. For now they will look like this:</span>
<span class="Comment">;</span>
<span class="Comment">;   (function f [</span>
<span class="Comment">;     (oarg1 oarg2 ... <span class="Op">&lt;-</span> op arg1 arg2 ...)</span>
<span class="Comment">;     ...</span>
<span class="Comment">;     ...</span>
<span class="Comment">;    ])</span>
<span class="Comment">;</span>
<span class="Comment">; Each arg/oarg can contain metadata separated by slashes and colons. In this</span>
<span class="Comment">; first example below, the only metadata is types: 'integer' for a memory</span>
<span class="Comment">; location containing an integer, and 'literal' for a value included directly</span>
<span class="Comment">; in code. (Assembly languages traditionally call them 'immediate' operands.)</span>
<span class="Comment">; In the future a simple tool will check that the types line up as expected in</span>
<span class="Comment">; each op. A different tool might add types where they aren't provided.</span>
<span class="Comment">; Instead of a monolithic compiler I want to build simple, lightweight tools</span>
<span class="Comment">; that can be combined in various ways, say for using different typecheckers</span>
<span class="Comment">; in different subsystems.</span>
<span class="Comment">;</span>
<span class="Comment">; In our tests we'll define such mu functions using a call to 'add-code', so</span>
<span class="Comment">; look for it when reading the code examples. Everything outside 'add-code' is</span>
<span class="Comment">; just test-harness details that can be skipped at first.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">23</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'copy' writes its lone 'arg' after the instruction name to its lone 'oarg' or output arg before the arrow. After this test, the value 23 is stored in memory address 1.&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; Our basic arithmetic ops can operate on memory locations or literals.</span>
<span class="Comment">; (Ignore hardware details like registers for now.)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;add&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'add' operates on two addresses&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;add-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> add <span class="MuConstant">2</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">5</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - ops can take 'literal' operands (but not return them)&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;sub-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> subtract <span class="MuConstant">1</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">-2</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'subtract'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;mul-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> multiply <span class="MuConstant">2</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">6</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'multiply'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;div-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> divide <span class="MuConstant">8</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Delimiter">(</span>/ real.8 <span class="Constant">3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'divide'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;idiv-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Constant">2</span>:integer <span class="Op">&lt;-</span> divide-with-remainder <span class="MuConstant">23</span>:literal <span class="MuConstant">6</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">3</span>  <span class="Constant">2</span> <span class="Constant">5</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'divide-with-remainder' performs integer division&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;dummy-oarg&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>_ <span class="Constant">2</span>:integer <span class="Op">&lt;-</span> divide-with-remainder <span class="MuConstant">23</span>:literal <span class="MuConstant">6</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">2</span> <span class="Constant">5</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - '_' oarg can ignore some results&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; Basic boolean operations: and, or, not</span>
<span class="Comment">; There are easy ways to encode booleans in binary, but we'll skip past those</span>
<span class="Comment">; details for now.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;and-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> and <span class="MuConstant">t</span>:literal <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> nil<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - logical 'and' for booleans&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; Basic comparison operations</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;lt-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> less-than <span class="MuConstant">4</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> nil<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'less-than' inequality operator&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;le-literal-false&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> lesser-or-equal <span class="MuConstant">4</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> nil<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'lesser-or-equal'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;le-literal-true&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> lesser-or-equal <span class="MuConstant">4</span>:literal <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> t<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'lesser-or-equal' returns true for equal operands&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;le-literal-true-2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> lesser-or-equal <span class="MuConstant">4</span>:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> t<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'lesser-or-equal' - 2&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; Control flow operations: jump, jump-if, jump-unless</span>
<span class="Comment">; These introduce a new type -- 'offset' -- for literals that refer to memory</span>
<span class="Comment">; locations relative to the current location.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;jump-skip&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">8</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">jump</span> <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; should be skipped</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">8</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'jump' skips some instructions&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;jump-target&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">8</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">jump</span> <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; should be skipped</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>  <span class="Comment">; never reached</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">8</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'jump' doesn't skip too many instructions&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;jump-if-skip&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> equal <span class="MuConstant">1</span>:literal <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">jump-if</span> <span class="Constant">1</span>:boolean <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> t  <span class="Constant">2</span> <span class="Constant">1</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'jump-if' is a conditional 'jump'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;jump-if-fallthrough&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> equal <span class="MuConstant">1</span>:literal <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">jump-if</span> <span class="Constant">3</span>:boolean <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> nil  <span class="Constant">2</span> <span class="Constant">3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - if 'jump-if's first arg is false, it doesn't skip any instructions&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;jump-if-backward&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Comment">; loop</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">2</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> equal <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">jump-if</span> <span class="Constant">3</span>:boolean <span class="MuConstant">-3</span>:offset<span class="Delimiter">)</span>  <span class="Comment">; to loop</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">4</span>  <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'jump-if' can take a negative offset to make backward jumps&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;jump-label&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Identifier">loop</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">2</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> equal <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">jump-if</span> <span class="Constant">3</span>:boolean <span class="Identifier">loop</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;-&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">4</span>  <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'jump-if' can take a negative offset to make backward jumps&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; Data movement relies on addressing modes:</span>
<span class="Comment">;   'direct' - refers to a memory location; default for most types.</span>
<span class="Comment">;   'literal' - directly encoded in the code; implicit for some types like 'offset'.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;direct-addressing&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'copy' performs direct addressing&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; 'Indirect' addressing refers to an address stored in a memory location.</span>
<span class="Comment">; Indicated by the metadata 'deref'. Usually requires an address type.</span>
<span class="Comment">; In the test below, the memory location 1 contains '2', so an indirect read</span>
<span class="Comment">; of location 1 returns the value of location 2.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;indirect-addressing&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer-address <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe; can't do this in general</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="Constant">1</span>:integer-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">34</span>  <span class="Constant">3</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'copy' performs indirect addressing&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; Output args can use indirect addressing. In the test below the value is</span>
<span class="Comment">; stored at the location stored in location 1 (i.e. location 2).</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;indirect-addressing-oarg&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer-address <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer-address/deref <span class="Op">&lt;-</span> add <span class="Constant">2</span>:integer <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">36</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - instructions can perform indirect addressing on output arg&quot;</span><span class="Delimiter">))</span>

<span class="SalientComment">;; Compound data types</span>
<span class="Comment">;</span>
<span class="Comment">; Until now we've dealt with scalar types like integers and booleans and</span>
<span class="Comment">; addresses, where mu looks like other assembly languages. In addition, mu</span>
<span class="Comment">; provides first-class support for compound types: arrays and and-records.</span>
<span class="Comment">;</span>
<span class="Comment">; 'get' accesses fields in and-records</span>
<span class="Comment">; 'index' accesses indices in arrays</span>
<span class="Comment">;</span>
<span class="Comment">; Both operations require knowledge about the types being worked on, so all</span>
<span class="Comment">; types used in mu programs are defined in a single global system-wide table</span>
<span class="Comment">; (see type* in mu.arc for the complete list of types; we'll add to it over</span>
<span class="Comment">; time).</span>

<span class="Comment">; first a sanity check that the table of types is consistent</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each <span class="Delimiter">(</span>typ typeinfo<span class="Delimiter">)</span> <span class="Global">type*</span>
  <span class="Delimiter">(</span>when typeinfo!and-record
    <span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is typeinfo!size <span class="Delimiter">(</span>len typeinfo!elems<span class="Delimiter">)))</span>
    <span class="Delimiter">(</span>when typeinfo!fields
      <span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is typeinfo!size <span class="Delimiter">(</span>len typeinfo!fields<span class="Delimiter">))))))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;get-record&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> get <span class="Constant">1</span>:integer-boolean-pair <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:integer-boolean-pair <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> nil  <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'get' accesses fields of and-records&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;get-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer-boolean-pair-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:boolean <span class="Op">&lt;-</span> get <span class="Constant">3</span>:integer-boolean-pair-address/deref <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">3</span>:integer-boolean-pair-address/deref <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> nil  <span class="Constant">3</span> <span class="Constant">1</span>  <span class="Constant">4</span> nil  <span class="Constant">5</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'get' accesses fields of and-record address&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;get-indirect-repeated&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">35</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">36</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer-point-pair-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer-point-pair-address-address <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer-integer-pair <span class="Op">&lt;-</span> get <span class="Constant">5</span>:integer-point-pair-address-address/deref/deref <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">5</span>:integer-point-pair-address-address/deref/deref <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains <span class="Constant">6</span> <span class="Delimiter">'(</span><span class="Constant">35</span> <span class="Constant">36</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'get' can deref multiple times&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;get-compound-field&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">35</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">36</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer-integer-pair <span class="Op">&lt;-</span> get <span class="Constant">1</span>:integer-point-pair <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> <span class="Constant">35</span>  <span class="Constant">3</span> <span class="Constant">36</span>  <span class="Constant">4</span> <span class="Constant">35</span>  <span class="Constant">5</span> <span class="Constant">36</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'get' accesses fields spanning multiple locations&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;get-address&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean-address <span class="Op">&lt;-</span> get-address <span class="Constant">1</span>:integer-boolean-pair <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> t  <span class="Constant">3</span> <span class="Constant">2</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'get-address' returns address of fields of and-records&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;get-address-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer-boolean-pair-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:boolean-address <span class="Op">&lt;-</span> get-address <span class="Constant">3</span>:integer-boolean-pair-address/deref <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> t  <span class="Constant">3</span> <span class="Constant">1</span>  <span class="Constant">4</span> <span class="Constant">2</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'get-address' accesses fields of and-record address&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;index-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer-boolean-pair <span class="Op">&lt;-</span> index <span class="Constant">1</span>:integer-boolean-pair-array <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">23</span> <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">24</span> <span class="Constant">5</span> t  <span class="Constant">6</span> <span class="Constant">24</span> <span class="Constant">7</span> t<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'index' accesses indices of arrays&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;index-direct&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer-boolean-pair <span class="Op">&lt;-</span> index <span class="Constant">1</span>:integer-boolean-pair-array <span class="Constant">6</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">23</span> <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">24</span> <span class="Constant">5</span> t  <span class="Constant">6</span> <span class="Constant">1</span>  <span class="Constant">7</span> <span class="Constant">24</span> <span class="Constant">8</span> t<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'index' accesses indices of arrays&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;index-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer-boolean-pair-array-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer-boolean-pair <span class="Op">&lt;-</span> index <span class="Constant">7</span>:integer-boolean-pair-array-address/deref <span class="Constant">6</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">23</span> <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">24</span> <span class="Constant">5</span> t  <span class="Constant">6</span> <span class="Constant">1</span>  <span class="Constant">7</span> <span class="Constant">1</span>  <span class="Constant">8</span> <span class="Constant">24</span> <span class="Constant">9</span> t<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'index' accesses indices of array address&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;index-indirect-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">25</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">26</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer-array-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer-array-address-address <span class="Op">&lt;-</span> copy <span class="MuConstant">6</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> index <span class="Constant">7</span>:integer-array-address-address/deref/deref <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.8</span> <span class="Constant">24</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'index' can deref multiple times&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;index-address&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer-boolean-pair-address <span class="Op">&lt;-</span> index-address <span class="Constant">1</span>:integer-boolean-pair-array <span class="Constant">6</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">23</span> <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">24</span> <span class="Constant">5</span> t  <span class="Constant">6</span> <span class="Constant">1</span>  <span class="Constant">7</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'index-address' returns addresses of indices of arrays&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;index-address-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer-boolean-pair-array-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer-boolean-pair-address <span class="Op">&lt;-</span> index-address <span class="Constant">7</span>:integer-boolean-pair-array-address/deref <span class="Constant">6</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">2</span>  <span class="Constant">2</span> <span class="Constant">23</span> <span class="Constant">3</span> nil  <span class="Constant">4</span> <span class="Constant">24</span> <span class="Constant">5</span> t  <span class="Constant">6</span> <span class="Constant">1</span>  <span class="Constant">7</span> <span class="Constant">1</span>  <span class="Constant">8</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'index-address' returns addresses of indices of array addresses&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; Array values know their length. Record lengths are saved in the types table.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;len-array&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> length <span class="Constant">1</span>:integer-boolean-pair-array<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.6</span> <span class="Constant">2</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'length' of array&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;len-array-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> length <span class="Constant">6</span>:integer-boolean-pair-array-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.7</span> <span class="Constant">2</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'length' of array address&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; 'sizeof' is a helper to determine the amount of memory required by a type.</span>
<span class="Comment">; Only for non-arrays.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;sizeof-record&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> sizeof integer-boolean-pair:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">2</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' returns space required by arg&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;sizeof-record-not-len&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> sizeof integer-point-pair:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>is <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">2</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' is different from number of elems&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; Regardless of a type's length, you can move it around just like a primitive.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;copy-record&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer-boolean-pair <span class="Op">&lt;-</span> copy <span class="Constant">1</span>:integer-boolean-pair<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> nil  <span class="Constant">3</span> <span class="Constant">34</span>  <span class="Constant">4</span> nil<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - ops can operate on records spanning multiple locations&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;copy-record2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">35</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">36</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer-point-pair <span class="Op">&lt;-</span> copy <span class="Constant">1</span>:integer-point-pair<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;sizeof&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> <span class="Constant">35</span>  <span class="Constant">3</span> <span class="Constant">36</span>
                       <span class="Comment">; result</span>
                       <span class="Constant">4</span> <span class="Constant">34</span>  <span class="Constant">5</span> <span class="Constant">35</span>  <span class="Constant">6</span> <span class="Constant">36</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - ops can operate on records with fields spanning multiple locations&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 20</span>

