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paizaでインラインアセンブラ

Last updated at Posted at 2018-09-21

概要

x64で、インラインアセンブラやってみた。

サンプルコード

足し算。

#include <stdio.h>

int test(int a, int b)
{
    int ret = 0;
    __asm__ volatile ("add %1, %2; mov %2, %0;" : "=r" (ret) : "r" (a), "r" (b) : );  
    return ret;
}
int main(void)
{
    int a = 100;
    int b = 200;
    printf ("%d", test(a, b));
}


成果物

以上。

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