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| author | Kartik Agaram <vc@akkartik.com> | 2019-08-13 10:57:05 -0700 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2019-08-13 10:57:05 -0700 |
| commit | bfb2a8c0f066abcfcb551bb450785d9f7f7458b5 (patch) | |
| tree | 3531717ad0f49b8155fb1f79123a6118e7d09ba3 /apps/desugar.subx | |
| parent | fc638442f9d61d97796e8469a75253d94a290812 (diff) | |
| download | mu-bfb2a8c0f066abcfcb551bb450785d9f7f7458b5.tar.gz | |
get desugar working on the commandline
Diffstat (limited to 'apps/desugar.subx')
| -rw-r--r-- | apps/desugar.subx | 60 |
1 files changed, 54 insertions, 6 deletions
diff --git a/apps/desugar.subx b/apps/desugar.subx index a982a5c6..ae921caf 100644 --- a/apps/desugar.subx +++ b/apps/desugar.subx @@ -14,15 +14,16 @@ Entry: # run tests if necessary, convert stdin if not # initialize heap - # . Heap = new-segment(64KB) + # . Heap = new-segment(Heap-size) # . . push args 68/push Heap/imm32 - 68/push 0x10000/imm32/64KB + 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 + # run tests if necessary, convert stdin if not # . prolog 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP # - if argc > 1 and argv[1] == "test", then return run_tests() @@ -46,7 +47,7 @@ Entry: # run tests if necessary, convert stdin if not eb/jump $main:end/disp8 $run-main: # - otherwise convert stdin - # return convert(Stdin, Stdout) + # convert(Stdin, Stdout) # . . push args 68/push Stdout/imm32 68/push Stdin/imm32 @@ -155,17 +156,64 @@ $convert:check-for-register-literal: 3d/compare-EAX-and 0x25/imm32/percent 75/jump-if-not-equal $convert:regular-word/disp8 $convert:register-literal: +#? # dump word-slice {{{ +#? # . write(2/stderr, "w: ") +#? # . . push args +#? 68/push "w: "/imm32 +#? 68/push 2/imm32/stderr +#? # . . call +#? e8/call write/disp32 +#? # . . discard args +#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP +#? # . clear-stream(Stderr+4) +#? # . . save EAX +#? 50/push-EAX +#? # . . push args +#? b8/copy-to-EAX Stderr/imm32 +#? 05/add-to-EAX 4/imm32 +#? 50/push-EAX +#? # . . call +#? e8/call clear-stream/disp32 +#? # . . discard args +#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP +#? # . . restore EAX +#? 58/pop-to-EAX +#? # . write-slice-buffered(Stderr, word-slice) +#? # . . push args +#? 52/push-EDX +#? 68/push Stderr/imm32 +#? # . . call +#? e8/call write-slice-buffered/disp32 +#? # . . discard args +#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP +#? # . flush(Stderr) +#? # . . push args +#? 68/push Stderr/imm32 +#? # . . call +#? e8/call flush/disp32 +#? # . . discard args +#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP +#? # . write(2/stderr, "$\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 +#? # }}} # ++word-slice->start - 4b/increment-EBX + ff 0/subop/increment 0/mod/indirect 2/rm32/EDX . . . . . . # increment *EDX # desugar-register(word-slice, out) # . . push args + ff 6/subop/push 1/mod/*+disp8 5/rm32/EBP . . . . 0xc/disp8 . # push *(EBP+12) 52/push-EDX # . . call e8/call desugar-register/disp32 # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # continue - eb/jump $convert:next-word/disp8 + e9/jump $convert:next-word/disp32 $convert:regular-word: # write-slice-buffered(out, word-slice) # . . push args @@ -186,7 +234,7 @@ $convert:next-word: # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # loop - eb/jump $convert:word-loop/disp8 + e9/jump $convert:word-loop/disp32 $convert:next-line: # write-buffered(out, "\n") # . . push args |