<span class="Delimiter">(</span>section <span class="Constant">100</span>

<span class="Comment">; A special kind of record is the 'tagged type'. It lets us represent</span>
<span class="Comment">; dynamically typed values, which save type information in memory rather than</span>
<span class="Comment">; in the code to use them. This will let us do things like create heterogenous</span>
<span class="Comment">; lists containing both integers and strings. Tagged values admit two</span>
<span class="Comment">; operations:</span>
<span class="Comment">;</span>
<span class="Comment">;   'save-type' - turns a regular value into a tagged-value of the appropriate type</span>
<span class="Comment">;   'maybe-coerce' - turns a tagged value into a regular value if the type matches</span>
<span class="Comment">;</span>
<span class="Comment">; The payload of a tagged value must occupy just one location. Save pointers</span>
<span class="Comment">; to records.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;tagged-value&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:type <span class="Op">&lt;-</span> copy integer:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Constant">4</span>:boolean <span class="Op">&lt;-</span> maybe-coerce <span class="Constant">1</span>:tagged-value integer:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn completed-routines*)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">34</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.4</span> t<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'maybe-coerce' copies value only if type tag matches&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;tagged-value-2&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:type <span class="Op">&lt;-</span> copy integer-address:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Constant">4</span>:boolean <span class="Op">&lt;-</span> maybe-coerce <span class="Constant">1</span>:tagged-value boolean:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">0</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.4</span> nil<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'maybe-coerce' doesn't copy value when type tag doesn't match&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;save-type&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj  <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> <span class="Delimiter">'</span>integer  <span class="Constant">3</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'save-type' saves the type of a value at runtime, turning it into a tagged-value&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;init-tagged-value&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value integer:literal <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Constant">4</span>:boolean <span class="Op">&lt;-</span> maybe-coerce <span class="Constant">2</span>:tagged-value-address/deref integer:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;cvt0&quot; &quot;cvt1&quot; &quot;sizeof&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">34</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.4</span> t<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'init-tagged-value' is the converse of 'maybe-coerce'&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; Now that we can package values together with their types, we can construct a</span>
<span class="Comment">; dynamically typed list.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;list&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Comment">; 1 points at first node: tagged-value (int 34)</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:list-address <span class="Op">&lt;-</span> new list:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:tagged-value-address <span class="Op">&lt;-</span> list-value-address <span class="Constant">1</span>:list-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:type-address <span class="Op">&lt;-</span> get-address <span class="Constant">2</span>:tagged-value-address/deref type:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:type-address/deref <span class="Op">&lt;-</span> copy integer:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:location <span class="Op">&lt;-</span> get-address <span class="Constant">2</span>:tagged-value-address/deref payload:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:location/deref <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:list-address-address <span class="Op">&lt;-</span> get-address <span class="Constant">1</span>:list-address/deref cdr:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:list-address-address/deref <span class="Op">&lt;-</span> new list:literal<span class="Delimiter">)</span></span>
      <span class="Comment">; 6 points at second node: tagged-value (boolean t)</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:list-address <span class="Op">&lt;-</span> copy <span class="Constant">5</span>:list-address-address/deref<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:tagged-value-address <span class="Op">&lt;-</span> list-value-address <span class="Constant">6</span>:list-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:type-address <span class="Op">&lt;-</span> get-address <span class="Constant">7</span>:tagged-value-address/deref type:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:type-address/deref <span class="Op">&lt;-</span> copy boolean:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">9</span>:location <span class="Op">&lt;-</span> get-address <span class="Constant">7</span>:tagged-value-address/deref payload:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">9</span>:location/deref <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">10</span>:list-address <span class="Op">&lt;-</span> get <span class="Constant">6</span>:list-address/deref <span class="MuConstant">1</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> first rep.routine!alloc
<span class="CommentedCode">;?     (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="CommentedCode">;?     (set dump-trace*)</span>
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
<span class="CommentedCode">;?     (prn memory*)</span>
    <span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
      <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~all first <span class="Delimiter">(</span>map <span class="Global">memory*</span> <span class="Delimiter">'(</span><span class="Constant">1</span> <span class="Constant">2</span> <span class="Constant">3</span><span class="Delimiter">)))</span>
            <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.first  <span class="Delimiter">'</span>integer<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.4</span> <span class="Delimiter">(</span>+ first <span class="Constant">1</span><span class="Delimiter">))</span>
            <span class="Delimiter">(</span>~is <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ first <span class="Constant">1</span><span class="Delimiter">))</span>  <span class="Constant">34</span><span class="Delimiter">)</span>
            <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.5</span> <span class="Delimiter">(</span>+ first <span class="Constant">2</span><span class="Delimiter">))</span>
            <span class="Delimiter">(</span><span class="Normal">let</span> second <span class="Global">memory*</span><span class="Constant">.6</span>
              <span class="Delimiter">(</span><span class="Normal">or</span>
                <span class="Delimiter">(</span>~is <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ first <span class="Constant">2</span><span class="Delimiter">))</span> second<span class="Delimiter">)</span>
                <span class="Delimiter">(</span>~all second <span class="Delimiter">(</span>map <span class="Global">memory*</span> <span class="Delimiter">'(</span><span class="Constant">6</span> <span class="Constant">7</span> <span class="Constant">8</span><span class="Delimiter">)))</span>
                <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.second <span class="Delimiter">'</span>boolean<span class="Delimiter">)</span>
                <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.9</span> <span class="Delimiter">(</span>+ second <span class="Constant">1</span><span class="Delimiter">))</span>
                <span class="Delimiter">(</span>~is <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ second <span class="Constant">1</span><span class="Delimiter">))</span> t<span class="Delimiter">)</span>
                <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.10</span> nil<span class="Delimiter">))))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - lists can contain elements of different types&quot;</span><span class="Delimiter">))))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">10</span>:list-address <span class="Op">&lt;-</span> list-next <span class="Constant">1</span>:list-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>test2<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.10</span> <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'list-next can move a list pointer to the next node&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; 'init-list' takes a variable number of args and constructs a list containing</span>
<span class="Comment">; them. Just integers for now.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;init-list&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> init-list <span class="MuConstant">3</span>:literal <span class="MuConstant">4</span>:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;cvt0&quot; &quot;cvt1&quot; &quot;sizeof&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">let</span> first <span class="Global">memory*</span><span class="Constant">.1</span>
<span class="CommentedCode">;?   (prn first)</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.first  <span class="Delimiter">'</span>integer<span class="Delimiter">)</span>
          <span class="Delimiter">(</span>~is <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ first <span class="Constant">1</span><span class="Delimiter">))</span>  <span class="Constant">3</span><span class="Delimiter">)</span>
          <span class="Delimiter">(</span><span class="Normal">let</span> second <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ first <span class="Constant">2</span><span class="Delimiter">))</span>
<span class="CommentedCode">;?             (prn second)</span>
            <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.second <span class="Delimiter">'</span>integer<span class="Delimiter">)</span>
                <span class="Delimiter">(</span>~is <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ second <span class="Constant">1</span><span class="Delimiter">))</span> <span class="Constant">4</span><span class="Delimiter">)</span>
                <span class="Delimiter">(</span><span class="Normal">let</span> third <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ second <span class="Constant">2</span><span class="Delimiter">))</span>
<span class="CommentedCode">;?                   (prn third)</span>
                  <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.third <span class="Delimiter">'</span>integer<span class="Delimiter">)</span>
                      <span class="Delimiter">(</span>~is <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ third <span class="Constant">1</span><span class="Delimiter">))</span> <span class="Constant">5</span><span class="Delimiter">)</span>
                      <span class="Delimiter">(</span>~is <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ third <span class="Constant">2</span><span class="Delimiter">)</span> nil<span class="Delimiter">)))))))</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'init-list' can construct a list of integers&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 100</span>

<span class="Delimiter">(</span>section <span class="Constant">20</span>

<span class="SalientComment">;; Functions</span>
<span class="Comment">;</span>
<span class="Comment">; Just like the table of types is centralized, functions are conceptualized as</span>
<span class="Comment">; a centralized table of operations just like the &quot;primitives&quot; we've seen so</span>
<span class="Comment">; far. If you create a function you can call it like any other op.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - calling a user-defined function runs its instructions&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-once&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">2</span> <span class="Global">curr-cycle*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - calling a user-defined function runs its instructions exactly once &quot;</span> <span class="Global">curr-cycle*</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; User-defined functions communicate with their callers through two</span>
<span class="Comment">; primitives:</span>
<span class="Comment">;</span>
<span class="Comment">;   'arg' - to access inputs</span>
<span class="Comment">;   'reply' - to return outputs</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-reply&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'reply' stops executing the current function&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-reply-nested&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> test2<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function test2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">2</span> <span class="Constant">34</span>  <span class="Constant">3</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'reply' stops executing any callers as necessary&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-reply-once&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">5</span> <span class="Global">curr-cycle*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'reply' executes instructions exactly once &quot;</span> <span class="Global">curr-cycle*</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;reply-increments-caller-pc&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function callee <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function caller <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>freeze <span class="Global">function*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> <span class="Delimiter">(</span>make-routine <span class="Delimiter">'</span>caller<span class="Delimiter">))</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is <span class="Constant">0</span> pc.routine*<span class="Delimiter">))</span>
<span class="Delimiter">(</span>push-stack <span class="Global">routine*</span> <span class="Delimiter">'</span>callee<span class="Delimiter">)</span>  <span class="Comment">; pretend call was at first instruction of caller</span>
<span class="Delimiter">(</span>run-for-time-slice <span class="Constant">1</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> pc.routine*<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'reply' should increment pc in caller (to move past calling instruction)&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-sequential&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">4</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span>
                       <span class="Comment">; test1's temporaries</span>
                       <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">5</span> <span class="Constant">3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'arg' accesses in order the operands of the most recent function call (the caller)&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-random-access&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">input</span> <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">input</span> <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">4</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; should never run</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span>
                       <span class="Comment">; test's temporaries</span>
                       <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">5</span> <span class="Constant">3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'arg' with index can access function call arguments out of order&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-random-then-sequential&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>_ <span class="Op">&lt;-</span> <span class="Identifier">input</span> <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span>  <span class="Comment">; takes next arg after index 1</span></span>
     <span class="Delimiter">])</span>  <span class="Comment">; should never run</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="MuConstant">1</span>:literal <span class="MuConstant">2</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'arg' with index resets index for later calls&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-status&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">5</span> t<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'arg' sets a second oarg when arg exists&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-missing&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">4</span> <span class="Constant">1</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - missing 'arg' doesn't cause error&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-missing-2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">6</span> nil<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - missing 'arg' wipes second oarg when provided&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-missing-3&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
    <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
    <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">6</span> nil<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - missing 'arg' consistently wipes its oarg&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-missing-4&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Comment">; if given two args, adds them; if given one arg, increments</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-if</span> <span class="Constant">6</span>:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      }
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">4</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">4</span> <span class="Constant">34</span>  <span class="Constant">5</span> <span class="Constant">1</span>  <span class="Constant">6</span> nil  <span class="Constant">7</span> <span class="Constant">35</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - function with optional second arg&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-arg-by-value&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; overwrite caller memory</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>  <span class="Comment">; arg not clobbered</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">0</span>  <span class="Constant">2</span> <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'arg' passes by value&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;arg-record&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer-boolean-pair <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="Constant">1</span>:integer-boolean-pair<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> nil  <span class="Constant">4</span> <span class="Constant">34</span>  <span class="Constant">5</span> nil<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'arg' can copy records spanning multiple locations&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;arg-record-indirect&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer-boolean-pair <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer-boolean-pair-address <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>test1 <span class="Constant">3</span>:integer-boolean-pair-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">34</span>  <span class="Constant">2</span> nil  <span class="Constant">3</span> <span class="Constant">1</span>  <span class="Constant">4</span> <span class="Constant">34</span>  <span class="Constant">5</span> nil<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'arg' can copy records spanning multiple locations in indirect mode&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-reply-oarg&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">4</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">6</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> test1 <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span>
                       <span class="Comment">; test1's temporaries</span>
                       <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">5</span> <span class="Constant">3</span>  <span class="Constant">6</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'reply' can take aguments that are returned, or written back into output args of caller&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-reply-oarg-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">4</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">6</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Constant">7</span>:integer <span class="Op">&lt;-</span> test1 <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span>    <span class="Constant">7</span> <span class="Constant">3</span>
                         <span class="Comment">; test1's temporaries</span>
                         <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">5</span> <span class="Constant">3</span>  <span class="Constant">6</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'reply' permits a function to return multiple values at once&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-fn-prepare-reply&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">4</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>prepare-reply <span class="Constant">6</span>:integer <span class="Constant">5</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Constant">7</span>:integer <span class="Op">&lt;-</span> test1 <span class="Constant">1</span>:integer <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">1</span>  <span class="Constant">2</span> <span class="Constant">3</span>  <span class="Constant">3</span> <span class="Constant">4</span>    <span class="Constant">7</span> <span class="Constant">3</span>
                         <span class="Comment">; test1's temporaries</span>
                         <span class="Constant">4</span> <span class="Constant">1</span>  <span class="Constant">5</span> <span class="Constant">3</span>  <span class="Constant">6</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - without args, 'reply' returns values from previous 'prepare-reply'.&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 20</span>

