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36938cabf0
"Unambiguous" is is in particular taking as reference the assembler, which also accepts certain insns - despite them allowing for varying operand size, and hence in principle being ambiguous - without any suffix. For example, from the very beginning of the life of x86-64 I had trouble understanding why a plain and simple RET had to be printed as RETQ. In case someone really used the 16-bit form, RETW disambiguates the two quite fine.
27 lines
1.3 KiB
Plaintext
27 lines
1.3 KiB
Plaintext
#objdump: -dwrj.text
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#target: x86_64-*-*
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.*: +file format elf.*-x86-64.*
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Disassembly of section .text:
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#...
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[0-9a-f]+ <check>:
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+[a-f0-9]+: 48 83 ec 08 sub \$0x8,%rsp
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+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+call \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <.*>
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+[a-f0-9]+: 48 81 f8 ([0-9a-f]{2} ){4}[ ]+cmp \$0x[0-9a-f]+,%rax
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+[a-f0-9]+: 75 34 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
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+[a-f0-9]+: 4(0|8) 39 05 ([0-9a-f]{2} ){4}[ ]+(rex |)cmp +%(e|r)ax,0x[0-9a-f]+\(%rip\) +# [a-f0-9]+ <.*>
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+[a-f0-9]+: 75 2b jne [0-9a-f]+ <check\+0x[0-9a-f]+>
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+[a-f0-9]+: 67 e8 ([0-9a-f]{2} ){4}[ ]+addr32 call [0-9a-f]+ <func>
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+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
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+[a-f0-9]+: 75 1e jne [0-9a-f]+ <check\+0x[0-9a-f]+>
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+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+call \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <.*>
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+[a-f0-9]+: 3d 78 56 34 12 cmp \$0x12345678,%eax
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+[a-f0-9]+: 75 11 jne [0-9a-f]+ <check\+0x[0-9a-f]+>
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+[a-f0-9]+: 48 8d 3d ([0-9a-f]{2} ){4}[ ]+lea 0x[a-f0-9]+\(%rip\),%rdi +# [a-f0-9]+.*
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+[a-f0-9]+: 48 83 c4 08 add \$0x8,%rsp
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+[a-f0-9]+: ff 25 ([0-9a-f]{2} ){4}[ ]+jmp \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <.*>
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+[a-f0-9]+: ff 15 ([0-9a-f]{2} ){4}[ ]+call \*0x[0-9a-f]+\(%rip\) +# [0-9a-f]+ <.*>
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#pass
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