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Added MSVC functions to cpuid_x86.c to replace gcc-specific ASM.

This commit is contained in:
Hank Anderson 2015-01-01 21:02:48 -06:00
parent 1a41022e3e
commit 92cdac5f87
1 changed files with 30 additions and 4 deletions
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34
cpuid_x86.c
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@ -40,6 +40,12 @@
#include <string.h>
#include "cpuid.h"
#ifdef _MSC_VER
#define C_INLINE __inline
#else
#define C_INLINE inline
#endif
/*
#ifdef NO_AVX
#define CPUTYPE_HASWELL CPUTYPE_NEHALEM
@ -53,12 +59,26 @@
#endif
*/
#ifdef _MSC_VER
void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx)
{
int cpuInfo[4] = {-1};
__cpuid(cpuInfo, op);
*eax = cpuInfo[0];
*ebx = cpuInfo[1];
*ecx = cpuInfo[2];
*edx = cpuInfo[3];
}
#else
#ifndef CPUIDEMU
#if defined(__APPLE__) && defined(__i386__)
void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx);
#else
static inline void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx){
static C_INLINE void cpuid(int op, int *eax, int *ebx, int *ecx, int *edx){
#if defined(__i386__) && defined(__PIC__)
__asm__ __volatile__
("mov %%ebx, %%edi;"
@ -115,14 +135,16 @@ void cpuid(unsigned int op, unsigned int *eax, unsigned int *ebx, unsigned int *
#endif
static inline int have_cpuid(void){
#endif // _MSC_VER
static C_INLINE int have_cpuid(void){
int eax, ebx, ecx, edx;
cpuid(0, &eax, &ebx, &ecx, &edx);
return eax;
}
static inline int have_excpuid(void){
static C_INLINE int have_excpuid(void){
int eax, ebx, ecx, edx;
cpuid(0x80000000, &eax, &ebx, &ecx, &edx);
@ -130,10 +152,14 @@ static inline int have_excpuid(void){
}
#ifndef NO_AVX
static inline void xgetbv(int op, int * eax, int * edx){
static C_INLINE void xgetbv(int op, int * eax, int * edx){
//Use binary code for xgetbv
#ifdef _MSC_VER
*eax = __xgetbv(op);
#else
__asm__ __volatile__
(".byte 0x0f, 0x01, 0xd0": "=a" (*eax), "=d" (*edx) : "c" (op) : "cc");
#endif
}
#endif