<span class="Delimiter">(</span>section <span class="Constant">11</span>

<span class="SalientComment">;; Structured programming</span>
<span class="Comment">;</span>
<span class="Comment">; Our jump operators are quite inconvenient to use, so mu provides a</span>
<span class="Comment">; lightweight tool called 'convert-braces' to work in a slightly more</span>
<span class="Comment">; convenient format with nested braces:</span>
<span class="Comment">;</span>
<span class="Comment">;   {</span>
<span class="Comment">;     some instructions</span>
<span class="Comment">;     {</span>
<span class="Comment">;       more instructions</span>
<span class="Comment">;     }</span>
<span class="Comment">;   }</span>
<span class="Comment">;</span>
<span class="Comment">; Braces are like labels in assembly language, they require no special</span>
<span class="Comment">; parsing. The operations 'loop' and 'break' jump to just after the enclosing</span>
<span class="Comment">; '{' and '}' respectively.</span>
<span class="Comment">;</span>
<span class="Comment">; Conditional and unconditional 'loop' and 'break' should give us 80% of the</span>
<span class="Comment">; benefits of the control-flow primitives we're used to in other languages,</span>
<span class="Comment">; like 'if', 'while', 'for', etc.</span>
<span class="Comment">;</span>
<span class="Comment">; Compare 'unquoted blocks' using {} with 'quoted blocks' using [] that we've</span>
<span class="Comment">; gotten used to seeing. Quoted blocks are used by top-level instructions to</span>
<span class="Comment">; provide code without running it.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;c{0&quot; &quot;c{1&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>  <span class="Comment">; 'begin' is just a hack because racket turns braces into parens</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>not-equal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">3</span> integer<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break-if</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">4</span> boolean<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>not-equal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">3</span> integer<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump-if</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces replaces break-if with a jump-if to after the next close-brace&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces-empty-block&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;c{0&quot; &quot;c{1&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break</span><span class="Delimiter">)))</span></span>
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces works for degenerate blocks&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces-nested-break&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>not-equal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">3</span> integer<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break-if</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">4</span> boolean<span class="Delimiter">)))</span></span>
                { <span class="CommentedCode">begin</span>
                  <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                }
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>not-equal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">3</span> integer<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump-if</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces balances braces when converting break&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces-repeated-jump&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;c{0&quot; &quot;c{1&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break</span><span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              }
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break</span><span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces handles jumps on jumps&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces-nested-loop&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                { <span class="CommentedCode">begin</span>
                  <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>not-equal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">3</span> integer<span class="Delimiter">)))</span></span>
                }
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">loop-if</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">4</span> boolean<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>not-equal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">3</span> integer<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump-if</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">4</span> boolean<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">-3</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">reply</span><span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces balances braces when converting 'loop'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces-label&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              foo
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            foo
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces skips past labels&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces-label-increments-offset&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break</span><span class="Delimiter">)))</span></span>
                foo
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span>
            foo
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces treats labels as instructions&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-braces-label-increments-offset2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;c{0&quot; &quot;c{1&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break</span><span class="Delimiter">)))</span></span>
                foo
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break</span><span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              }
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span></span>
            foo
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-braces treats labels as instructions - 2&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;break-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;-&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                { <span class="CommentedCode">begin</span>
                  <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">break</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">2</span> blocks<span class="Delimiter">)))</span></span>
                }
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              }<span class="Delimiter">))</span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">4</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'break' can take an extra arg with number of nested blocks to exit&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;loop&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">loop</span><span class="Delimiter">)))</span></span>
              }<span class="Delimiter">))</span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">-2</span> offset<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'loop' jumps to start of containing block&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; todo: fuzz-test invariant: convert-braces offsets should be robust to any</span>
<span class="Comment">; number of inner blocks inside but not around the loop block.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;loop-nested&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                { <span class="CommentedCode">begin</span>
                  <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                }
                <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">loop</span><span class="Delimiter">)))</span></span>
              }<span class="Delimiter">))</span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">-3</span> offset<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'loop' correctly jumps back past nested braces&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;loop-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;-&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-braces
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              { <span class="CommentedCode">begin</span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
                { <span class="CommentedCode">begin</span>
                  <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">loop</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">2</span> blocks<span class="Delimiter">)))</span></span>
                }
              }<span class="Delimiter">))</span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">-3</span> offset<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'loop' can take an extra arg with number of nested blocks to exit&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-labels&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-labels
            <span class="Mu"><span class="Delimiter">'(</span><span class="Identifier">loop</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Identifier">loop</span> offset<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'(</span><span class="Identifier">loop</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Identifier">jump</span><span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">-2</span> offset<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'convert-labels' rewrites jumps to labels&quot;</span><span class="Delimiter">))</span>

<span class="SalientComment">;; Variables</span>
<span class="Comment">;</span>
<span class="Comment">; A big convenience high-level languages provide is the ability to name memory</span>
<span class="Comment">; locations. In mu, a lightweight tool called 'convert-names' provides this</span>
<span class="Comment">; convenience.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span>y integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span>z integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names renames symbolic names to integer locations&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-compound&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Comment">; copying 0 into pair is meaningless; just for testing</span>
            <span class="Mu"><span class="Delimiter">'((((</span>x integer-boolean-pair<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span>y integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names increments integer locations by the size of the type of the previous var&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-nil&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span>y integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Comment">; nil location is meaningless; just for testing</span>
              <span class="Mu"><span class="Delimiter">(((</span>nil integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span>nil integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names never renames nil&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-string&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer-address<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>new<span class="Delimiter">))</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer-address<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>new<span class="Delimiter">))</span> <span class="Constant">&quot;foo&quot;</span><span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;convert-names passes through raw strings (just a convenience arg for 'new')&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-raw&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span>y integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>raw<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span>y integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>raw<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names never renames raw operands&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Comment">; meaningless; just for testing</span>
            <span class="Mu"><span class="Delimiter">'((((</span>x literal<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span>x literal<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names never renames literals&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-literal-2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span>x literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span>x literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names never renames literals, even when the name matches a variable&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; kludgy support for 'fork' below</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-functions&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span>y integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              <span class="Comment">; meaningless; just for testing</span>
              <span class="Mu"><span class="Delimiter">(((</span>z fn<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span>z fn<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names never renames fns&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-record-fields&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;cn0&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">34</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span>bool offset<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">34</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names replaces record field offsets&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-record-fields-ambiguous&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>errsafe <span class="Delimiter">(</span>convert-names
               <span class="Mu"><span class="Delimiter">'((((</span>bool boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">t</span> literal<span class="Delimiter">)))</span></span>
                 <span class="Mu"><span class="Delimiter">(((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">34</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span>bool offset<span class="Delimiter">))))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names doesn't allow offsets and variables with the same name in a function&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-record-fields-ambiguous-2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>errsafe <span class="Delimiter">(</span>convert-names
               <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">34</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span>bool offset<span class="Delimiter">)))</span></span>
                 <span class="Mu"><span class="Delimiter">(((</span>bool boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">t</span> literal<span class="Delimiter">))))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names doesn't allow offsets and variables with the same name in a function - 2&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-record-fields-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;cn0&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">34</span> integer-boolean-pair-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span> <span class="Delimiter">((</span>bool offset<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">34</span> integer-boolean-pair-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names replaces field offsets for record addresses&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-record-fields-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">2</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span>bool offset<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span>bool offset<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">2</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">3</span> boolean<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>get<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer-boolean-pair<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">1</span> offset<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names replaces field offsets with multiple mentions&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-label&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
              foo<span class="Delimiter">))</span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            foo<span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names skips past labels&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 11</span>

<span class="Delimiter">(</span>section <span class="Constant">20</span>

<span class="Comment">; A rudimentary memory allocator. Eventually we want to write this in mu.</span>
<span class="Comment">;</span>
<span class="Comment">; No deallocation yet; let's see how much code we can build in mu before we</span>
<span class="Comment">; feel the need for it.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-primitive&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer-address <span class="Op">&lt;-</span> new integer:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
<span class="CommentedCode">;?     (set dump-trace*)</span>
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
<span class="CommentedCode">;?     (prn memory*)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.1</span> before<span class="Delimiter">)</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' returns current high-water mark&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso rep.routine!alloc <span class="Delimiter">(</span>+ before <span class="Constant">1</span><span class="Delimiter">))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' on primitive types increments high-water mark by their size&quot;</span><span class="Delimiter">))))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-array-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:type-array-address <span class="Op">&lt;-</span> new type-array:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
<span class="CommentedCode">;?     (prn memory*)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.1</span> before<span class="Delimiter">)</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' on array with literal size returns current high-water mark&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso rep.routine!alloc <span class="Delimiter">(</span>+ before <span class="Constant">6</span><span class="Delimiter">))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' on primitive arrays increments high-water mark by their size&quot;</span><span class="Delimiter">))))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;new-array-direct&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:type-array-address <span class="Op">&lt;-</span> new type-array:literal <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
<span class="CommentedCode">;?     (prn memory*)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.2</span> before<span class="Delimiter">)</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' on array with variable size returns current high-water mark&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso rep.routine!alloc <span class="Delimiter">(</span>+ before <span class="Constant">6</span><span class="Delimiter">))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' on primitive arrays increments high-water mark by their (variable) size&quot;</span><span class="Delimiter">))))</span>

