diff options
Diffstat (limited to 'subx/examples/ex8.subx')
| -rw-r--r-- | subx/examples/ex8.subx | 14 |
1 files changed, 7 insertions, 7 deletions
diff --git a/subx/examples/ex8.subx b/subx/examples/ex8.subx index ccc6dcb9..2726eea9 100644 --- a/subx/examples/ex8.subx +++ b/subx/examples/ex8.subx @@ -20,11 +20,11 @@ # 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes # prolog 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP - # call ascii_length(argv[1]) + # call ascii-length(argv[1]) # push args ff 6/subop/push 1/mod/*+disp8 4/rm32/sib 5/base/EBP 4/index/none . . 0x8/disp8 . # push *(EBP+8) # call - e8/call ascii_length/disp32 + e8/call ascii-length/disp32 # discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP @@ -33,24 +33,24 @@ b8/copy . . . . . . . 1/imm32/exit # copy to EAX cd/syscall 0x80/imm8 -ascii_length: # (s) +ascii-length: # (s) # initialize s (EDX) 8b/copy 1/mod/*+disp8 4/rm32/sib 4/base/ESP 4/index/none 2/r32/EDX 4/disp8 # copy *(ESP+4) to EDX # var result = 0 (EAX) b8/copy . . . . . . . 0/imm32 # copy to EAX -$ascii_length_loop: +$ascii-length-loop: # var c = *s (ECX) 8a/copy 0/mod/* 2/rm32/EDX . . . 1/r32/ECX . . # copy byte at *EDX to lower byte of ECX # if c == '\0' break 81 7/subop/compare 3/mod/direct 1/rm32/ECX . . . . . 0/imm32 # compare ECX - 74/jump-if-equal $ascii_length_ret/disp8 + 74/jump-if-equal $ascii-length-ret/disp8 # ++s 81 0/subop/add 3/mod/direct 2/rm32/EDX . . . . . 1/imm32 # add to EDX # ++result 40/inc-EAX # loop - eb/jump $ascii_length_loop/disp8 -$ascii_length_ret: + eb/jump $ascii-length-loop/disp8 +$ascii-length-ret: # return (result in EAX) c3/return |