如何使用汇编将寄存器值存储到 C++ 变量？

Question

int my_var;
void __declspec(naked) stuff()
{
    __asm
    {
        lea edx, [ecx + edi + 0x0000111]
    }
}

How to store the value from the address [ecx + edi + 0x0000111] in the c++ variable "my_var" above.

Answer 1

From the Microsoft docs :

An __asm block can refer to any symbols, including variable names, that are in scope where the block appears.

Therefore you could do this:

int my_var;
void __declspec(naked) stuff()
{
    __asm
    {
        lea edx, [ecx + edi + 0x0000111]
        mov my_var, edx
        ret

    }
}