<span class="Comment">; Even though our memory locations can now have names, the names are all</span>
<span class="Comment">; globals, accessible from any function. To isolate functions from their</span>
<span class="Comment">; callers we need local variables, and mu provides them using a special</span>
<span class="Comment">; variable called default-space. When you initialize such a variable (likely</span>
<span class="Comment">; with a call to our just-defined memory allocator) mu interprets memory</span>
<span class="Comment">; locations as offsets from its value. If default-space is set to 1000, for</span>
<span class="Comment">; example, reads and writes to memory location 1 will really go to 1001.</span>
<span class="Comment">;</span>
<span class="Comment">; 'default-space' is itself hard-coded to be function-local; it's nil in a new</span>
<span class="Comment">; function, and it's restored when functions return to their callers. But the</span>
<span class="Comment">; actual space allocation is independent. So you can define closures, or do</span>
<span class="Comment">; even more funky things like share locals between two coroutines.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;set-default-space&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
<span class="CommentedCode">;?     (set dump-trace*)</span>
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
<span class="CommentedCode">;?     (prn memory*)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~and <span class="Delimiter">(</span>~is <span class="Constant">23</span> <span class="Global">memory*</span><span class="Constant">.1</span><span class="Delimiter">)</span>
              <span class="Delimiter">(</span>is <span class="Constant">23</span> <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ before <span class="Constant">2</span><span class="Delimiter">))))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - default-space implicitly modifies variable locations&quot;</span><span class="Delimiter">))))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;set-default-space-skips-offset&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
<span class="CommentedCode">;?     (set dump-trace*)</span>
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
<span class="CommentedCode">;?     (prn memory*)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~and <span class="Delimiter">(</span>~is <span class="Constant">23</span> <span class="Global">memory*</span><span class="Constant">.1</span><span class="Delimiter">)</span>
              <span class="Delimiter">(</span>is <span class="Constant">23</span> <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ before <span class="Constant">2</span><span class="Delimiter">))))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - default-space skips 'offset' types just like literals&quot;</span><span class="Delimiter">))))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;default-space-bounds-check&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine <span class="Delimiter">(</span>car <span class="Global">completed-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>no rep.routine!error<span class="Delimiter">)</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - default-space checks bounds&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;default-space-and-get-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer-boolean-pair-address <span class="Op">&lt;-</span> new integer-boolean-pair:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer-address <span class="Op">&lt;-</span> get-address <span class="Constant">1</span>:integer-boolean-pair-address/deref <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer-address/deref <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer/raw <span class="Op">&lt;-</span> get <span class="Constant">1</span>:integer-boolean-pair-address/deref <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="CommentedCode">;? (prn completed-routines*)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">34</span> <span class="Global">memory*</span><span class="Constant">.3</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - indirect 'get' works in the presence of default-space&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;default-space-and-index-indirect&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer-array-address <span class="Op">&lt;-</span> new integer-array:literal <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer-address <span class="Op">&lt;-</span> index-address <span class="Constant">1</span>:integer-array-address/deref <span class="MuConstant">2</span>:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer-address/deref <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer/raw <span class="Op">&lt;-</span> index <span class="Constant">1</span>:integer-array-address/deref <span class="MuConstant">2</span>:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;array-info&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="CommentedCode">;? (prn completed-routines*)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">34</span> <span class="Global">memory*</span><span class="Constant">.3</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - indirect 'index' works in the presence of default-space&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-names-default-space&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-names
            <span class="Mu"><span class="Delimiter">'((((</span>x integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">4</span> literal<span class="Delimiter">)))</span></span>
              <span class="Mu"><span class="Delimiter">(((</span>y integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">2</span> literal<span class="Delimiter">)))</span></span>
              <span class="Comment">; unsafe in general; don't write random values to 'default-space'</span>
              <span class="Mu"><span class="Delimiter">(((</span>default-space integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>add<span class="Delimiter">))</span> <span class="Delimiter">((</span>x integer<span class="Delimiter">))</span> <span class="Delimiter">((</span>y integer<span class="Delimiter">)))))</span></span>
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">4</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">2</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span>default-space integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>add<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="Constant">2</span> integer<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-names never renames default-space&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;suppress-default-space&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer/raw <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
<span class="CommentedCode">;?     (set dump-trace*)</span>
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
<span class="CommentedCode">;?     (prn memory*)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~and <span class="Delimiter">(</span>is <span class="Constant">23</span> <span class="Global">memory*</span><span class="Constant">.1</span><span class="Delimiter">)</span>
              <span class="Delimiter">(</span>~is <span class="Constant">23</span> <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ before <span class="Constant">1</span><span class="Delimiter">))))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - default-space skipped for locations with metadata 'raw'&quot;</span><span class="Delimiter">))))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;array-copy-indirect-scoped&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">10</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; pretend allocation</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> copy <span class="MuConstant">10</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; raw location 12</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer-boolean-pair-array-address <span class="Op">&lt;-</span> copy <span class="MuConstant">12</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer-boolean-pair-array <span class="Op">&lt;-</span> copy <span class="Constant">6</span>:integer-boolean-pair-array-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;m&quot; &quot;sizeof&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.18</span> <span class="Constant">2</span><span class="Delimiter">)</span>  <span class="Comment">; variable 7</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - indirect array copy in the presence of 'default-space'&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;len-array-indirect-scoped&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">10</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; pretend allocation</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> copy <span class="MuConstant">10</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; raw location 12</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> copy <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer-address <span class="Op">&lt;-</span> copy <span class="MuConstant">12</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; unsafe</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> length <span class="Constant">6</span>:integer-boolean-pair-array-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;addr&quot; &quot;sz&quot; &quot;array-len&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.18</span> <span class="Constant">2</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'len' accesses length of array address&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;default-space-shared&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function init-counter <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; initialize to 3</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> default-space:space-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function increment-counter <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; increment</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:space-address <span class="Op">&lt;-</span> init-counter<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> increment-counter <span class="Constant">1</span>:space-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> increment-counter <span class="Constant">1</span>:space-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">5</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - multiple calls to a function can share locals&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;default-space-closure&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function init-counter <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; initialize to 3</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> default-space:space-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function increment-counter <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">0</span>:space-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span>  <span class="Comment">; share outer space</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer/space:1 <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer/space:1 <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; increment</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; dummy</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">1</span>:integer/space:1<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:space-address <span class="Op">&lt;-</span> init-counter<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> increment-counter <span class="Constant">1</span>:space-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> increment-counter <span class="Constant">1</span>:space-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">5</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - multiple calls to a function can share locals&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;default-space-closure-with-names&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function init-counter <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>x:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>y:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; correct copy of y</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> default-space:space-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function increment-counter <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">0</span>:space-address/names:init-counter <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span>  <span class="Comment">; outer space must be created by 'init-counter' above</span></span>
      <span class="Mu"><span class="Delimiter">(</span>y:integer/space:1 <span class="Op">&lt;-</span> add y:integer/space:1 <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; increment</span></span>
      <span class="Mu"><span class="Delimiter">(</span>y:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; dummy</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> y:integer/space:1<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:space-address/names:init-counter <span class="Op">&lt;-</span> init-counter<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> increment-counter <span class="Constant">1</span>:space-address/names:init-counter<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> increment-counter <span class="Constant">1</span>:space-address/names:init-counter<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">5</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - multiple calls to a function can share locals&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 20</span>

<span class="Delimiter">(</span>section <span class="Constant">100</span>

<span class="SalientComment">;; Dynamic dispatch</span>
<span class="Comment">;</span>
<span class="Comment">; Putting it all together, here's how you define generic functions that run</span>
<span class="Comment">; different code based on the types of their args.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;dispatch-clause&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Comment">; doesn't matter too much how many locals you allocate space for (here 20)</span>
      <span class="Comment">; if it's slightly too many -- memory is plentiful</span>
      <span class="Comment">; if it's too few -- mu will raise an error</span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">20</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>first-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Comment">; if given integers, add them</span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span>first-arg:integer match?:boolean <span class="Op">&lt;-</span> maybe-coerce first-arg-box:tagged-value-address/deref integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> match?:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg:integer <span class="Op">&lt;-</span> maybe-coerce second-arg-box:tagged-value-address/deref integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>result:integer <span class="Op">&lt;-</span> add first-arg:integer second-arg:integer<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> result:integer<span class="Delimiter">)</span></span>
      }
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value integer:literal <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value integer:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> test1 <span class="Constant">1</span>:tagged-value-address <span class="Constant">2</span>:tagged-value-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">37</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - an example function that checks that its oarg is an integer&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;dispatch-multiple-clauses&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">20</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>first-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Comment">; if given integers, add them</span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span>first-arg:integer match?:boolean <span class="Op">&lt;-</span> maybe-coerce first-arg-box:tagged-value-address/deref integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> match?:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg:integer <span class="Op">&lt;-</span> maybe-coerce second-arg-box:tagged-value-address/deref integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>result:integer <span class="Op">&lt;-</span> add first-arg:integer second-arg:integer<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> result:integer<span class="Delimiter">)</span></span>
      }
      <span class="Comment">; if given booleans, or them (it's a silly kind of generic function)</span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span>first-arg:boolean match?:boolean <span class="Op">&lt;-</span> maybe-coerce first-arg-box:tagged-value-address/deref boolean:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> match?:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg:boolean <span class="Op">&lt;-</span> maybe-coerce second-arg-box:tagged-value-address/deref boolean:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>result:boolean <span class="Op">&lt;-</span> or first-arg:boolean second-arg:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> result:integer<span class="Delimiter">)</span></span>
      }
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value boolean:literal <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value boolean:literal <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> test1 <span class="Constant">1</span>:tagged-value-address <span class="Constant">2</span>:tagged-value-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (each stmt function*!test-fn</span>
<span class="CommentedCode">;?   (prn &quot;  &quot; stmt))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (wipe dump-trace*)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.3</span> t<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - an example function that can do different things (dispatch) based on the type of its args or oargs&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;dispatch-multiple-calls&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">20</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>first-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Comment">; if given integers, add them</span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span>first-arg:integer match?:boolean <span class="Op">&lt;-</span> maybe-coerce first-arg-box:tagged-value-address/deref integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> match?:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg:integer <span class="Op">&lt;-</span> maybe-coerce second-arg-box:tagged-value-address/deref integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>result:integer <span class="Op">&lt;-</span> add first-arg:integer second-arg:integer<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> result:integer<span class="Delimiter">)</span></span>
      }
      <span class="Comment">; if given booleans, or them (it's a silly kind of generic function)</span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span>first-arg:boolean match?:boolean <span class="Op">&lt;-</span> maybe-coerce first-arg-box:tagged-value-address/deref boolean:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> match?:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg-box:tagged-value-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>second-arg:boolean <span class="Op">&lt;-</span> maybe-coerce second-arg-box:tagged-value-address/deref boolean:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span>result:boolean <span class="Op">&lt;-</span> or first-arg:boolean second-arg:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> result:integer<span class="Delimiter">)</span></span>
      }
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value boolean:literal <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value boolean:literal <span class="MuConstant">nil</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> test1 <span class="Constant">1</span>:tagged-value-address <span class="Constant">2</span>:tagged-value-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">10</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value integer:literal <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">11</span>:tagged-value-address <span class="Op">&lt;-</span> init-tagged-value integer:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">12</span>:integer <span class="Op">&lt;-</span> test1 <span class="Constant">10</span>:tagged-value-address <span class="Constant">11</span>:tagged-value-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~and <span class="Delimiter">(</span>is <span class="Global">memory*</span><span class="Constant">.3</span> t<span class="Delimiter">)</span> <span class="Delimiter">(</span>is <span class="Global">memory*</span><span class="Constant">.12</span> <span class="Constant">37</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - different calls can exercise different clauses of the same function&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; We can also dispatch based on the type of the operands or results at the</span>
<span class="Comment">; caller.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;dispatch-otype&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:type <span class="Op">&lt;-</span> otype <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> equal <span class="Constant">4</span>:type integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> <span class="Constant">5</span>:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">6</span>:integer <span class="Constant">7</span>:integer<span class="Delimiter">)</span></span>
      }
      <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">8</span>:integer<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> test1 <span class="MuConstant">1</span>:literal <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - an example function that checks that its oarg is an integer&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;dispatch-otype-multiple-clauses&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:type <span class="Op">&lt;-</span> otype <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
      { <span class="CommentedCode">begin</span>
        <span class="Comment">; integer needed? add args</span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> equal <span class="Constant">4</span>:type integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> <span class="Constant">5</span>:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">6</span>:integer <span class="Constant">7</span>:integer<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">8</span>:integer<span class="Delimiter">)</span></span>
      }
      { <span class="CommentedCode">begin</span>
        <span class="Comment">; boolean needed? 'or' args</span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> equal <span class="Constant">4</span>:type boolean:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> <span class="Constant">5</span>:boolean <span class="MuConstant">4</span>:offset<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:boolean <span class="Op">&lt;-</span> or <span class="Constant">6</span>:boolean <span class="Constant">7</span>:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">8</span>:boolean<span class="Delimiter">)</span></span>
      }<span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> test1 <span class="MuConstant">t</span>:literal <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (each stmt function*!test1</span>
<span class="CommentedCode">;?   (prn &quot;  &quot; stmt))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (wipe dump-trace*)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.1</span> t<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - an example function that can do different things (dispatch) based on the type of its args or oargs&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;dispatch-otype-multiple-calls&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function test1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:type <span class="Op">&lt;-</span> otype <span class="MuConstant">0</span>:offset<span class="Delimiter">)</span></span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> equal <span class="Constant">4</span>:type integer:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> <span class="Constant">5</span>:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">6</span>:integer <span class="Constant">7</span>:integer<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">8</span>:integer<span class="Delimiter">)</span></span>
      }
      { <span class="CommentedCode">begin</span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> equal <span class="Constant">4</span>:type boolean:literal<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">break-unless</span> <span class="Constant">5</span>:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:boolean <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:boolean <span class="Op">&lt;-</span> or <span class="Constant">6</span>:boolean <span class="Constant">7</span>:boolean<span class="Delimiter">)</span></span>
        <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="Constant">8</span>:boolean<span class="Delimiter">)</span></span>
      }<span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:boolean <span class="Op">&lt;-</span> test1 <span class="MuConstant">t</span>:literal <span class="MuConstant">t</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> test1 <span class="MuConstant">3</span>:literal <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~and <span class="Delimiter">(</span>is <span class="Global">memory*</span><span class="Constant">.1</span> t<span class="Delimiter">)</span> <span class="Delimiter">(</span>is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">7</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - different calls can exercise different clauses of the same function&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 100</span>

