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Kartik Agaram 2020-04-06 07:15:47 -07:00
parent eb99b46747
commit 0fef94e1c0
2 changed files with 6 additions and 3 deletions
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apps/survey.subx
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@ -1139,7 +1139,8 @@ $compute-offsets:case-default:
#? # }}}
e9/jump $compute-offsets:word-loop/disp32
$compute-offsets:break-line-loop:
# sinfo/eax = get-or-insert(segments, curr-segment-name, row-size=16)
# sinfo/edi = get-or-insert(segments, curr-segment-name, row-size=16)
# . eax = get-or-insert(segments, curr-segment-name, row-size=16)
# . . push args
68/push 0x10/imm32/row-size
56/push-esi
@ -1148,17 +1149,19 @@ $compute-offsets:break-line-loop:
e8/call get-or-insert/disp32
# . . discard args
81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp
# . edi = eax
89/copy 3/mod/direct 7/rm32/edi . . . 0/r32/eax . . # copy eax to edi
# sinfo->size = file-offset - sinfo->file-offset
# . save ecx
51/push-ecx
# . ebx = *file-offset
8b/copy 0/mod/indirect 5/rm32/.disp32 . . 3/r32/ebx compute-offsets:file-offset/disp32 # copy *file-offset to ebx
# . ecx = sinfo->file-offset
8b/copy 1/mod/*+disp8 0/rm32/eax . . . 1/r32/ecx 4/disp8 . # copy *(eax+4) to ecx
8b/copy 1/mod/*+disp8 7/rm32/edi . . . 1/r32/ecx 4/disp8 . # copy *(edi+4) to ecx
# . ebx -= ecx
29/subtract 3/mod/direct 3/rm32/ebx . . . 1/r32/ecx . . # subtract ecx from ebx
# . sinfo->size = ebx
89/copy 1/mod/*+disp8 0/rm32/eax . . . 3/r32/ebx 8/disp8 . # copy ebx to *(eax+8)
89/copy 1/mod/*+disp8 7/rm32/edi . . . 3/r32/ebx 8/disp8 . # copy ebx to *(edi+8)
# . restore ecx
59/pop-to-ecx
# trace-sssns("segment '", curr-segment-name, "' has size ", sinfo->size, ".")