diff options
Diffstat (limited to 'subx/apps/crenshaw2-1.subx')
| -rw-r--r-- | subx/apps/crenshaw2-1.subx | 59 |
1 files changed, 16 insertions, 43 deletions
diff --git a/subx/apps/crenshaw2-1.subx b/subx/apps/crenshaw2-1.subx index 7b4a8deb..2d7921ce 100644 --- a/subx/apps/crenshaw2-1.subx +++ b/subx/apps/crenshaw2-1.subx @@ -50,66 +50,39 @@ abort: # s : (address array byte) -> <void> # print out "Error: #{s} expected\n" to stderr error: # s : (address array byte) -> <void> - # write-stderr("Error: ") + # _write(2/stderr, "Error: ") # push args 68/push "Error: "/imm32 + 68/push 2/imm32/stderr # call - e8/call write-stderr/disp32 + e8/call _write/disp32 # discard arg - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # write-stderr(s) + 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP + # _write(2/stderr, s) # push args ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none . . 4/disp8 . # push *(ESP+4) + 68/push 2/imm32/stderr # call - e8/call write-stderr/disp32 + e8/call _write/disp32 # discard arg - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # write-stderr(" expected") + 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP + # _write(2/stderr, " expected") # push args 68/push " expected"/imm32 + 68/push 2/imm32/stderr # call - e8/call write-stderr/disp32 + e8/call _write/disp32 # discard arg - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # write-stderr("\n") + 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP + # _write(2/stderr, "\n") # push args 68/push Newline/imm32 + 68/push 2/imm32/stderr # call - e8/call write-stderr/disp32 + e8/call _write/disp32 # discard arg - 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP - # end - c3/return - -write-stdout: # s : (address array byte) -> <void> - # prolog - 55/push-EBP - 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP - # save registers - 50/push-EAX - 51/push-ECX - 52/push-EDX - 53/push-EBX - # syscall(write, 1/stdout, (data) s+4, (size) *s) - # fd = 1 (stdout) - bb/copy-to-EBX 1/imm32 - # x = s+4 - 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 1/r32/ECX 8/disp8 . # copy *(EBP+8) to ECX - 81 0/subop/add 3/mod/direct 1/rm32/ECX . . . . . 4/imm32 # add to ECX - # size = *s - 8b/copy 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . 2/r32/EDX 8/disp8 . # copy *(EBP+8) to EDX - 8b/copy 0/mod/indirect 2/rm32/EDX . . . 2/r32/EDX . . # copy *EDX to EDX - # syscall - b8/copy-to-EAX 4/imm32/write - cd/syscall 0x80/imm8 - # restore registers - 5b/pop-to-EBX - 5a/pop-to-EDX - 59/pop-to-ECX - 58/pop-to-EAX + 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 8/imm32 # add to ESP # end - 89/copy 3/mod/direct 4/rm32/ESP . . . 5/r32/EBP . . # copy EBP to ESP - 5d/pop-to-EBP c3/return # vim:nowrap:textwidth=0 |