2020-03-07 01:41:36 +00:00
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# Compare 3 and 3.
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#
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# To run:
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2021-03-30 01:47:52 +00:00
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# $ bootstrap/bootstrap translate ex13.subx -o ex13
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2021-03-04 08:24:24 +00:00
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# $ bootstrap/bootstrap run ex13
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2020-03-07 01:41:36 +00:00
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# Expected result:
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# $ echo $?
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# 1
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== code
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# instruction effective address register displacement immediate
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# . op subop mod rm32 base index scale r32
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# . 1-3 bytes 3 bits 2 bits 3 bits 3 bits 3 bits 2 bits 2 bits 0/1/2/4 bytes 0/1/2/4 bytes
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Entry:
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b8/copy-to-eax 3/imm32
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3d/compare-eax-and 3/imm32
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0f 94/set-if-= 3/mod/direct 3/rm32/ebx . . . . . . # set ebx to ZF
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2020-03-31 07:12:37 +00:00
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81 4/subop/and 3/mod/direct 3/rm32/ebx . . . . . 0xff/imm32 # AND with eax
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2020-03-07 01:41:36 +00:00
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$exit:
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# exit(ebx)
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e8/call syscall_exit/disp32
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# . . vim:nowrap:textwidth=0
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