# Assign addresses (co-ordinates) to instructions (landmarks) in a program # (landscape). # # To build: # $ bootstrap/bootstrap translate [01]*.subx subx-params.subx survey_baremetal.subx -o survey_baremetal # # The expected input is a stream of bytes and some interspersed labels. # Comments and '==' segment headers are allowed, but names are ignored. The # emitted code will all lie in a single contiguous address range starting at # address 0x7c00. Addresses in segment headers are optional. If provided, this # program will insert padding in the output until the desired address is # reached. # # $ cat x # == code # l1: # aa bb l1/imm8 # cc dd l2/disp32 # l2: # ee foo/imm32 # == data 0x7c10 # foo: # 34 # # The output is a list of labels and their computed addresses. # # $ cat x |bootstrap/bootstrap run survey_baremetal # 0x7c00 l1 # 0x7c09 l2 # 0x7c10 foo == code # instruction effective address register displacement immediate # . op subop mod rm32 base index scale r32 # . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes Entry: # run tests if necessary, convert stdin if not # . prologue 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # Heap = new-segment(Heap-size) # . . push args 68/push Heap/imm32 ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Heap-size/disp32 # push *Heap-size # . . call e8/call new-segment/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # initialize-trace-stream(Trace-size) # . . push args ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Trace-size/disp32 # push *Heap-size # . . call e8/call initialize-trace-stream/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # - if argc > 1 and argv[1] == "test", then return run_tests() # if (argc <= 1) goto interactive 81 7/subop/compare 1/mod/*+disp8 5/rm32/ebp . . . . 0/disp8 1/imm32 # compare *ebp 7e/jump-if-<= $subx-survey-main:interactive/disp8 # if (!kernel-string-equal?(argv[1], "test")) goto interactive # . eax = kernel-string-equal?(argv[1], "test") # . . push args 68/push "test"/imm32 ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) # . . call e8/call kernel-string-equal?/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # . if (eax == false) goto interactive 3d/compare-eax-and 0/imm32/false 74/jump-if-= $subx-survey-main:interactive/disp8 # run-tests() e8/call run-tests/disp32 # syscall(exit, *Num-test-failures) 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/ebx Num-test-failures/disp32 # copy *Num-test-failures to ebx eb/jump $subx-survey-main:end/disp8 $subx-survey-main:interactive: # - otherwise convert stdin # subx-survey(Stdin, Stdout) # . . push args 68/push Stdout/imm32 68/push Stdin/imm32 # . . call e8/call subx-survey/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp #? # . write-stream(2/stderr, Trace-stream) #? # . . push args #? ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Trace-stream/disp32 # push *Trace-stream #? 68/push 2/imm32/stderr #? # . . call #? e8/call write-stream/disp32 #? # . . discard args #? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # syscall(exit, 0) bb/copy-to-ebx 0/imm32 $subx-survey-main:end: e8/call syscall_exit/disp32 subx-survey: # infile: (addr buffered-file), out: (addr buffered-file) # pseudocode # var in: (stream byte Input-size) # slurp(infile, in) # var labels: (stream {label-name, address} Max-labels) # compute-addresses(in, labels) # emit-labels(out, labels) # # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # . save registers 51/push-ecx 52/push-edx 56/push-esi # var labels/edx: (stream {label-name, address} Max-labels) # (we get more rows than Max-labels advertises because row size is smaller than in survey_elf) # . data 2b/subtract 0/mod/indirect 5/rm32/.disp32 . . 4/r32/esp Max-labels/disp32 # subtract *Max-labels from esp # . size ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Max-labels/disp32 # push *Max-labels # . read 68/push 0/imm32/read # . write 68/push 0/imm32/write 89/copy 3/mod/direct 2/rm32/edx . . . 4/r32/esp . . # copy esp to edx # var in/esi: (stream byte Input-size) # . data 2b
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<html><head><title>Python: module ranger.gui.curses_shortcuts</title>
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<font color="#ffffff" face="helvetica, arial">&nbsp;<br><big><big><strong><a href="ranger.html"><font color="#ffffff">ranger</font></a>.<a href="ranger.gui.html"><font color="#ffffff">gui</font></a>.curses_shortcuts</strong></big></big></font></td
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<font color="#ffffff" face="helvetica, arial"><big><strong>Modules</strong></big></font></td></tr>
    
