2

谁能展示我正确的 AT&T 语法来做我在 INTEL 下面做的事情我已经展示了我在 AT&T 的尝试,但他们没有编译......

unsigned int CheckIfGenuineIntel(void)
{
    unsigned int VendorIdentificationString[4] = {0, 0, 0, 0};

#if defined( _DO_INTEL_ )
    __asm__ __volatile__
    (
        "xor eax, eax\n\t"
        "cpuid\n\t"
        "mov %0, ebx\n\t"
        "mov %0 + 4, edx\n\t"
        "mov %0 + 8, ecx"
        :"=m"(VendorIdentificationString)
        :
        :"eax", "ebx", "ecx", "edx"
    );
#else
    asm volatile
    (
        "xor %%eax, %%eax\n\t"
        "cpuid\n\t"
        "movl %%ebx, %0\n\t"
        "movl %%edx, 4(%0)\n\t"
        "movl %%ecx, $8(%0)"
        :"=m"(VendorIdentificationString)
        :
        :"eax", "ebx", "ecx", "edx"
    );
#endif

    printf("\nCheckIfGenuineIntel:  '%s'\n", (char *)&VendorIdentificationString[0]);
    return 1;
}
4

2 回答 2

1

这些行:

"movl %%edx, 4(%0)\n\t"
"movl %%ecx, $8(%0)"

应该:

"movl %%edx, 4+%0\n\t"
"movl %%ecx, 8+%0"

这似乎让 gcc 3.4.4 很高兴。

于 2009-12-18T19:15:59.147 回答
0

看看intel2gas,它是一个将 Intel 语法转换为 AT&T 语法的工具。

于 2010-01-01T12:48:29.490 回答