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segrax/x64_function_call_register_use

Last active August 29, 2015 14:16
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x64 CPU Register function call usage
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x64_function_call_register_use
RAX temporary register; with variable arguments passes information about the number of vector registers used; 1st return register
RDI used to pass 1st argument to functions
RSI used to pass 2nd argument to functions
RDX used to pass 3rd argument to functions; 2nd return register
RCX used to pass 4th argument to functions
R8 used to pass 5th argument to functions
R9 used to pass 6th argument to functions
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