<span class="Delimiter">(</span>section <span class="Constant">20</span>

<span class="SalientComment">;; Concurrency</span>
<span class="Comment">;</span>
<span class="Comment">; A rudimentary process scheduler. You can 'run' multiple functions at once,</span>
<span class="Comment">; and they share the virtual processor.</span>
<span class="Comment">;</span>
<span class="Comment">; There's also a 'fork' primitive to let functions create new threads of</span>
<span class="Comment">; execution (we call them routines).</span>
<span class="Comment">;</span>
<span class="Comment">; Eventually we want to allow callers to influence how much of their CPU they</span>
<span class="Comment">; give to their 'children', or to rescind a child's running privileges.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1 <span class="Delimiter">'</span>f2<span class="Delimiter">)</span>
<span class="Delimiter">(</span>when <span class="Delimiter">(</span>~iso <span class="Constant">2</span> <span class="Global">curr-cycle*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler didn't run the right number of instructions: &quot;</span> <span class="Global">curr-cycle*</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span> <span class="Delimiter">(</span>obj <span class="Constant">1</span> <span class="Constant">3</span>  <span class="Constant">2</span> <span class="Constant">4</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler runs multiple functions: &quot;</span> <span class="Global">memory*</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>check-trace-contents <span class="Constant">&quot;scheduler orders functions correctly&quot;</span>
  <span class="Delimiter">'((</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;f1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;f2&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">))</span>
<span class="Delimiter">(</span>check-trace-contents <span class="Constant">&quot;scheduler orders schedule and run events correctly&quot;</span>
  <span class="Delimiter">'((</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;f1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 0&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;f2&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f2 0&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-alternate&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>= <span class="Global">scheduling-interval*</span> <span class="Constant">1</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1 <span class="Delimiter">'</span>f2<span class="Delimiter">)</span>
<span class="Delimiter">(</span>check-trace-contents <span class="Constant">&quot;scheduler alternates between routines&quot;</span>
  <span class="Delimiter">'((</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 0&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f2 0&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f2 1&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-sleep&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Comment">; add one baseline routine to run (empty running-routines* handled below)</span>
<span class="Delimiter">(</span>enq make-routine!f1 <span class="Global">running-routines*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is <span class="Constant">1</span> len.running-routines*<span class="Delimiter">))</span>
<span class="Comment">; sleeping routine</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!f2
  <span class="Mu"><span class="Delimiter">(</span>= rep.routine!sleep <span class="Delimiter">'(</span>for-some-cycles <span class="Constant">23</span><span class="Delimiter">))</span></span>
  <span class="Delimiter">(</span>set <span class="Global">sleeping-routines*</span>.routine<span class="Delimiter">))</span>
<span class="Comment">; not yet time for it to wake up</span>
<span class="Delimiter">(</span>= <span class="Global">curr-cycle*</span> <span class="Constant">23</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot;)))</span>
<span class="Delimiter">(</span>update-scheduler-state<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> len.running-routines*<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler lets routines sleep&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-wakeup&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Comment">; add one baseline routine to run (empty running-routines* handled below)</span>
<span class="Delimiter">(</span>enq make-routine!f1 <span class="Global">running-routines*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is <span class="Constant">1</span> len.running-routines*<span class="Delimiter">))</span>
<span class="Comment">; sleeping routine</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!f2
  <span class="Delimiter">(</span>= rep.routine!sleep <span class="Delimiter">'(</span>for-some-cycles <span class="Constant">23</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>set <span class="Global">sleeping-routines*</span>.routine<span class="Delimiter">))</span>
<span class="Comment">; time for it to wake up</span>
<span class="Delimiter">(</span>= <span class="Global">curr-cycle*</span> <span class="Constant">24</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>update-scheduler-state<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">2</span> len.running-routines*<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler wakes up sleeping routines at the right time&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-sleep-location&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Comment">; add one baseline routine to run (empty running-routines* handled below)</span>
<span class="Delimiter">(</span>enq make-routine!f1 <span class="Global">running-routines*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is <span class="Constant">1</span> len.running-routines*<span class="Delimiter">))</span>
<span class="Comment">; blocked routine waiting for location 23 to change</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!f2
  <span class="Delimiter">(</span>= rep.routine!sleep <span class="Delimiter">'(</span>until-location-changes <span class="Constant">23</span> <span class="Constant">0</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>set <span class="Global">sleeping-routines*</span>.routine<span class="Delimiter">))</span>
<span class="Comment">; leave memory location 23 unchanged</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.23</span> <span class="Constant">0</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="CommentedCode">;? (prn running-routines*)</span>
<span class="CommentedCode">;? (prn sleeping-routines*)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot;)))</span>
<span class="Delimiter">(</span>update-scheduler-state<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn running-routines*)</span>
<span class="CommentedCode">;? (prn sleeping-routines*)</span>
<span class="Comment">; routine remains blocked</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> len.running-routines*<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler lets routines block on locations&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-wakeup-location&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Comment">; add one baseline routine to run (empty running-routines* handled below)</span>
<span class="Delimiter">(</span>enq make-routine!f1 <span class="Global">running-routines*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is <span class="Constant">1</span> len.running-routines*<span class="Delimiter">))</span>
<span class="Comment">; blocked routine waiting for location 23 to change</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!f2
  <span class="Delimiter">(</span>= rep.routine!sleep <span class="Delimiter">'(</span>until-location-changes <span class="Constant">23</span> <span class="Constant">0</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>set <span class="Global">sleeping-routines*</span>.routine<span class="Delimiter">))</span>
<span class="Comment">; change memory location 23</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.23</span> <span class="Constant">1</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>update-scheduler-state<span class="Delimiter">)</span>
<span class="Comment">; routine unblocked</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">2</span> len.running-routines*<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler unblocks routines blocked on locations&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-skip&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Comment">; running-routines* is empty</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>empty <span class="Global">running-routines*</span><span class="Delimiter">))</span>
<span class="Comment">; sleeping routine</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!f1
  <span class="Delimiter">(</span>= rep.routine!sleep <span class="Delimiter">'(</span>for-some-cycles <span class="Constant">34</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>set <span class="Global">sleeping-routines*</span>.routine<span class="Delimiter">))</span>
<span class="Comment">; long time left for it to wake up</span>
<span class="Delimiter">(</span>= <span class="Global">curr-cycle*</span> <span class="Constant">0</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>update-scheduler-state<span class="Delimiter">)</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is <span class="Global">curr-cycle*</span> <span class="Constant">35</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> len.running-routines*<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler skips ahead to earliest sleeping routines when nothing to run&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-deadlock&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>empty <span class="Global">running-routines*</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>empty <span class="Global">completed-routines*</span><span class="Delimiter">))</span>
<span class="Comment">; blocked routine</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!f1
  <span class="Delimiter">(</span>= rep.routine!sleep <span class="Delimiter">'(</span>until-location-changes <span class="Constant">23</span> <span class="Constant">0</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>set <span class="Global">sleeping-routines*</span>.routine<span class="Delimiter">))</span>
<span class="Comment">; location it's waiting on is 'unchanged'</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.23</span> <span class="Constant">0</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>update-scheduler-state<span class="Delimiter">)</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>~empty <span class="Global">completed-routines*</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (prn completed-routines*)</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine <span class="Global">completed-routines*</span><span class="Constant">.0</span>
  <span class="Delimiter">(</span>when <span class="Delimiter">(</span>~posmatch <span class="Constant">&quot;deadlock&quot;</span> rep.routine!error<span class="Delimiter">)</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler detects deadlock&quot;</span><span class="Delimiter">)))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;scheduler-deadlock2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Comment">; running-routines* is empty</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>empty <span class="Global">running-routines*</span><span class="Delimiter">))</span>
<span class="Comment">; blocked routine</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!f1
  <span class="Delimiter">(</span>= rep.routine!sleep <span class="Delimiter">'(</span>until-location-changes <span class="Constant">23</span> <span class="Constant">0</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>set <span class="Global">sleeping-routines*</span>.routine<span class="Delimiter">))</span>
<span class="Comment">; but is about to become ready</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.23</span> <span class="Constant">1</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>update-scheduler-state<span class="Delimiter">)</span>
<span class="Delimiter">(</span>when <span class="Delimiter">(</span>~empty <span class="Global">completed-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - scheduler ignores sleeping but ready threads when detecting deadlock&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;sleep&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>sleep for-some-cycles:literal <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1 <span class="Delimiter">'</span>f2<span class="Delimiter">)</span>
<span class="Delimiter">(</span>check-trace-contents <span class="Constant">&quot;scheduler handles sleeping routines&quot;</span>
  <span class="Delimiter">'((</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 0&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;sleeping until 2&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;pushing f1 to sleep queue&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f2 0&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f2 1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;waking up f1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 2&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;sleep-long&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>sleep for-some-cycles:literal <span class="MuConstant">20</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1 <span class="Delimiter">'</span>f2<span class="Delimiter">)</span>
<span class="Delimiter">(</span>check-trace-contents <span class="Constant">&quot;scheduler progresses sleeping routines when there are no routines left to run&quot;</span>
  <span class="Delimiter">'((</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 0&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;sleeping until 21&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;pushing f1 to sleep queue&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f2 0&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f2 1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;schedule&quot;</span> <span class="Constant">&quot;waking up f1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 1&quot;</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Constant">&quot;run&quot;</span> <span class="Constant">&quot;f1 2&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;sleep-location&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Comment">; waits for memory location 1 to be set, before computing its successor</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>sleep until-location-changes:literal <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>sleep for-some-cycles:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; set to value</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot;)))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1 <span class="Delimiter">'</span>f2<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn int-canon.memory*)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>  <span class="Comment">; successor of value</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - sleep can block on a memory location&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;sleep-scoped-location&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Comment">; waits for memory location 1 to be changed, before computing its successor</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">10</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; array of locals</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> copy <span class="MuConstant">10</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; really location 12</span></span>
      <span class="Mu"><span class="Delimiter">(</span>sleep until-location-changes:literal <span class="Constant">1</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> add <span class="Constant">1</span>:integer <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>sleep for-some-cycles:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">12</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; set to value</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1 <span class="Delimiter">'</span>f2<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.13</span> <span class="Constant">4</span><span class="Delimiter">)</span>  <span class="Comment">; successor of value</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - sleep can block on a scoped memory location&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;fork&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>fork f2:fn<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - fork works&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;fork-with-args&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>fork f2:fn <span class="MuConstant">nil</span>:literal <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - fork can pass args&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;fork-copies-args&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>x:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>fork f2:fn <span class="MuConstant">nil</span>:literal x:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>x:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; should be ignored</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f2 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>f1<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - fork passes args by value&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;fork-global&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer/raw <span class="Op">&lt;-</span> copy <span class="Constant">2</span>:integer/space:global<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>fork f1:fn default-space:space-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>awhen rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">memory*</span><span class="Constant">.1</span> <span class="Constant">4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - fork can take a space of global variables to access&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; The scheduler needs to keep track of the call stack for each routine.</span>
<span class="Comment">; Eventually we'll want to save this information in mu's address space itself,</span>
<span class="Comment">; along with the types array, the magic buffers for args and oargs, and so on.</span>
<span class="Comment">;</span>
<span class="Comment">; Eventually we want the right stack-management primitives to build delimited</span>
<span class="Comment">; continuations in mu.</span>

<span class="Comment">; Routines can throw errors.</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;array-bounds-check&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">23</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> index <span class="Constant">1</span>:integer-array <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine <span class="Delimiter">(</span>car <span class="Global">completed-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>no rep.routine!error<span class="Delimiter">)</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'index' throws an error if out of bounds&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 20</span>

<span class="Delimiter">(</span>section <span class="Constant">100</span>

<span class="SalientComment">;; Synchronization</span>
<span class="Comment">;</span>
<span class="Comment">; Mu synchronizes using channels rather than locks, like Erlang and Go.</span>
<span class="Comment">;</span>
<span class="Comment">; The two ends of a channel will usually belong to different routines, but</span>
<span class="Comment">; each end should only be used by a single one. Don't try to read from or</span>
<span class="Comment">; write to it from multiple routines at once.</span>
<span class="Comment">;</span>
<span class="Comment">; To avoid locking, writer and reader will never write to the same location.</span>
<span class="Comment">; So channels will include fields in pairs, one for the writer and one for the</span>
<span class="Comment">; reader.</span>

