diff options
Diffstat (limited to 'subx/examples/ex8.subx')
| -rw-r--r-- | subx/examples/ex8.subx | 18 |
1 files changed, 9 insertions, 9 deletions
diff --git a/subx/examples/ex8.subx b/subx/examples/ex8.subx index fd7929f4..410dfe08 100644 --- a/subx/examples/ex8.subx +++ b/subx/examples/ex8.subx @@ -15,18 +15,18 @@ # Locals start from ESP-4 downwards. == code -# instruction effective address operand displacement immediate -# op subop mod rm32 base index scale r32 -# 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 +# instruction effective address register displacement immediate +# . op subop mod rm32 base index scale r32 +# . 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 + # . prolog 89/copy 3/mod/direct 5/rm32/EBP . . . 4/r32/ESP . . # copy ESP to EBP - # call ascii-length(argv[1]) - # push args + # . . 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 + # . . call e8/call ascii-length/disp32 - # discard args + # . . discard args 81 0/subop/add 3/mod/direct 4/rm32/ESP . . . . . 4/imm32 # add to ESP # exit(EAX) @@ -55,4 +55,4 @@ $ascii-length-ret: # return (result in EAX) c3/return -# vim:nowrap:textwidth=0 +# . . vim:nowrap:textwidth=0 |