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Using __cpuid intrinsic on x86 and x64 windows

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This commit is contained in:
Ianos Gnatiuc 2006-09-24 15:27:44 +00:00
parent abc9111f96
commit 7ee7d90171
1 changed files with 19 additions and 43 deletions
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58
goldlib/gall/gutlvers.cpp
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@ -31,6 +31,7 @@
#if defined(__WIN32__)
#include <windows.h>
#include <intrin.h>
#elif defined(__GNUC__)
#include <sys/utsname.h>
#endif
@ -49,23 +50,14 @@
// ------------------------------------------------------------------
#if defined(_M_X64)
inline static bool HaveCPUID()
{
return false;
}
#else
inline static bool HaveCPUID()
{
// TO_PORT_TAG: CPUID
#if defined(_MSC_VER)
__try
{
__asm
{
xor eax, eax
cpuid
}
int CPUInfo[4];
__cpuid(CPUInfo, 0);
}
__except(EXCEPTION_EXECUTE_HANDLER)
{
@ -79,7 +71,6 @@ inline static bool HaveCPUID()
return false;
#endif
}
#endif
// ------------------------------------------------------------------
@ -333,12 +324,6 @@ static void cpuname(int family, int model, const char *v_name, char *m_name)
// ------------------------------------------------------------------
#if defined(_M_X64)
char *gcpuid(char *_cpuname)
{
return "";
}
#else
char *gcpuid(char *_cpuname)
{
#if defined(__GNUC__) && defined(__i386__) || defined(_MSC_VER)
@ -369,33 +354,22 @@ char *gcpuid(char *_cpuname)
#endif
#if defined(_MSC_VER)
#undef and // and is defined as &&, this is conflicted with assembler instruction "and"
__asm
{
int CPUInfo[4];
// get the vendor string
xor eax, eax
cpuid
// mov scpuid.cpu_high, eax
mov scpuid.dw.dw0, ebx
mov scpuid.dw.dw1, edx
mov scpuid.dw.dw2, ecx
__cpuid(CPUInfo, 0);
scpuid.dw.dw0 = CPUInfo[1];
scpuid.dw.dw1 = CPUInfo[3];
scpuid.dw.dw2 = CPUInfo[2];
// get the CPU family, model, stepping, features bits
mov eax, 1
cpuid
// mov scpuid.features, edx
mov bx, ax
and ax, 0x0F0F // 3855 // 0x0F0F
mov scpuid.stepping, al
mov scpuid.family, ah
shr bl, 4
mov scpuid.model,bl
}
__cpuid(CPUInfo, 1);
scpuid.stepping = CPUInfo[0] & 0x0F;
scpuid.model = (CPUInfo[0] >> 4) & 0x0F;
scpuid.family = (CPUInfo[0] >> 8) & 0x0F;
#define and &&
cpuname( scpuid.family, scpuid.model, scpuid.vendor, _cpuname);
cpuname(scpuid.family, scpuid.model, scpuid.vendor, _cpuname);
#elif defined(__GNUC__) && defined(__i386__)
@ -553,7 +527,6 @@ char *gcpuid(char *_cpuname)
return _cpuname;
}
#endif
// ------------------------------------------------------------------
@ -667,6 +640,9 @@ char* ggetosstring(void) {
break;
#ifdef PROCESSOR_ARCHITECTURE_AMD64
case PROCESSOR_ARCHITECTURE_AMD64:
if (HaveCPUID())
gcpuid(processor);
else
sprintf(processor, "AMD64-%d", si.wProcessorLevel);
break;
#endif