<span class="Comment">; The core circular buffer contains values at index 'first-full' up to (but</span>
<span class="Comment">; not including) index 'first-empty'. The reader always modifies it at</span>
<span class="Comment">; first-full, while the writer always modifies it at first-empty.</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-new&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-full:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-free:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Constant">0</span> <span class="Global">memory*</span><span class="Constant">.2</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Constant">0</span> <span class="Global">memory*</span><span class="Constant">.3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'init-channel' initializes 'first-full and 'first-free to 0&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-write&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-full:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-free:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (prn function*!write)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;array-len&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;jump&quot;)))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;reply&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="CommentedCode">;? (prn canon.memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Constant">0</span> <span class="Global">memory*</span><span class="Constant">.5</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'write' enqueues item to channel&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-read&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:tagged-value <span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> maybe-coerce <span class="Constant">5</span>:tagged-value integer:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-full:offset<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">9</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-free:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;array-len&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn int-canon.memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.7</span> <span class="Constant">34</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'read' returns written value&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Global">memory*</span><span class="Constant">.8</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Global">memory*</span><span class="Constant">.9</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'read' dequeues item from channel&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-write-wrap&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Comment">; channel with 1 slot</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Comment">; write a value</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Comment">; first-free will now be 1</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-free:offset<span class="Delimiter">)</span></span>
      <span class="Comment">; read one value</span>
      <span class="Mu"><span class="Delimiter">(</span>_ <span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span></span>
      <span class="Comment">; write a second value; verify that first-free wraps around to 0.</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-free:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;array-len&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn canon.memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Global">memory*</span><span class="Constant">.5</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Constant">0</span> <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'write' can wrap pointer back to start&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-read-wrap&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Comment">; channel with 1 slot</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Comment">; write a value</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Comment">; read one value</span>
      <span class="Mu"><span class="Delimiter">(</span>_ <span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span></span>
      <span class="Comment">; first-full will now be 1</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-full:offset<span class="Delimiter">)</span></span>
      <span class="Comment">; write a second value</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Comment">; read second value; verify that first-full wraps around to 0.</span>
      <span class="Mu"><span class="Delimiter">(</span>_ <span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> get <span class="Constant">1</span>:channel-address/deref first-full:offset<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj blacklist '(&quot;sz&quot; &quot;m&quot; &quot;setm&quot; &quot;addr&quot; &quot;array-len&quot; &quot;cvt0&quot; &quot;cvt1&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn canon.memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Global">memory*</span><span class="Constant">.5</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is <span class="Constant">0</span> <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'read' can wrap pointer back to start&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-new-empty-not-full&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:boolean <span class="Op">&lt;-</span> empty? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:boolean <span class="Op">&lt;-</span> full? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is t <span class="Global">memory*</span><span class="Constant">.2</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is nil <span class="Global">memory*</span><span class="Constant">.3</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - a new channel is always empty, never full&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-write-not-empty&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> empty? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> full? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is nil <span class="Global">memory*</span><span class="Constant">.5</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is nil <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - a channel after writing is never empty&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-write-full&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> empty? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> full? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is nil <span class="Global">memory*</span><span class="Constant">.5</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is t <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - a channel after writing may be full&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-read-not-full&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>_ <span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> empty? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> full? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is nil <span class="Global">memory*</span><span class="Constant">.5</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is nil <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - a channel after reading is never full&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-read-empty&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>_ <span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:boolean <span class="Op">&lt;-</span> empty? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:boolean <span class="Op">&lt;-</span> full? <span class="Constant">1</span>:channel-address/deref<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is t <span class="Global">memory*</span><span class="Constant">.5</span><span class="Delimiter">)</span>
        <span class="Delimiter">(</span>~is nil <span class="Global">memory*</span><span class="Constant">.6</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - a channel after reading may be empty&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; The key property of channels; writing to a full channel blocks the current</span>
<span class="Comment">; routine until it creates space. Ditto reading from an empty channel.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-read-block&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
      <span class="Comment">; channel is empty, but receives a read</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:tagged-value <span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn int-canon.memory*)</span>
<span class="CommentedCode">;? (prn sleeping-routines*)</span>
<span class="CommentedCode">;? (prn completed-routines*)</span>
<span class="Comment">; read should cause the routine to sleep, and</span>
<span class="Comment">; the sole sleeping routine should trigger the deadlock detector</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine <span class="Delimiter">(</span>car <span class="Global">completed-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>when <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>no routine<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>no rep.routine!error<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>~posmatch <span class="Constant">&quot;deadlock&quot;</span> rep.routine!error<span class="Delimiter">))</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'read' on empty channel blocks (puts the routine to sleep until the channel gets data)&quot;</span><span class="Delimiter">)))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-write-block&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">1</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">34</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:tagged-value <span class="Op">&lt;-</span> save-type <span class="Constant">2</span>:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
      <span class="Comment">; channel has capacity 1, but receives a second write</span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address <span class="Constant">3</span>:tagged-value<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;schedule&quot; &quot;addr&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn int-canon.memory*)</span>
<span class="CommentedCode">;? (prn running-routines*)</span>
<span class="CommentedCode">;? (prn sleeping-routines*)</span>
<span class="CommentedCode">;? (prn completed-routines*)</span>
<span class="Comment">; second write should cause the routine to sleep, and</span>
<span class="Comment">; the sole sleeping routine should trigger the deadlock detector</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine <span class="Delimiter">(</span>car <span class="Global">completed-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>when <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>no routine<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>no rep.routine!error<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>~posmatch <span class="Constant">&quot;deadlock&quot;</span> rep.routine!error<span class="Delimiter">))</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'write' on full channel blocks (puts the routine to sleep until the channel gets data)&quot;</span><span class="Delimiter">)))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-handoff&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function consumer <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>chan:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; create a channel</span></span>
      <span class="Mu"><span class="Delimiter">(</span>fork producer:fn <span class="MuConstant">nil</span>:literal chan:channel-address<span class="Delimiter">)</span>  <span class="Comment">; fork a routine to produce a value in it</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:tagged-value/raw <span class="Op">&lt;-</span> read chan:channel-address<span class="Delimiter">)</span>  <span class="Comment">; wait for input on channel</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function producer <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>n:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>ochan:channel-address <span class="Op">&lt;-</span> <span class="Identifier">next-input</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>x:tagged-value <span class="Op">&lt;-</span> save-type n:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>ochan:channel-address/deref <span class="Op">&lt;-</span> write ochan:channel-address x:tagged-value<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;schedule&quot; &quot;run&quot; &quot;addr&quot;)))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;-&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>consumer<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">24</span> <span class="Global">memory*</span><span class="Constant">.2</span><span class="Delimiter">)</span>  <span class="Comment">; location 1 contains tagged-value x above</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - channels are meant to be shared between routines&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;channel-handoff-routine&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function consumer <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address <span class="Op">&lt;-</span> init-channel <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span>  <span class="Comment">; create a channel</span></span>
      <span class="Mu"><span class="Delimiter">(</span>fork producer:fn default-space:space-address<span class="Delimiter">)</span>  <span class="Comment">; pass it as a global to another routine</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:tagged-value/raw <span class="Op">&lt;-</span> read <span class="Constant">1</span>:channel-address<span class="Delimiter">)</span>  <span class="Comment">; wait for input on channel</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function producer <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>n:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">24</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span>x:tagged-value <span class="Op">&lt;-</span> save-type n:integer<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:channel-address/space:global/deref <span class="Op">&lt;-</span> write <span class="Constant">1</span>:channel-address/space:global x:tagged-value<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>consumer<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">24</span> <span class="Global">memory*</span><span class="Constant">.2</span><span class="Delimiter">)</span>  <span class="Comment">; location 1 contains tagged-value x above</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - channels are meant to be shared between routines&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 100</span>

<span class="Delimiter">(</span>section <span class="Constant">10</span>

<span class="SalientComment">;; Separating concerns</span>
<span class="Comment">;</span>
<span class="Comment">; Lightweight tools can also operate on quoted lists of statements surrounded</span>
<span class="Comment">; by square brackets. In the example below, we mimic Go's 'defer' keyword</span>
<span class="Comment">; using 'convert-quotes'. It lets us write code anywhere in a function, but</span>
<span class="Comment">; have it run just before the function exits. Great for keeping code to</span>
<span class="Comment">; reclaim memory or other resources close to the code to allocate it. (C++</span>
<span class="Comment">; programmers know this as RAII.) We'll use 'defer' when we build a memory</span>
<span class="Comment">; deallocation routine like C's 'free'.</span>
<span class="Comment">;</span>
<span class="Comment">; More powerful reorderings are also possible like in Literate Programming or</span>
<span class="Comment">; Aspect-Oriented Programming; one advantage of prohibiting arbitrarily nested</span>
<span class="Comment">; code is that we can naturally name 'join points' wherever we want.</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-quotes-defer&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-quotes
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span>defer <span class="Delimiter">[</span></span>
                       <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">6</span>:literal<span class="Delimiter">)</span></span>
                     <span class="Delimiter">])</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">5</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">6</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-quotes can handle 'defer'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-quotes-defer-reply&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-quotes
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span>defer <span class="Delimiter">[</span></span>
                       <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                     <span class="Delimiter">])</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-quotes inserts code at early exits&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-quotes-defer-reply-arg&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-quotes
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span>defer <span class="Delimiter">[</span></span>
                       <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                     <span class="Delimiter">])</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span> <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span>prepare-reply <span class="MuConstant">2</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Identifier">reply</span><span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-quotes inserts code at early exits&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;convert-quotes-label&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>convert-quotes
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
              foo
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">5</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
            foo
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">5</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - convert-quotes can handle labels&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>before label1 <span class="Delimiter">[</span></span>
     <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
    <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">before*</span>!label1<span class="Delimiter">)</span>
          <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
            <span class="Delimiter">(</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'before' records fragments of code to insert before labels&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' can insert fragments before labels&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>before label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>before label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">before*</span>!label1<span class="Delimiter">)</span>
          <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
            <span class="Delimiter">(</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))</span></span>
            <span class="Delimiter">(</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'before' records fragments in order&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' can insert multiple fragments in order before label&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-scoped&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>before f/label1 <span class="Delimiter">[</span>  <span class="Comment">; label1 only inside function f</span></span>
     <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
    <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))</span></span>
            <span class="Delimiter">'</span>f<span class="Delimiter">)</span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' can insert fragments before labels just in specified functions&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-scoped2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>before f/label1 <span class="Delimiter">[</span>  <span class="Comment">; label1 only inside function f</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' ignores labels not in specified functions&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;after&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>after label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">after*</span>!label1<span class="Delimiter">)</span>
          <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
            <span class="Delimiter">(</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'after' records fragments of code to insert after labels&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' can insert fragments after labels&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;after-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>after label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">after*</span>!label1<span class="Delimiter">)</span>
          <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
            <span class="Delimiter">(</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))</span></span>
            <span class="Delimiter">(</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'after' records fragments in *reverse* order&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' can insert multiple fragments in order after label&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-after&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>before label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">and</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">before*</span>!label1<span class="Delimiter">)</span>
               <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
                 <span class="Delimiter">(</span>
                   <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))))</span></span>
         <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">after*</span>!label1<span class="Delimiter">)</span>
               <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
                 <span class="Delimiter">(</span>
                   <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'before' and 'after' fragments work together&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' can insert multiple fragments around label&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-after-multiple&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>before label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>before label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">before*</span>!label1<span class="Delimiter">)</span>
              <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
                <span class="Delimiter">(</span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))</span></span>
                <span class="Delimiter">(</span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))))</span></span>
        <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>as cons <span class="Global">after*</span>!label1<span class="Delimiter">)</span>
              <span class="Delimiter">'(</span><span class="Comment">; fragment</span>
                <span class="Delimiter">(</span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">))</span></span>
                <span class="Delimiter">(</span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - multiple 'before' and 'after' fragments at once&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>insert-code
            <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
              <span class="Mu">label1</span>
              <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
          <span class="Mu"><span class="Delimiter">'((</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu">label1</span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">6</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">7</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
            <span class="Mu"><span class="Delimiter">(</span><span class="Constant">8</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'insert-code' can insert multiple fragments around label - 2&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-after-independent&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span><span class="Normal">do</span>
            <span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>add-code
              <span class="Mu"><span class="Delimiter">'((</span>before label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])</span>
                <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])</span>
                <span class="Mu"><span class="Delimiter">(</span>before label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])</span>
                <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])))</span>
            <span class="Delimiter">(</span>list <span class="Global">before*</span>!label1 <span class="Global">after*</span>!label1<span class="Delimiter">))</span>
          <span class="Delimiter">(</span><span class="Normal">do</span>
            <span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>add-code
              <span class="Mu"><span class="Delimiter">'((</span>before label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])</span>
                <span class="Mu"><span class="Delimiter">(</span>before label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])</span>
                <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])</span>
                <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
                  <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
                 <span class="Delimiter">])))</span>
            <span class="Delimiter">(</span>list <span class="Global">before*</span>!label1 <span class="Global">after*</span>!label1<span class="Delimiter">)))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - order matters between 'before' and between 'after' fragments, but not *across* 'before' and 'after' fragments&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-after-braces&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">function*</span> <span class="Delimiter">(</span>table<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>after label1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f1 <span class="Delimiter">[</span></span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu">label1</span>
      }
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;cn0&quot;)))</span>
<span class="Delimiter">(</span>freeze <span class="Global">function*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">function*</span>!f1
          <span class="Mu"><span class="Delimiter">'(</span>label1</span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - before/after works inside blocks&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;before-after-any-order&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">function*</span> <span class="Delimiter">(</span>table<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      { <span class="CommentedCode">begin</span>
        <span class="Mu">label1</span>
      }
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>after label1 <span class="Delimiter">[</span></span>
       <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>freeze <span class="Global">function*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">function*</span>!f1
          <span class="Mu"><span class="Delimiter">'(</span>label1</span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - before/after can come after the function they need to modify&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;multiple-defs&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">function*</span> <span class="Delimiter">(</span>table<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>freeze <span class="Global">function*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">function*</span>!f1
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))</span></span>
            <span class="Mu"><span class="Delimiter">(((</span><span class="Constant">1</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - multiple 'def' of the same function add clauses&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;def!&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">traces*</span> <span class="Delimiter">(</span>queue<span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">function*</span> <span class="Delimiter">(</span>table<span class="Delimiter">))</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])</span>
    <span class="Mu"><span class="Delimiter">(</span>function! f1 <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> copy <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>freeze <span class="Global">function*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">function*</span>!f1
          <span class="Mu"><span class="Delimiter">'((((</span><span class="Constant">2</span> integer<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>copy<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">0</span> literal<span class="Delimiter">)))))</span></span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'def!' clears all previous clauses&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 10</span>