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<td width="100%"><table width="100%" summary="list"><tr><td width="25%" valign=top><a href="_curses.html">_curses</a><br>
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<font color="#ffffff" face="helvetica, arial"><big><strong>Classes</strong></big></font></td></tr>
    
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<dt><font face="helvetica, arial"><a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>(<a href="__builtin__.html#object">__builtin__.object</a>)
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<dl>
<dt><font face="helvetica, arial"><a href="ranger.gui.curses_shortcuts.html#CursesShortcuts">CursesShortcuts</a>
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<font color="#000000" face="helvetica, arial"><a name="CursesShortcuts">class <strong>CursesShortcuts</strong></a>(<a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>)</font></td></tr>
    
<tr bgcolor="#ffc8d8"><td rowspan=2><tt>&nbsp;&nbsp;&nbsp;</tt></td>
<td colspan=2><tt>This&nbsp;class&nbsp;defines&nbsp;shortcuts&nbsp;to&nbsp;faciliate&nbsp;operations&nbsp;with&nbsp;curses.<br>
<a href="#CursesShortcuts-color">color</a>(*keys)&nbsp;--&nbsp;sets&nbsp;the&nbsp;color&nbsp;associated&nbsp;with&nbsp;the&nbsp;keys&nbsp;from<br>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;the&nbsp;current&nbsp;colorscheme.<br>
<a href="#CursesShortcuts-color_at">color_at</a>(y,&nbsp;x,&nbsp;wid,&nbsp;*keys)&nbsp;--&nbsp;sets&nbsp;the&nbsp;color&nbsp;at&nbsp;the&nbsp;given&nbsp;position<br>
<a href="#CursesShortcuts-color_reset">color_reset</a>()&nbsp;--&nbsp;resets&nbsp;the&nbsp;color&nbsp;to&nbsp;the&nbsp;default<br>
<a href="#CursesShortcuts-addstr">addstr</a>(*args)&nbsp;--&nbsp;failsafe&nbsp;version&nbsp;of&nbsp;self.<strong>win</strong>.<a href="#CursesShortcuts-addstr">addstr</a>(*args)<br>&nbsp;</tt></td></tr>
<tr><td>&nbsp;</td>
<td width="100%"><dl><dt>Method resolution order:</dt>
<dd><a href="ranger.gui.curses_shortcuts.html#CursesShortcuts">CursesShortcuts</a></dd>
<dd><a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a></dd>
<dd><a href="__builtin__.html#object">__builtin__.object</a></dd>
</dl>
<hr>
Methods defined here:<br>
<dl><dt><a name="CursesShortcuts-addnstr"><strong>addnstr</strong></a>(self, *args)</dt></dl>

<dl><dt><a name="CursesShortcuts-addstr"><strong>addstr</strong></a>(self, *args)</dt></dl>

<dl><dt><a name="CursesShortcuts-color"><strong>color</strong></a>(self, *keys)</dt><dd><tt>Change&nbsp;the&nbsp;colors&nbsp;from&nbsp;now&nbsp;on.</tt></dd></dl>

<dl><dt><a name="CursesShortcuts-color_at"><strong>color_at</strong></a>(self, y, x, wid, *keys)</dt><dd><tt>Change&nbsp;the&nbsp;colors&nbsp;at&nbsp;the&nbsp;specified&nbsp;position</tt></dd></dl>

<dl><dt><a name="CursesShortcuts-color_reset"><strong>color_reset</strong></a>(self)</dt><dd><tt>Change&nbsp;the&nbsp;colors&nbsp;to&nbsp;the&nbsp;default&nbsp;colors</tt></dd></dl>

