nethercote | 288b766 | 2004-01-20 09:24:53 +0000 | [diff] [blame] | 1 | #include <stdio.h> |
| 2 | #include <stdlib.h> |
| 3 | #include <string.h> |
| 4 | |
nethercote | 1018bdd | 2004-02-11 23:33:29 +0000 | [diff] [blame] | 5 | static __inline__ void cpuid(unsigned int n, |
nethercote | 288b766 | 2004-01-20 09:24:53 +0000 | [diff] [blame] | 6 | unsigned int *a, unsigned int *b, |
| 7 | unsigned int *c, unsigned int *d) |
| 8 | { |
| 9 | __asm__ __volatile__ ( |
| 10 | "cpuid" |
| 11 | : "=a" (*a), "=b" (*b), "=c" (*c), "=d" (*d) /* output */ |
| 12 | : "0" (n) /* input */ |
| 13 | ); |
| 14 | } |
| 15 | |
| 16 | int main(int argc, char **argv) |
| 17 | { |
nethercote | 1018bdd | 2004-02-11 23:33:29 +0000 | [diff] [blame] | 18 | unsigned int level = 0; |
nethercote | 288b766 | 2004-01-20 09:24:53 +0000 | [diff] [blame] | 19 | unsigned int mask = 0; |
| 20 | unsigned int a; |
| 21 | unsigned int b; |
| 22 | unsigned int c; |
| 23 | unsigned int d; |
| 24 | |
nethercote | 1018bdd | 2004-02-11 23:33:29 +0000 | [diff] [blame] | 25 | if ( argc == 2 ) { |
| 26 | if ( strcmp( argv[1], "cmov" ) == 0 ) { |
| 27 | level = 1; |
| 28 | mask = 1 << 15; |
| 29 | } else if ( strcmp( argv[1], "mmx" ) == 0 ) { |
| 30 | level = 1; |
| 31 | mask = 1 << 23; |
| 32 | } else if ( strcmp( argv[1], "mmxext" ) == 0 ) { |
| 33 | level = 0x80000001; |
| 34 | mask = 1 << 22; |
| 35 | } else if ( strcmp( argv[1], "sse" ) == 0 ) { |
| 36 | level = 1; |
| 37 | mask = 1 << 25; |
| 38 | } else if ( strcmp( argv[1], "sse2" ) == 0 ) { |
| 39 | level = 1; |
| 40 | mask = 1 << 26; |
| 41 | } |
nethercote | 288b766 | 2004-01-20 09:24:53 +0000 | [diff] [blame] | 42 | } |
| 43 | |
nethercote | 1018bdd | 2004-02-11 23:33:29 +0000 | [diff] [blame] | 44 | if ( level == 0 || mask == 0 ) { |
| 45 | fprintf( stderr, "usage: cputest [cmov|mmx|mmxext|sse|sse2]\n" ); |
nethercote | 288b766 | 2004-01-20 09:24:53 +0000 | [diff] [blame] | 46 | exit( 1 ); |
| 47 | } |
| 48 | |
nethercote | 1018bdd | 2004-02-11 23:33:29 +0000 | [diff] [blame] | 49 | cpuid( level & 0x80000000, &a, &b, &c, &d ); |
nethercote | 288b766 | 2004-01-20 09:24:53 +0000 | [diff] [blame] | 50 | |
nethercote | 1018bdd | 2004-02-11 23:33:29 +0000 | [diff] [blame] | 51 | if ( a >= level ) { |
| 52 | cpuid( level, &a, &b, &c, &d ); |
nethercote | 288b766 | 2004-01-20 09:24:53 +0000 | [diff] [blame] | 53 | |
| 54 | if ( ( d & mask ) != 0 ) exit( 0 ); |
| 55 | } |
| 56 | |
| 57 | exit( 1 ); |
| 58 | } |