diff options
Diffstat (limited to 'subx/examples/ex3.subx')
| -rw-r--r-- | subx/examples/ex3.subx | 38 |
1 files changed, 19 insertions, 19 deletions
diff --git a/subx/examples/ex3.subx b/subx/examples/ex3.subx index e5dad9e4..b3f7d6fe 100644 --- a/subx/examples/ex3.subx +++ b/subx/examples/ex3.subx @@ -8,29 +8,29 @@ # 55 == 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 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 - # result: EBX = 0 - bb/copy-to-EBX 0/imm32 - # counter: ECX = 1 - b9/copy-to-ECX 1/imm32 + # result: EBX = 0 + bb/copy-to-EBX 0/imm32 + # counter: ECX = 1 + b9/copy-to-ECX 1/imm32 $loop: - # while (counter <= 10) - 81 7/subop/compare 3/mod/direct 1/rm32/ECX . . . . . 0xa/imm32 # compare ECX - 7f/jump-if-greater $exit/disp8 - # result += counter - 01/add 3/mod/direct 3/rm32/EBX . . . 1/r32/ECX . . # add ECX to EBX - # ++counter - 41/inc-ECX - # loop - eb/jump $loop/disp8 + # while (counter <= 10) + 81 7/subop/compare 3/mod/direct 1/rm32/ECX . . . . . 0xa/imm32 # compare ECX + 7f/jump-if-greater $exit/disp8 + # result += counter + 01/add 3/mod/direct 3/rm32/EBX . . . 1/r32/ECX . . # add ECX to EBX + # ++counter + 41/inc-ECX + # loop + eb/jump $loop/disp8 $exit: - # exit(EBX) - b8/copy-to-EAX 1/imm32 - cd/syscall 0x80/imm8 + # exit(EBX) + b8/copy-to-EAX 1/imm32 + cd/syscall 0x80/imm8 # vim:nowrap:textwidth=0 |