regtest1.c

汇编经典教程profession_assembly_language（Richard Blum著） 的code

/* regtest1.c - An example of using registers */
#include <stdio.h>

int main()
{
   int data1 = 10;
   int data2 = 20;
   int result;

   asm ("imull %%edx, %%ecx\n\t"
        "movl %%ecx, %%eax"
        : "=a"(result)
        : "d"(data1), "c"(data2));

   printf("The result is %d\n", result);
   return 0;
}