x86cpuid.c


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#include <signal.h>

void nope()
{
	exit(1);
}

int main()
{
	unsigned long x[4];
	unsigned long y[4];
	int i;
	int j;
	char c;

	signal(SIGILL,nope);

	x[0] = 0;
	x[1] = 0;
	x[2] = 0;
	x[3] = 0;

	asm volatile(".byte 15;.byte 162" : "=a"(x[0]),"=b"(x[1]),"=c"(x[3]),"=d"(x[2]) : "0"(0) );
	if (!x[0]) return 0;
	asm volatile(".byte 15;.byte 162" : "=a"(y[0]),"=b"(y[1]),"=c"(y[2]),"=d"(y[3]) : "0"(1) );

	for (i = 1;i < 4;++i){
		for (j = 0;j < 4;++j) {
			c = x[i] >> (8 * j);
			if (c < 32) c = 32;
			if (c > 126) c = 126;
			putchar(c);
		}
	}

	printf("-%08x-%08x\n",y[0],y[3]);

	return 0;
}