x86cpuid.c


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

#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;
}