What does this assembly l code mean? -

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in program source code ,i saw following. code exactly?

.code foo proc    nop    nop     push rax    push rax    mov rax, 545h     mov [rsp+8], rax    pop rax     ret foo endp end

then used dll export:

extern "c" void __stdcall foo(void);

it pushes 2 values, modifies 1 of them, pops one. leaves 1 value ret.

it unclear how better jmp 545h though.


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