7842 - new directory organization

Baremetal is now the default build target and therefore has its sources
at the top-level. Baremetal programs build using the phase-2 Mu toolchain
that requires a Linux kernel. This phase-2 codebase which used to be at
the top-level is now under the linux/ directory. Finally, the phase-2 toolchain,
while self-hosting, has a way to bootstrap from a C implementation, which
is now stored in linux/bootstrap. The bootstrap C implementation uses some
literate programming tools that are now in linux/bootstrap/tools.

So the whole thing has gotten inverted. Each directory should build one
artifact and include the main sources (along with standard library). Tools
used for building it are relegated to sub-directories, even though those
tools are often useful in their own right, and have had lots of interesting
programs written using them.

A couple of things have gotten dropped in this process:
  - I had old ways to run on just a Linux kernel, or with a Soso kernel.
    No more.
  - I had some old tooling for running a single test at the cursor. I haven't
    used that lately. Maybe I'll bring it back one day.

The reorg isn't done yet. Still to do:
  - redo documentation everywhere. All the README files, all other markdown,
    particularly vocabulary.md.
  - clean up how-to-run comments at the start of programs everywhere
  - rethink what to do with the html/ directory. Do we even want to keep
    supporting it?

In spite of these shortcomings, all the scripts at the top-level, linux/
and linux/bootstrap are working. The names of the scripts also feel reasonable.
This is a good milestone to take stock at.

1 files changed, 0 insertions, 75 deletions

diff --git a/subx.vim b/subx.vim
deleted file mode 100644
index a773e127..00000000
--- a/subx.vim
+++ /dev/null
@@ -1,75 +0,0 @@
-" SubX syntax file
-" Language:    SubX
-" Maintainer:  Kartik Agaram <mu@akkartik.com>
-" URL:         https://github.com/akkartik/mu
-" License:     public domain
-"
-" Copy this file into your ftplugin directory, and add the following to your
-" vimrc or to .vim/ftdetect/subx.vim:
-"   autocmd BufReadPost,BufNewFile *.subx set filetype=subx
-"
-" Some highlight groups you might want to select colors for in your vimrc:
-"   subxFunction
-"   subxMinorFunction
-"   subxTest
-"
-" Optionally, devote more colors to different kinds of comments. Some suggestions
-" for 256-color terminals to add to your vimrc:
-"   blue tones:
-"     highlight subxH1Comment cterm=underline ctermfg=27
-"     highlight subxComment ctermfg=27
-"     highlight subxS1Comment ctermfg=19
-"     highlight subxS2Comment ctermfg=245
-"   blue-green tones
-"     highlight subxH1Comment cterm=underline ctermfg=25
-"     highlight subxComment ctermfg=25
-"     highlight subxS1Comment ctermfg=19
-"     highlight subxS2Comment ctermfg=245
-"   grey tones
-"    highlight subxH1Comment cterm=bold,underline
-"    highlight subxComment cterm=bold ctermfg=236
-"    highlight subxS1Comment cterm=bold ctermfg=242
-"    highlight subxS2Comment ctermfg=242
-
-let s:save_cpo = &cpo
-set cpo&vim
-
-" setlocal iskeyword=@,48-57,?,!,_,$,-
-setlocal formatoptions-=t  " allow long lines
-setlocal formatoptions+=c  " but comments should still wrap
-
-setlocal iskeyword+=-,?,<,>,$,@
-
-syntax match subxH1Comment /# - .*/ | highlight link subxH1Comment Comment
-syntax match subxComment /#\( \.\| - \|? \)\@!.*/ | highlight link subxComment Comment
-syntax match subxS1Comment /# \..*/ | highlight link subxS1Comment Comment
-syntax match subxS2Comment /# \. \..*/ | highlight link subxS2Comment Comment
-
-set comments-=:#
-set comments+=n:#
-syntax match subxCommentedCode "#? .*"  | highlight link subxCommentedCode CommentedCode | highlight link CommentedCode Comment
-let b:cmt_head = "#? "
-
-" comment token
-syntax match subxDelimiter / \. /  | highlight link subxDelimiter Normal
-
-syntax match subxString %"[^"]*"% | highlight link subxString Constant
-
-"" definitions
-" match globals but not registers like 'EAX'
-" don't match capitalized words in metadata
-" don't match inside strings
-syntax match subxGlobal %\(/\)\@<!\<[A-Z][a-z0-9_-]*\>% | highlight link subxGlobal SpecialChar
-
-" functions but not tests, globals or internal functions
-syntax match subxFunction "^\(test_\)\@<![a-z][^ ]*\(:\)\@=" | highlight link subxFunction Function
-" tests starting with 'test-'; dark:34 light:64
-syntax match subxTest "^test-[^ ]*\(:\)\@=" | highlight link subxTest Typedef
-" internal functions starting with '_'
-syntax match subxMinorFunction "^_[^ ]*\(:\)\@=" | highlight link subxMinorFunction Ignore
-" other internal labels starting with '$'
-syntax match subxLabel "^\$[^ ]*\(:\)\@=" | highlight link subxLabel Constant
-
-syntax keyword subxControl break loop | highlight link subxControl Constant
-
-let &cpo = s:save_cpo