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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 /052kernel-string-equal.subx | |
| parent | 1a65c3af0f797892f5981f8ebd33c275c1ef06b0 (diff) | |
| download | mu-71eb22a5bf94f5fa0a3c95212450e3c6a1a6a990.tar.gz | |
5924
Diffstat (limited to '052kernel-string-equal.subx')
| -rw-r--r-- | 052kernel-string-equal.subx | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/052kernel-string-equal.subx b/052kernel-string-equal.subx index 248b08e4..369fee90 100644 --- a/052kernel-string-equal.subx +++ b/052kernel-string-equal.subx @@ -30,7 +30,7 @@ Entry: # run all tests # compare a null-terminated ascii string with a more idiomatic length-prefixed byte array # reason for the name: the only place we should have null-terminated ascii strings is from commandline args -kernel-string-equal?: # s : (addr kernel-string), benchmark : (addr array byte) -> eax : boolean +kernel-string-equal?: # s: (addr kernel-string), benchmark: (addr array byte) -> eax: boolean # pseudocode: # n = benchmark->length # s1 = s @@ -61,19 +61,19 @@ kernel-string-equal?: # s : (addr kernel-string), benchmark : (addr array byte) 53/push-ebx 56/push-esi 57/push-edi - # var s1/edi : (addr byte) = s + # var s1/edi: (addr byte) = s 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 7/r32/edi 8/disp8 . # copy *(ebp+8) to edi - # var n/edx : int = benchmark->length + # var n/edx: int = benchmark->length 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 2/r32/edx 0xc/disp8 . # copy *(ebp+12) to edx 8b/copy 0/mod/indirect 2/rm32/edx . . . 2/r32/edx . . # copy *edx to edx - # var s2/esi : (addr byte) = benchmark->data + # var s2/esi: (addr byte) = benchmark->data 8b/copy 1/mod/*+disp8 5/rm32/ebp . . . 6/r32/esi 0xc/disp8 . # copy *(ebp+12) to esi 81 0/subop/add 3/mod/direct 6/rm32/esi . . . . . 4/imm32 # add to esi - # var i/ecx : int = 0 + # var i/ecx: int = 0 b9/copy-to-ecx 0/imm32/exit - # var c1/eax : byte = 0 + # var c1/eax: byte = 0 b8/copy-to-eax 0/imm32 - # var c2/ebx : byte = 0 + # var c2/ebx: byte = 0 bb/copy-to-ebx 0/imm32 $kernel-string-equal?:loop: # if (i >= n) break |