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| author | Kartik Agaram <vc@akkartik.com> | 2020-01-27 00:36:44 -0800 |
|---|---|---|
| committer | Kartik Agaram <vc@akkartik.com> | 2020-01-27 00:36:44 -0800 |
| commit | 71eb22a5bf94f5fa0a3c95212450e3c6a1a6a990 (patch) | |
| tree | 56307b5145be44b2239d3c782234309ed714f1b6 /054string-equal.subx | |
| parent | 1a65c3af0f797892f5981f8ebd33c275c1ef06b0 (diff) | |
| download | mu-71eb22a5bf94f5fa0a3c95212450e3c6a1a6a990.tar.gz | |
5924
Diffstat (limited to '054string-equal.subx')
| -rw-r--r-- | 054string-equal.subx | 16 |
1 files changed, 8 insertions, 8 deletions
diff --git a/054string-equal.subx b/054string-equal.subx index 67f54a66..10706302 100644 --- a/054string-equal.subx +++ b/054string-equal.subx @@ -13,7 +13,7 @@ Entry: # run all tests b8/copy-to-eax 1/imm32/exit cd/syscall 0x80/imm8 -string-equal?: # s : (addr array byte), benchmark : (addr array byte) -> eax : boolean +string-equal?: # s: (addr array byte), benchmark: (addr array byte) -> eax: boolean # pseudocode: # if (s->length != benchmark->length) return false # currs = s->data @@ -51,15 +51,15 @@ $string-equal?:lengths: # if (ecx != benchmark->length) return false 39/compare 0/mod/indirect 7/rm32/edi . . . 1/r32/ecx . . # compare *edi and ecx 75/jump-if-!= $string-equal?:false/disp8 - # var currs/esi : (addr byte) = s->data + # var currs/esi: (addr byte) = s->data 81 0/subop/add 3/mod/direct 6/rm32/esi . . . . . 4/imm32 # add to esi - # var maxs/ecx : (addr byte) = &s->data[s->length] + # var maxs/ecx: (addr byte) = &s->data[s->length] 01/add 3/mod/direct 1/rm32/ecx . . . 6/r32/esi . . # add esi to ecx - # var currb/edi : (addr byte) = benchmark->data + # var currb/edi: (addr byte) = benchmark->data 81 0/subop/add 3/mod/direct 7/rm32/edi . . . . . 4/imm32 # add to edi - # var c1/eax : byte = 0 + # var c1/eax: byte = 0 31/xor 3/mod/direct 0/rm32/eax . . . 0/r32/eax . . # clear eax - # var c2/edx : byte = 0 + # var c2/edx: byte = 0 31/xor 3/mod/direct 2/rm32/edx . . . 2/r32/edx . . # clear edx $string-equal?:loop: # if (currs >= maxs) return true @@ -176,13 +176,13 @@ test-compare-inequal-strings-equal-lengths: c3/return # helper for later tests -check-strings-equal: # s : (addr array byte), expected : (addr array byte), msg : (addr array byte) +check-strings-equal: # s: (addr array byte), expected: (addr array byte), msg: (addr array byte) # . prologue 55/push-ebp 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # . save registers 50/push-eax - # var eax : boolean = string-equal?(s, expected) + # var eax: boolean = string-equal?(s, expected) # . . push args ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 0xc/disp8 . # push *(ebp+12) ff 6/subop/push 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 . # push *(ebp+8) |