<hr>
Data descriptors inherited from <a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>:<br>
<dl><dt><strong>__dict__</strong></dt>
<dd><tt>dictionary&nbsp;for&nbsp;instance&nbsp;variables&nbsp;(if&nbsp;defined)</tt></dd>
</dl>
<dl><dt><strong>__weakref__</strong></dt>
<dd><tt>list&nbsp;of&nbsp;weak&nbsp;references&nbsp;to&nbsp;the&nbsp;object&nbsp;(if&nbsp;defined)</tt></dd>
</dl>
<hr>
Data and other attributes inherited from <a href="ranger.shared.settings.html#SettingsAware">ranger.shared.settings.SettingsAware</a>:<br>
<dl><dt><strong>settings</strong> = &lt;ranger.ext.openstruct.OpenStruct object at 0xe2f090&gt;</dl>

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generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-12-27 14:52:56 +0000
ream # . . call e8/call write/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # write-slice(*Trace-stream, l2) # . . push args ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12) ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Trace-stream/disp32 # push *Trace-stream # . . call e8/call write-slice/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # write(*Trace-stream, s3) # . . push args ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0x10/disp8 . # push *(ebp+16) ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Trace-stream/disp32 # push *Trace-stream # . . call e8/call write/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # write-int32-hex(*Trace-stream, n4) # . . push args ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0x14/disp8 . # push *(ebp+20) ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Trace-stream/disp32 # push *Trace-stream # . . call e8/call write-int32-hex/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # trace(s5) # implicitly adds a newline and finalizes the trace line # . . push args ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0x18/disp8 . # push *(ebp+24) # . . call e8/call trace/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp $trace-slsns:end: # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return test-trace-slsns: # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # setup # . *Trace-stream->write = 0 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 0/r32/eax Trace-stream/disp32 # copy *Trace-stream to eax c7 0/subop/copy 0/mod/direct 0/rm32/eax . . . . . 0/imm32 # clear *eax # (eax..ecx) = "b" b8/copy-to-eax "b"/imm32 8b/copy 0/mod/indirect 0/rm32/eax . . . 1/r32/ecx . . # copy *eax to ecx 8d/copy-address 1/mod/*+disp8 4/rm32/sib 0/base/eax 1/index/ecx . 1/r32/ecx 4/disp8 . # copy eax+ecx+4 to ecx 05/add-to-eax 4/imm32 # var b/ebx: slice = {eax, ecx} 51/push-ecx 50/push-eax 89/copy 3/mod/direct 3/rm32/ebx . . . 4/r32/esp . . # copy esp to ebx # trace-slsls("A" b "c " 3 " e") # . . push args 68/push " e"/imm32 68/push 3/imm32 68/push "c "/imm32 53/push-ebx 68/push "A"/imm32 # . . call e8/call trace-slsns/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0x14/imm32 # add to esp #? # dump *Trace-stream {{{ #? # . write(2/stderr, "^") #? # . . push args #? 68/push "^"/imm32 #? 68/push 2/imm32/stderr #? # . . call #? e8/call write/disp32 #? # . . discard args #? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp #? # . write-stream(2/stderr, *Trace-stream) #? # . . push args #? ff 6/subop/push 0/mod/indirect 5/rm32/.disp32 . . . Trace-stream/disp32 # push *Trace-stream #? 68/push 2/imm32/stderr #? # . . call #? e8/call write-stream/disp32 #? # . . discard args #? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp #? # . write(2/stderr, "$\n") #? # . . push args #? 68/push "$\n"/imm32 #? 68/push 2/imm32/stderr #? # . . call #? e8/call write/disp32 #? # . . discard args #? 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp #? # }}} # check-trace-contains("Abc 0x00000003 e") # . . push args 68/push "F - test-trace-slsls"/imm32 68/push "Abc 0x00000003 e"/imm32 # . . call e8/call check-trace-contains/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # . epilogue 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp 5d/pop-to-ebp c3/return # . . vim:nowrap:textwidth=0