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| author | Kartik Agaram <vc@akkartik.com> | 2019-05-10 16:54:05 -0700 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-05-10 16:54:05 -0700 |
| commit | 1ebb7614921a2b426ed84c4c51b100176e2a4187 (patch) | |
| tree | 12de1a20312a788d07ef6564084b7ca81aa15ba1 /subx/apps/dquotes.subx | |
| parent | 3ae1fd0048cb0745f570df0263a828a30315a00b (diff) | |
| parent | c88b9e31259d433c7e63fcb19d430daf9b1c723c (diff) | |
| download | mu-1ebb7614921a2b426ed84c4c51b100176e2a4187.tar.gz | |
Merge pull request #28 from akkartik/allocate-using-mmap
Build `allocate` out of `mmap`
Diffstat (limited to 'subx/apps/dquotes.subx')
| -rw-r--r-- | subx/apps/dquotes.subx | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/subx/apps/dquotes.subx b/subx/apps/dquotes.subx index b236ac2f..fcac2698 100644 --- a/subx/apps/dquotes.subx +++ b/subx/apps/dquotes.subx @@ -22,12 +22,30 @@ Entry: # run tests if necessary, convert stdin if not # for debugging: run a single test +#? # . Heap = new-segment(4096) +#? # . . push args +#? 68/push Heap/imm32 +#? 68/push 0x1000/imm32 +#? # . . call +#? e8/call new-segment/disp32 +#? # . . discard args +#? 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP +#? # . test() #? e8/call test-next-word-returns-string-with-escapes/disp32 #? 8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/EBX Num-test-failures/disp32 # copy *Num-test-failures to EBX #? eb/jump $main:end/disp8 # . prolog 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP + # initialize heap + # . Heap = new-segment(4096) + # . . push args + 68/push Heap/imm32 + 68/push 0x1000/imm32 + # . . call + e8/call new-segment/disp32 + # . . discard args + 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # - if argc > 1 and argv[1] == "test", then return run_tests() # . argc > 1 81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 0/disp8 1/imm32 # compare *EBP @@ -1054,4 +1072,10 @@ Segment-size: Next-string-literal: # tracks the next auto-generated variable name 1/imm32 +Heap: + # curr + 0/imm32 + # limit + 0/imm32 + # . . vim:nowrap:textwidth=0 |