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// Copyright (C) 2003-2008 Dolphin Project.
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, version 2.0.
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#ifdef _WIN32
#include <intrin.h>
#endif
#ifdef __linux__
//#include <config/i386/cpuid.h>
#include <xmmintrin.h>
void __cpuid(int info[4], int x) {}
#endif
#include <memory.h>
#include "Common.h"
#include "CPUDetect.h"
// This code was adapted from an example in MSDN:
CPUInfoStruct cpu_info;
void CPUInfoStruct::Detect()
{
#ifdef _M_IX86
Mode64bit = false;
#elif defined (_M_X64)
Mode64bit = true;
OS64bit = true;
#endif
numCores = 1;
#ifdef _WIN32
#ifdef _M_IX86
BOOL f64 = FALSE;
OS64bit = IsWow64Process(GetCurrentProcess(), &f64) && f64;
#endif
#endif
// __cpuid with an InfoType argument of 0 returns the number of
// valid Ids in CPUInfo[0] and the CPU identification string in
// the other three array elements. The CPU identification string is
// not in linear order. The code below arranges the information
// in a human readable form.
__cpuid(CPUInfo, 0);
nIds = CPUInfo[0];
memset(CPUString, 0, sizeof(CPUString));
*((int*)CPUString) = CPUInfo[1];
*((int*)(CPUString + 4)) = CPUInfo[3];
*((int*)(CPUString + 8)) = CPUInfo[2];
// Assume that everything non-intel is AMD
if (memcmp(CPUString, "GenuineIntel", 12) == 0)
{
isAMD = false;
}
else
{
isAMD = true;
}
// Get the information associated with each valid Id
for (unsigned int i = 0; i <= nIds; ++i)
{
__cpuid(CPUInfo, i);
// Interpret CPU feature information.
if (i == 1)
{
nSteppingID = CPUInfo[0] & 0xf;
nModel = (CPUInfo[0] >> 4) & 0xf;
nFamily = (CPUInfo[0] >> 8) & 0xf;
nProcessorType = (CPUInfo[0] >> 12) & 0x3;
nExtendedmodel = (CPUInfo[0] >> 16) & 0xf;
nExtendedfamily = (CPUInfo[0] >> 20) & 0xff;
nBrandIndex = CPUInfo[1] & 0xff;
nCLFLUSHcachelinesize = ((CPUInfo[1] >> 8) & 0xff) * 8;
nAPICPhysicalID = (CPUInfo[1] >> 24) & 0xff;
bSSE3NewInstructions = (CPUInfo[2] & 0x1) || false;
bMONITOR_MWAIT = (CPUInfo[2] & 0x8) || false;
bCPLQualifiedDebugStore = (CPUInfo[2] & 0x10) || false;
bThermalMonitor2 = (CPUInfo[2] & 0x100) || false;
nFeatureInfo = CPUInfo[3];
if (CPUInfo[2] & (1 << 23))
{
bPOPCNT = true;
}
if (CPUInfo[2] & (1 << 19))
{
bSSE4_1 = true;
}
if (CPUInfo[2] & (1 << 20))
{
bSSE4_2 = true;
}
}
}
// Calling __cpuid with 0x80000000 as the InfoType argument
// gets the number of valid extended IDs.
__cpuid(CPUInfo, 0x80000000);
nExIds = CPUInfo[0];
memset(CPUBrandString, 0, sizeof(CPUBrandString));
// Get the information associated with each extended ID.
for (unsigned int i = 0x80000000; i <= nExIds; ++i)
{
__cpuid(CPUInfo, i);
// Interpret CPU brand string and cache information.
if (i == 0x80000001)
{
// This block seems bugged.
nFeatureInfo2 = CPUInfo[1]; // ECX
bSSE5 = (nFeatureInfo2 & (1 << 11)) ? true : false;
bLZCNT = (nFeatureInfo2 & (1 << 5)) ? true : false;
bSSE4A = (nFeatureInfo2 & (1 << 6)) ? true : false;
bLAHFSAHF64 = (nFeatureInfo2 & (1 << 0)) ? true : false;
CPU64bit = (CPUInfo[2] & (1 << 29)) ? true : false;
}
else if (i == 0x80000002)
{
memcpy(CPUBrandString, CPUInfo, sizeof(CPUInfo));
}
else if (i == 0x80000003)
{
memcpy(CPUBrandString + 16, CPUInfo, sizeof(CPUInfo));
}
else if (i == 0x80000004)
{
memcpy(CPUBrandString + 32, CPUInfo, sizeof(CPUInfo));
}
else if (i == 0x80000006)
{
nCacheLineSize = CPUInfo[2] & 0xff;
nL2Associativity = (CPUInfo[2] >> 12) & 0xf;
nCacheSizeK = (CPUInfo[2] >> 16) & 0xffff;
}
else if (i == 0x80000008)
{
int numLSB = (CPUInfo[2] >> 12) & 0xF;
numCores = 1 << numLSB;
//int coresPerDie = CPUInfo[2] & 0xFF;
// numCores = coresPerDie;
}
}
// Display all the information in user-friendly format.
// printf_s("\n\nCPU String: %s\n", CPUString);
if (nIds < 1)
{
bOldCPU = true;
}
nIds = 1;
bx87FPUOnChip = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bVirtual_8086ModeEnhancement = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bDebuggingExtensions = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bPageSizeExtensions = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bTimeStampCounter = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bRDMSRandWRMSRSupport = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bPhysicalAddressExtensions = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bMachineCheckException = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bCMPXCHG8BInstruction = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bAPICOnChip = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bUnknown1 = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bSYSENTERandSYSEXIT = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bMemoryTypeRangeRegisters = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bPTEGlobalBit = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bMachineCheckArchitecture = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bConditionalMove_CompareInstruction = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bPageAttributeTable = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bPageSizeExtension = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bProcessorSerialNumber = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bCFLUSHExtension = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bUnknown2 = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bDebugStore = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bThermalMonitorandClockCtrl = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bMMXTechnology = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bFXSAVE_FXRSTOR = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bSSEExtensions = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bSSE2Extensions = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bSelfSnoop = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bHyper_threadingTechnology = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bThermalMonitor = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bUnknown4 = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
bPendBrkEN = (nFeatureInfo & nIds) ? true : false;
nIds <<= 1;
if (nExIds < 0x80000004)
{
strcpy(CPUBrandString, "(unknown)");
}
}
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