diff options
| -rw-r--r-- | src/cpuid.h | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/src/cpuid.h b/src/cpuid.h index eab9110..310f0c2 100644 --- a/src/cpuid.h +++ b/src/cpuid.h @@ -27,10 +27,7 @@ #ifndef _FASTD_CPUID_H_ #define _FASTD_CPUID_H_ -#if !(defined(__i386__) || defined(__x86_64__)) -#error Tried to include cpuid.h on a non-x86 system -#endif - +#include <cpuid.h> #include <stdint.h> @@ -40,8 +37,11 @@ static inline uint64_t fastd_cpuid(void) { - uint32_t edx, ecx; - __asm__("cpuid" : "=d"(edx), "=c"(ecx) : "a"((uint32_t)1)); + unsigned eax, ebc, ecx, edx; + + if (!__get_cpuid(1, &eax, &ebc, &ecx, &edx)) + return 0; + return ((uint64_t)ecx) << 32 | edx; } |