<span class="SalientComment">;; ---</span>

<span class="Delimiter">(</span>section <span class="Constant">100</span>  <span class="Comment">; string utilities</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-new&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new string:literal <span class="MuConstant">5</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso rep.routine!alloc <span class="Delimiter">(</span>+ before <span class="Constant">5</span> <span class="Constant">1</span><span class="Delimiter">))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' allocates arrays of bytes for strings&quot;</span><span class="Delimiter">))))</span>

<span class="Comment">; Convenience: initialize strings using string literals</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-literal&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;hello&quot;</span><span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> routine make-routine!main
  <span class="Delimiter">(</span>enq routine <span class="Global">running-routines*</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span><span class="Normal">let</span> before rep.routine!alloc
<span class="CommentedCode">;?     (set dump-trace*)</span>
<span class="CommentedCode">;?     (= dump-trace* (obj whitelist '(&quot;schedule&quot; &quot;run&quot; &quot;addr&quot;)))</span>
    <span class="Delimiter">(</span>run<span class="Delimiter">)</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso rep.routine!alloc <span class="Delimiter">(</span>+ before <span class="Constant">5</span> <span class="Constant">1</span><span class="Delimiter">))</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' allocates arrays of bytes for string literals&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains-array before <span class="Constant">&quot;hello&quot;</span><span class="Delimiter">)</span>
      <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'new' initializes allocated memory to string literal&quot;</span><span class="Delimiter">))))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;strcat&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;hello,&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot; world!&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:string-address <span class="Op">&lt;-</span> strcat <span class="Constant">1</span>:string-address <span class="Constant">2</span>:string-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains-array <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">&quot;hello, world!&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'strcat' concatenates strings&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;interpolate&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;hello, _!&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:string-address <span class="Op">&lt;-</span> interpolate <span class="Constant">1</span>:string-address <span class="Constant">2</span>:string-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains-array <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">&quot;hello, abc!&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'interpolate' splices strings&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;interpolate-empty&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;hello!&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:string-address <span class="Op">&lt;-</span> interpolate <span class="Constant">1</span>:string-address <span class="Constant">2</span>:string-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains-array <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">&quot;hello!&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'interpolate' without underscore returns template&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;interpolate-at-start&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;_, hello!&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:string-address <span class="Op">&lt;-</span> interpolate <span class="Constant">1</span>:string-address <span class="Constant">2</span>:string-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains-array <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">&quot;abc, hello&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'interpolate' splices strings at start&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;interpolate-at-end&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;hello, _&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:string-address <span class="Op">&lt;-</span> interpolate <span class="Constant">1</span>:string-address <span class="Constant">2</span>:string-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains-array <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">&quot;hello, abc&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'interpolate' splices strings at start&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;interpolate-varargs&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;hello, _, _, and _!&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">3</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;def&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">4</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;ghi&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">5</span>:string-address <span class="Op">&lt;-</span> interpolate <span class="Constant">1</span>:string-address <span class="Constant">2</span>:string-address <span class="Constant">3</span>:string-address <span class="Constant">4</span>:string-address<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot; &quot;array-info&quot;)))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (quit)</span>
<span class="CommentedCode">;? (up i 1 (+ 1 (memory* memory*.5))</span>
<span class="CommentedCode">;?   (prn (memory* (+ memory*.5 i))))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains-array <span class="Global">memory*</span><span class="Constant">.5</span> <span class="Constant">&quot;hello, abc, def, and ghi!&quot;</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'interpolate' splices in any number of strings&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;a/b&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">1</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' finds first location of a character&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next-empty&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">0</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' finds first location of a character&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next-initial&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;/abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">0</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' handles prefix match&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next-final&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc/&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*.2)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">3</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' handles suffix match&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next-missing&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn memory*.2)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">3</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' handles no match&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next-invalid-index&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">4</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="CommentedCode">;? (prn memory*.2)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' skips invalid index (past end of string)&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next-first&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;ab/c/&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">0</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">2</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' finds first of multiple options&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-find-next-second&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;ab/c/&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:integer <span class="Op">&lt;-</span> find-next <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">))</span> <span class="MuConstant">3</span>:literal<span class="Delimiter">)</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'find-next' finds second of multiple options&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-split&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;a/b&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address-array-address <span class="Op">&lt;-</span> split <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">)))</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> base <span class="Global">memory*</span><span class="Constant">.2</span>
<span class="CommentedCode">;?   (prn base &quot; &quot; memory*.base)</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.base <span class="Constant">2</span><span class="Delimiter">)</span>
<span class="CommentedCode">;?           (do1 nil prn.111)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">1</span><span class="Delimiter">))</span> <span class="Constant">&quot;a&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;?           (do1 nil prn.111)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">2</span><span class="Delimiter">))</span> <span class="Constant">&quot;b&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'split' cuts string at delimiter&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-split2&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;a/b/c&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address-array-address <span class="Op">&lt;-</span> split <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">)))</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> base <span class="Global">memory*</span><span class="Constant">.2</span>
<span class="CommentedCode">;?   (prn base &quot; &quot; memory*.base)</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.base <span class="Constant">3</span><span class="Delimiter">)</span>
<span class="CommentedCode">;?           (do1 nil prn.111)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">1</span><span class="Delimiter">))</span> <span class="Constant">&quot;a&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;?           (do1 nil prn.111)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">2</span><span class="Delimiter">))</span> <span class="Constant">&quot;b&quot;</span><span class="Delimiter">)</span>
<span class="CommentedCode">;?           (do1 nil prn.111)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">3</span><span class="Delimiter">))</span> <span class="Constant">&quot;c&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'split' cuts string at two delimiters&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-split-missing&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address-array-address <span class="Op">&lt;-</span> split <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">)))</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> base <span class="Global">memory*</span><span class="Constant">.2</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.base <span class="Constant">1</span><span class="Delimiter">)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">1</span><span class="Delimiter">))</span> <span class="Constant">&quot;abc&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'split' handles missing delimiter&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-split-empty&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address-array-address <span class="Op">&lt;-</span> split <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">)))</span></span>
     <span class="Delimiter">])))</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;run&quot;)))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> base <span class="Global">memory*</span><span class="Constant">.2</span>
<span class="CommentedCode">;?   (prn base &quot; &quot; memory*.base)</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.base <span class="Constant">0</span><span class="Delimiter">)</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'split' handles empty string&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;string-split-empty-piece&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Mu"><span class="Delimiter">'((</span>function main <span class="Delimiter">[</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">1</span>:string-address <span class="Op">&lt;-</span> new <span class="Constant">&quot;a/b//c&quot;</span><span class="Delimiter">)</span></span>
      <span class="Mu"><span class="Delimiter">(</span><span class="Constant">2</span>:string-address-array-address <span class="Op">&lt;-</span> split <span class="Constant">1</span>:string-address <span class="Delimiter">((</span><span class="MuConstant">#\/</span> literal<span class="Delimiter">)))</span></span>
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span>run <span class="Delimiter">'</span>main<span class="Delimiter">)</span>
<span class="Delimiter">(</span>each routine <span class="Global">completed-routines*</span>
  <span class="Delimiter">(</span>aif rep.routine!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">let</span> base <span class="Global">memory*</span><span class="Constant">.2</span>
  <span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span><span class="Normal">or</span> <span class="Delimiter">(</span>~is <span class="Global">memory*</span>.base <span class="Constant">4</span><span class="Delimiter">)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">1</span><span class="Delimiter">))</span> <span class="Constant">&quot;a&quot;</span><span class="Delimiter">)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">2</span><span class="Delimiter">))</span> <span class="Constant">&quot;b&quot;</span><span class="Delimiter">)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">3</span><span class="Delimiter">))</span> <span class="Constant">&quot;&quot;</span><span class="Delimiter">)</span>
          <span class="Delimiter">(</span>~memory-contains-array <span class="Delimiter">(</span><span class="Global">memory*</span> <span class="Delimiter">(</span>+ base <span class="Constant">4</span><span class="Delimiter">))</span> <span class="Constant">&quot;c&quot;</span><span class="Delimiter">))</span>
    <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'split' cuts string at two delimiters&quot;</span><span class="Delimiter">)))</span>

<span class="Delimiter">)</span>  <span class="Comment">; section 100 for string utilities</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>new-trace <span class="Constant">&quot;parse-and-record&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>add-code
  <span class="Delimiter">'((</span>and-record foo <span class="Delimiter">[</span>
      x:string
      y:integer
      z:boolean
     <span class="Delimiter">])))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Global">type*</span>!foo <span class="Delimiter">(</span>obj size <span class="Constant">3</span>  and-record t  elems <span class="Delimiter">'((</span>string<span class="Delimiter">)</span> <span class="Delimiter">(</span>integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>boolean<span class="Delimiter">))</span>  <span class="Normal">fields</span> <span class="Delimiter">'(</span>x y z<span class="Delimiter">)))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'add-code' can add new and-records&quot;</span><span class="Delimiter">))</span>

<span class="SalientComment">;; unit tests for various helpers</span>

<span class="Comment">; tokenize-args</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== tokenize-args&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>assert:iso <span class="Delimiter">'((</span>a b<span class="Delimiter">)</span> <span class="Delimiter">(</span>c d<span class="Delimiter">))</span>
            <span class="Delimiter">(</span>tokenize-arg <span class="Delimiter">'</span>a:b/c:d<span class="Delimiter">))</span>
<span class="Comment">; numbers are not symbols</span>
<span class="Delimiter">(</span>assert:iso <span class="Delimiter">'((</span>a b<span class="Delimiter">)</span> <span class="Delimiter">(</span><span class="Constant">1</span> d<span class="Delimiter">))</span>
            <span class="Delimiter">(</span>tokenize-arg <span class="Delimiter">'</span>a:b/1:d<span class="Delimiter">))</span>
<span class="Comment">; special symbols are skipped</span>
<span class="Mu"><span class="Delimiter">(</span>assert:iso <span class="Delimiter">'</span><span class="Op">&lt;-</span></span>
            <span class="Mu"><span class="Delimiter">(</span>tokenize-arg <span class="Delimiter">'</span><span class="Op">&lt;-</span><span class="Delimiter">))</span></span>
<span class="Delimiter">(</span>assert:iso <span class="Delimiter">'</span>_
            <span class="Delimiter">(</span>tokenize-arg <span class="Delimiter">'</span>_<span class="Delimiter">))</span>

<span class="Comment">; idempotent</span>
<span class="Delimiter">(</span>assert:iso <span class="Delimiter">(</span>tokenize-arg:tokenize-arg <span class="Delimiter">'</span>a:b/c:d<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>tokenize-arg              <span class="Delimiter">'</span>a:b/c:d<span class="Delimiter">))</span>

<span class="Comment">; support labels</span>
<span class="Mu"><span class="Delimiter">(</span>assert:iso <span class="Delimiter">'((((</span>default-space space-address<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>new<span class="Delimiter">))</span> <span class="Delimiter">((</span>space literal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">30</span> literal<span class="Delimiter">)))</span></span>
              foo<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>tokenize-args
              <span class="Mu"><span class="Delimiter">'((</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
                foo<span class="Delimiter">)))</span>

<span class="Comment">; support braces</span>
<span class="Mu"><span class="Delimiter">(</span>assert:iso <span class="Delimiter">'((((</span>default-space space-address<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>new<span class="Delimiter">))</span> <span class="Delimiter">((</span>space literal<span class="Delimiter">))</span> <span class="Delimiter">((</span><span class="MuConstant">30</span> literal<span class="Delimiter">)))</span></span>
              foo
              { <span class="CommentedCode">begin</span>
                bar
                <span class="Mu"><span class="Delimiter">(((</span>a b<span class="Delimiter">))</span> <span class="Op">&lt;-</span> <span class="Delimiter">((</span>op<span class="Delimiter">))</span> <span class="Delimiter">((</span>c d<span class="Delimiter">))</span> <span class="Delimiter">((</span>e f<span class="Delimiter">)))</span></span>
              }<span class="Delimiter">)</span>
            <span class="Delimiter">(</span>tokenize-args
              <span class="Mu"><span class="Delimiter">'((</span>default-space:space-address <span class="Op">&lt;-</span> new space:literal <span class="MuConstant">30</span>:literal<span class="Delimiter">)</span></span>
                foo
                { <span class="CommentedCode">begin</span>
                  bar
                  <span class="Mu"><span class="Delimiter">(</span>a:b <span class="Op">&lt;-</span> op c:d e:f<span class="Delimiter">)</span></span>
                }<span class="Delimiter">)))</span>

