在 2024-05-15 17:11, anand akhare via Gcc-help 写道:
Hello gcc team,
my question is quite basic. I am looking for exhaustive complete reference for x86 instructions in gnu assembly. I searched a bit but most of my searches are pointing outside gnu.org. I am specifically looking for cmpxchg and atomic instructions related reference. I could not find anything definitive there or I am might be missing obvious.
The only official documentation of x86 instructions is the Intel Software Develop Manual.However it's pure Intel syntax, so what should we do? There is a great cross compiler; it's called Clang! You can compile Intel assembly to AT&T assembly and copy the result. It works mostly.
For example (https://gcc.godbolt.org/z/xTxKPxjrr): ``` __asm__ (R"( .intel_syntax noprefix lock cmpxchg DWORD PTR [rsi], ecx )"); ``` This gives ``` .text: lock cmpxchg %ecx,(%rsi) ``` -- Best regards, LIU Hao
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