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CpuHypervisor

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git-svn-id: svn://ultimatepp.org/upp/trunk@11386 f0d560ea-af0d-0410-9eb7-867de7ffcac7
This commit is contained in:
cxl 2017-10-17 15:45:26 +00:00
parent b78b5ade79
commit b2ff8b33cd
2 changed files with 18 additions and 23 deletions
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40
uppsrc/Core/Cpu.cpp
View file

@ -1,4 +1,5 @@
#include "Core.h"
#include "cpuid.h"
namespace Upp {
@ -8,22 +9,15 @@ static bool sHasMMX;
static bool sHasSSE;
static bool sHasSSE2;
static bool sHasSSE3;
static bool sHypervisor;
static void sCheckCPU()
{
static bool done;
if(done) return;
done = true;
#ifdef PLATFORM_OSX11
sHasMMX = true;
sHasSSE = true;
sHasSSE2 = true;
#else
#ifdef CPU_AMD64
sHasMMX = true;
sHasSSE = true;
sHasSSE2 = true;
#else
unsigned int eax, ebx, ecx, edx;
ONCELOCK {
#ifdef COMPILER_MSC
dword info1;
dword info2;
@ -34,26 +28,26 @@ static void sCheckCPU()
mov info2, ecx
}
#else
dword info1;
dword info2;
__asm__("pushl %%ebx\n\tmovl $1, %%eax\n\tcpuid\n\tpopl %%ebx" : "=d" (info1), "=c" (info2) : : "%eax");
__get_cpuid(1, &eax, &ebx, &ecx, &edx);
#endif
sHasMMX = ((info1 >> 23) & 0x1);
sHasSSE = ((info1 >> 25) & 0x1);
sHasSSE2 = ((info1 >> 26) & 0x1);
sHasSSE3 = ((info2) & 0x1);
#endif
#endif
// https://en.wikipedia.org/wiki/CPUID#EAX.3D1:_Processor_Info_and_Feature_Bits
sHasMMX = edx & (1 << 23);
sHasSSE = edx & (1 << 25);
sHasSSE2 = edx & (1 << 26);
sHasSSE3 = ecx & 1;
sHypervisor = ecx & (1 << 31);
}
}
INITBLOCK {
// sCheckCPU();
}
bool CpuMMX() { sCheckCPU(); return sHasMMX; }
bool CpuSSE() { sCheckCPU(); return sHasSSE; }
bool CpuSSE2() { sCheckCPU(); return sHasSSE2; }
bool CpuSSE3() { sCheckCPU(); return sHasSSE3; }
bool CpuMMX() { sCheckCPU(); return sHasMMX; }
bool CpuSSE() { sCheckCPU(); return sHasSSE; }
bool CpuSSE2() { sCheckCPU(); return sHasSSE2; }
bool CpuSSE3() { sCheckCPU(); return sHasSSE3; }
bool CpuHypervisor() { sCheckCPU(); return sHypervisor; }
#ifdef PLATFORM_POSIX
#ifdef PLATFORM_BSD

1
uppsrc/Core/Defs.h
View file

@ -487,6 +487,7 @@ bool CpuMMX();
bool CpuSSE();
bool CpuSSE2();
bool CpuSSE3();
bool CpuHypervisor();
#endif
int CPU_Cores();