diff options
author | Kartik Agaram <vc@akkartik.com> | 2019-08-26 11:55:26 -0700 |
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committer | Kartik Agaram <vc@akkartik.com> | 2019-08-26 11:59:21 -0700 |
commit | 333525360b22f3d3ea31db46a4d2f1b4edbfebdb (patch) | |
tree | ed255f308542ba28a99d862d54d4992dcf749622 /057write.subx | |
parent | 22fb844ba4edf14eb85245a35f42e721658c4f8e (diff) | |
download | mu-333525360b22f3d3ea31db46a4d2f1b4edbfebdb.tar.gz |
5592 - switch register names to lowercase
Diffstat (limited to '057write.subx')
-rw-r--r-- | 057write.subx | 84 |
1 files changed, 42 insertions, 42 deletions
diff --git a/057write.subx b/057write.subx index 203cbf76..4b46a5d5 100644 --- a/057write.subx +++ b/057write.subx @@ -23,56 +23,56 @@ # TODO: come up with a way to signal when a write to disk fails write: # f : fd or (address stream), s : (address array byte) -> <void> # . prolog - 55/push-EBP - 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP + 55/push-ebp + 89/copy 3/mod/direct 5/rm32/ebp . . . 4/r32/esp . . # copy esp to ebp # if (f < 0x08000000) _write(f, s) and return # f can't be a user-mode address, so treat it as a kernel file descriptor - 81 7/subop/compare 1/mod/*+disp8 5/rm32/EBP . . . . 8/disp8 0x08000000/imm32 # compare *(EBP+8) + 81 7/subop/compare 1/mod/*+disp8 5/rm32/ebp . . . . 8/disp8 0x08000000/imm32 # compare *(ebp+8) 73/jump-if-greater-unsigned-or-equal $write:fake/disp8 # . . 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) + 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) # . . call e8/call _write/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp eb/jump $write:end/disp8 $write:fake: # otherwise, treat 'f' as a stream to append to # . save registers - 50/push-EAX - 51/push-ECX - 52/push-EDX - 53/push-EBX - # ECX = f - 8b/copy 1/mod/*+disp8 5/rm32/EBP . . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX - # EDX = f->write - 8b/copy 0/mod/indirect 1/rm32/ECX . . . 2/r32/EDX . . # copy *ECX to EDX - # EBX = f->length - 8b/copy 1/mod/*+disp8 1/rm32/ECX . . . 3/r32/EBX 8/disp8 . # copy *(ECX+8) to EBX - # EAX = _append-3(&f->data[f->write], &f->data[f->length], s) + 50/push-eax + 51/push-ecx + 52/push-edx + 53/push-ebx + # ecx = f + 8b/copy 1/mod/*+disp8 5/rm32/ebp . . 1/r32/ecx 8/disp8 . # copy *(ebp+8) to ecx + # edx = f->write + 8b/copy 0/mod/indirect 1/rm32/ecx . . . 2/r32/edx . . # copy *ecx to edx + # ebx = f->length + 8b/copy 1/mod/*+disp8 1/rm32/ecx . . . 3/r32/ebx 8/disp8 . # copy *(ecx+8) to ebx + # eax = _append-3(&f->data[f->write], &f->data[f->length], s) # . . push s - 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 . . . . 0xc/disp8 . # push *(ebp+12) # . . push &f->data[f->length] - 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ECX 3/index/EBX . 3/r32/EBX 0xc/disp8 . # copy ECX+EBX+12 to EBX - 53/push-EBX + 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 3/index/ebx . 3/r32/ebx 0xc/disp8 . # copy ecx+ebx+12 to ebx + 53/push-ebx # . . push &f->data[f->write] - 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ECX 2/index/EDX . 3/r32/EBX 0xc/disp8 . # copy ECX+EDX+12 to EBX - 53/push-EBX + 8d/copy-address 1/mod/*+disp8 4/rm32/sib 1/base/ecx 2/index/edx . 3/r32/ebx 0xc/disp8 . # copy ecx+edx+12 to ebx + 53/push-ebx # . . call e8/call _append-3/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP - # f->write += EAX - 01/add 0/mod/indirect 1/rm32/ECX . . . 0/r32/EAX . . # add EAX to *ECX + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp + # f->write += eax + 01/add 0/mod/indirect 1/rm32/ecx . . . 0/r32/eax . . # add eax to *ecx # . restore registers - 5b/pop-to-EBX - 5a/pop-to-EDX - 59/pop-to-ECX - 58/pop-to-EAX + 5b/pop-to-ebx + 5a/pop-to-edx + 59/pop-to-ecx + 58/pop-to-eax $write:end: # . epilog - 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP - 5d/pop-to-EBP + 89/copy 3/mod/direct 4/rm32/esp . . . 5/r32/ebp . . # copy ebp to esp + 5d/pop-to-ebp c3/return test-write-single: @@ -82,7 +82,7 @@ test-write-single: # . . call e8/call clear-stream/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # write(_test-stream, "Ab") # . . push args 68/push "Ab"/imm32 @@ -90,18 +90,18 @@ test-write-single: # . . call e8/call write/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # check-ints-equal(*_test-stream->data, 41/A 62/b 00 00, msg) # . . push args 68/push "F - test-write-single"/imm32 68/push 0x006241/imm32/Ab # . . push *_test-stream->data - b8/copy-to-EAX _test-stream/imm32 - ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX . . . . 0xc/disp8 . # push *(EAX+12) + b8/copy-to-eax _test-stream/imm32 + ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 0xc/disp8 . # push *(eax+12) # . . call e8/call check-ints-equal/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp # end c3/return @@ -112,7 +112,7 @@ test-write-appends: # . . call e8/call clear-stream/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 4/imm32 # add to esp # write(_test-stream, "C") # . . push args 68/push "C"/imm32 @@ -120,7 +120,7 @@ test-write-appends: # . . call e8/call write/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # write(_test-stream, "D") # . . push args 68/push "D"/imm32 @@ -128,18 +128,18 @@ test-write-appends: # . . call e8/call write/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 8/imm32 # add to esp # check-ints-equal(*_test-stream->data, 43/C 44/D 00 00, msg) # . . push args 68/push "F - test-write-appends"/imm32 68/push 0x00004443/imm32/C-D # . . push *_test-stream->data - b8/copy-to-EAX _test-stream/imm32 - ff 6/subop/push 1/mod/*+disp8 0/rm32/EAX . . . . 0xc/disp8 . # push *(EAX+12) + b8/copy-to-eax _test-stream/imm32 + ff 6/subop/push 1/mod/*+disp8 0/rm32/eax . . . . 0xc/disp8 . # push *(eax+12) # . . call e8/call check-ints-equal/disp32 # . . discard args - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 0xc/imm32 # add to ESP + 81 0/subop/add 3/mod/direct 4/rm32/esp . . . . . 0xc/imm32 # add to esp # end c3/return |