<span class="Comment">; space</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== space&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Constant">0</span> <span class="Delimiter">(</span>space <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'space' is 0 by default&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Constant">1</span> <span class="Delimiter">(</span>space <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>space <span class="Constant">1</span><span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'space' picks up space when available&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'</span>global <span class="Delimiter">(</span>space <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>space global<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'space' understands routine-global space&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; absolutize</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== absolutize&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Delimiter">(</span>absolutize <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'absolutize' works without routine&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Delimiter">(</span>absolutize <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'absolutize' works without default-space&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= rep.routine*!call-stack.0!default-space <span class="Constant">10</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.10</span> <span class="Constant">5</span><span class="Delimiter">)</span>  <span class="Comment">; bounds check for default-space</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">15</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>raw<span class="Delimiter">))</span>
          <span class="Delimiter">(</span>absolutize <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'absolutize' works with default-space&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>absolutize <span class="Delimiter">'((</span><span class="Constant">5</span> integer<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~posmatch <span class="Constant">&quot;no room&quot;</span> rep.routine*!error<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'absolutize' checks against default-space bounds&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span>_ integer<span class="Delimiter">))</span> <span class="Delimiter">(</span>absolutize <span class="Delimiter">'((</span>_ integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'absolutize' passes dummy args right through&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.20</span> <span class="Constant">5</span><span class="Delimiter">)</span>  <span class="Comment">; pretend array</span>
<span class="Delimiter">(</span>= rep.routine*!globals <span class="Constant">20</span><span class="Delimiter">)</span>  <span class="Comment">; provide it to routine global</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">22</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>raw<span class="Delimiter">))</span>
          <span class="Delimiter">(</span>absolutize <span class="Delimiter">'((</span><span class="Constant">1</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>space global<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'absolutize' handles variables in the global space&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; deref</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== deref&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">4</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span>
          <span class="Delimiter">(</span>deref <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address<span class="Delimiter">)</span>
                   <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'deref' handles simple addresses&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span>
          <span class="Delimiter">(</span>deref <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address<span class="Delimiter">)</span>
                   <span class="Delimiter">(</span>deref<span class="Delimiter">)</span>
                   <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'deref' deletes just one deref&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.4</span> <span class="Constant">5</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">5</span> integer<span class="Delimiter">))</span>
          <span class="Delimiter">(</span>deref:deref <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address-address<span class="Delimiter">)</span>
                         <span class="Delimiter">(</span>deref<span class="Delimiter">)</span>
                         <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'deref' can be chained&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">'((</span><span class="Constant">5</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>foo<span class="Delimiter">))</span>
          <span class="Delimiter">(</span>deref:deref <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address-address<span class="Delimiter">)</span>
                         <span class="Delimiter">(</span>deref<span class="Delimiter">)</span>
                         <span class="Delimiter">(</span>foo<span class="Delimiter">)</span>
                         <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'deref' skips junk&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; addr</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== addr&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> nil<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn 111)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - directly addressed operands are their own address&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer-address<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - directly addressed operands are their own address - 2&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="MuConstant">4</span> literal<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'addr' doesn't understand literals&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (prn 201)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.4</span> <span class="Constant">23</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn 202)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">23</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'addr' works with indirectly-addressed 'deref'&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">4</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">23</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'addr' works with multiple 'deref'&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - directly addressed operands are their own address inside routines&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer-address<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - directly addressed operands are their own address inside routines - 2&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="MuConstant">4</span> literal<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'addr' doesn't understand literals inside routines&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.4</span> <span class="Constant">23</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">23</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'addr' works with indirectly-addressed 'deref' inside routines&quot;</span><span class="Delimiter">))</span>

<span class="CommentedCode">;? (prn 301)</span>
<span class="Delimiter">(</span>= rep.routine*!call-stack.0!default-space <span class="Constant">10</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn 302)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.10</span> <span class="Constant">5</span><span class="Delimiter">)</span>  <span class="Comment">; bounds check for default-space</span>
<span class="CommentedCode">;? (prn 303)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">15</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - directly addressed operands in routines add default-space&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">15</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer-address<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - directly addressed operands in routines add default-space - 2&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">15</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="MuConstant">4</span> literal<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'addr' doesn't understand literals&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.15</span> <span class="Constant">23</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">23</span> <span class="Delimiter">(</span>addr <span class="Delimiter">'((</span><span class="Constant">4</span> integer-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'addr' adds default-space before 'deref', not after&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; array-len</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== array-len&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.35</span> <span class="Constant">4</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>array-len <span class="Delimiter">'((</span><span class="Constant">35</span> integer-boolean-pair-array<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'array-len'&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.34</span> <span class="Constant">35</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>array-len <span class="Delimiter">'((</span><span class="Constant">34</span> integer-boolean-pair-array-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'array-len'&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; sizeof</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== sizeof&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="CommentedCode">;? (set dump-trace*)</span>
<span class="CommentedCode">;? (prn 401)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span>_ integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on primitives&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span>_ integer-address<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on addresses&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">2</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span>_ integer-boolean-pair<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on and-records&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">3</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span>_ integer-point-pair<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on and-records with and-record fields&quot;</span><span class="Delimiter">))</span>

<span class="CommentedCode">;? (prn 410)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">34</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on primitive operands&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">1</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">34</span> integer-address<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on address operands&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">2</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">34</span> integer-boolean-pair<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on and-record operands&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">3</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">34</span> integer-point-pair<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on and-record operands with and-record fields&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">2</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">34</span> integer-boolean-pair-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on pointers to and-records&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.35</span> <span class="Constant">4</span><span class="Delimiter">)</span>  <span class="Comment">; size of array</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.34</span> <span class="Constant">35</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;sizeof&quot; &quot;array-len&quot;)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">9</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">34</span> integer-boolean-pair-array-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on pointers to arrays&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="CommentedCode">;? (prn 420)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.4</span> <span class="Constant">23</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">24</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">4</span> integer-array<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' reads array lengths from memory&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">4</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">24</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">3</span> integer-array-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' handles pointers to arrays&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.15</span> <span class="Constant">34</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">24</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">4</span> integer-array<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' reads array lengths from memory inside routines&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= rep.routine*!call-stack.0!default-space <span class="Constant">10</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.10</span> <span class="Constant">5</span><span class="Delimiter">)</span>  <span class="Comment">; bounds check for default-space</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">35</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">4</span> integer-array<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' reads array lengths from memory using default-space&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.35</span> <span class="Constant">4</span><span class="Delimiter">)</span>  <span class="Comment">; size of array</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.15</span> <span class="Constant">35</span><span class="Delimiter">)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;sizeof&quot;)))</span>
<span class="Delimiter">(</span>aif rep.routine*!error <span class="Delimiter">(</span>prn <span class="Constant">&quot;error - &quot;</span> it<span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">9</span> <span class="Delimiter">(</span>sizeof <span class="Delimiter">'((</span><span class="Constant">4</span> integer-boolean-pair-array-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'sizeof' works on pointers to arrays using default-space&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (quit)</span>

<span class="Comment">; m</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== m&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="MuConstant">4</span> literal<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' avoids reading memory for literals&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="MuConstant">4</span> offset<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' avoids reading memory for offsets&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.4</span> <span class="Constant">34</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">34</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' reads memory for simple types&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.3</span> <span class="Constant">4</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">34</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' redirects addresses&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">3</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">34</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">2</span> integer-address-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' multiply redirects addresses&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">34</span> nil<span class="Delimiter">))</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">4</span> integer-boolean-pair<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' supports compound records&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.5</span> <span class="Constant">35</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.6</span> <span class="Constant">36</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">34</span> <span class="Constant">35</span> <span class="Constant">36</span><span class="Delimiter">))</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">4</span> integer-point-pair<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' supports records with compound fields&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">34</span> <span class="Constant">35</span> <span class="Constant">36</span><span class="Delimiter">))</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">3</span> integer-point-pair-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' supports indirect access to records&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.4</span> <span class="Constant">2</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">35</span> <span class="Constant">36</span><span class="Delimiter">))</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">4</span> integer-array<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' supports access to arrays&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">35</span> <span class="Constant">36</span><span class="Delimiter">))</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">3</span> integer-array-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' supports indirect access to arrays&quot;</span><span class="Delimiter">))</span>

<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.10</span> <span class="Constant">5</span><span class="Delimiter">)</span>  <span class="Comment">; fake array</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.12</span> <span class="Constant">34</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>= rep.routine*!globals <span class="Constant">10</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~iso <span class="Constant">34</span> <span class="Delimiter">(</span>m <span class="Delimiter">'((</span><span class="Constant">1</span> integer<span class="Delimiter">)</span> <span class="Delimiter">(</span>space global<span class="Delimiter">))))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'm' supports access to per-routine globals&quot;</span><span class="Delimiter">))</span>

<span class="Comment">; setm</span>
<span class="Delimiter">(</span>prn <span class="Constant">&quot;== setm&quot;</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">4</span> integer<span class="Delimiter">))</span> <span class="Constant">34</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">34</span> <span class="Global">memory*</span><span class="Constant">.4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' writes primitives to memory&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address<span class="Delimiter">))</span> <span class="Constant">4</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">4</span> <span class="Global">memory*</span><span class="Constant">.3</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' writes addresses to memory&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">3</span> integer-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span> <span class="Constant">35</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">35</span> <span class="Global">memory*</span><span class="Constant">.4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' redirects writes&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">memory*</span><span class="Constant">.2</span> <span class="Constant">3</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">2</span> integer-address-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span> <span class="Constant">36</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~is <span class="Constant">36</span> <span class="Global">memory*</span><span class="Constant">.4</span><span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' multiply redirects writes&quot;</span><span class="Delimiter">))</span>
<span class="CommentedCode">;? (prn 505)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">4</span> integer-integer-pair<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">23</span> <span class="Constant">24</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains <span class="Constant">4</span> <span class="Delimiter">'(</span><span class="Constant">23</span> <span class="Constant">24</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' writes compound records&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>assert <span class="Delimiter">(</span>is <span class="Global">memory*</span><span class="Constant">.7</span> nil<span class="Delimiter">))</span>
<span class="CommentedCode">;? (prn 506)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">7</span> integer-point-pair<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">23</span> <span class="Constant">24</span> <span class="Constant">25</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains <span class="Constant">7</span> <span class="Delimiter">'(</span><span class="Constant">23</span> <span class="Constant">24</span> <span class="Constant">25</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' writes records with compound fields&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">4</span> integer-point-pair<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">33</span> <span class="Constant">34</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~posmatch <span class="Constant">&quot;incorrect size&quot;</span> rep.routine*!error<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' checks size of target&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>wipe <span class="Global">routine*</span><span class="Delimiter">)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">3</span> integer-point-pair-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">43</span> <span class="Constant">44</span> <span class="Constant">45</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains <span class="Constant">4</span> <span class="Delimiter">'(</span><span class="Constant">43</span> <span class="Constant">44</span> <span class="Constant">45</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' supports indirect writes to records&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">2</span> integer-point-pair-address-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">53</span> <span class="Constant">54</span> <span class="Constant">55</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains <span class="Constant">4</span> <span class="Delimiter">'(</span><span class="Constant">53</span> <span class="Constant">54</span> <span class="Constant">55</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' supports multiply indirect writes to records&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">4</span> integer-array<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">31</span> <span class="Constant">32</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains <span class="Constant">4</span> <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">31</span> <span class="Constant">32</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' writes arrays&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">3</span> integer-array-address<span class="Delimiter">)</span> <span class="Delimiter">(</span>deref<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">41</span> <span class="Constant">42</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~memory-contains <span class="Constant">4</span> <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">41</span> <span class="Constant">42</span><span class="Delimiter">))</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' supports indirect writes to arrays&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">4</span> integer-array<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">31</span> <span class="Constant">32</span> <span class="Constant">33</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~posmatch <span class="Constant">&quot;invalid array&quot;</span> rep.routine*!error<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' checks that array written is well-formed&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn 111)</span>
<span class="CommentedCode">;? (= dump-trace* (obj whitelist '(&quot;sizeof&quot; &quot;setm&quot;)))</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">4</span> integer-boolean-pair-array<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">31</span> nil <span class="Constant">32</span> nil <span class="Constant">33</span><span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>~posmatch <span class="Constant">&quot;invalid array&quot;</span> rep.routine*!error<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' checks that array of records is well-formed&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>= <span class="Global">routine*</span> make-routine!foo<span class="Delimiter">)</span>
<span class="CommentedCode">;? (prn 222)</span>
<span class="Delimiter">(</span>setm <span class="Delimiter">'((</span><span class="Constant">4</span> integer-boolean-pair-array<span class="Delimiter">))</span> <span class="Delimiter">(</span>annotate <span class="Delimiter">'</span>record <span class="Delimiter">'(</span><span class="Constant">2</span> <span class="Constant">31</span> nil <span class="Constant">32</span> nil<span class="Delimiter">)))</span>
<span class="Delimiter">(</span><span class="Normal">if</span> <span class="Delimiter">(</span>posmatch <span class="Constant">&quot;invalid array&quot;</span> rep.routine*!error<span class="Delimiter">)</span>
  <span class="Delimiter">(</span>prn <span class="Constant">&quot;F - 'setm' checks that array of records is well-formed - 2&quot;</span><span class="Delimiter">))</span>
<span class="Delimiter">(</span>wipe <span class="Global">routine*</span><span class="Delimiter">)</span>

<span class="Delimiter">(</span>reset<span class="Delimiter">)</span>  <span class="Comment">; end file with this to persist the trace for the final test</span>
</pre>
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