qzdoom/src/x86.h

#ifndef X86_H
#define X86_H

#include "basictypes.h"

struct CPUInfo	// 92 bytes
{
	union
	{
		char VendorID[16];
		DWORD dwVendorID[4];
	};
	union
	{
		char CPUString[48];
		DWORD dwCPUString[12];
	};

	BYTE Stepping;
	BYTE Model;
	BYTE Family;
	BYTE Type;

	BYTE BrandIndex;
	BYTE CLFlush;
	BYTE CPUCount;
	BYTE APICID;

	union
	{
		struct
		{
			DWORD bSSE3:1;
			DWORD DontCare1:8;
			DWORD bSSSE3:1;
			DWORD DontCare1a:9;
			DWORD bSSE41:1;
			DWORD bSSE42:1;
			DWORD DontCare2a:11;

			DWORD bFPU:1;
			DWORD bVME:1;
			DWORD bDE:1;
			DWORD bPSE:1;
			DWORD bRDTSC:1;
			DWORD bMSR:1;
			DWORD bPAE:1;
			DWORD bMCE:1;
			DWORD bCX8:1;
			DWORD bAPIC:1;
			DWORD bReserved1:1;
			DWORD bSEP:1;
			DWORD bMTRR:1;
			DWORD bPGE:1;
			DWORD bMCA:1;
			DWORD bCMOV:1;
			DWORD bPAT:1;
			DWORD bPSE36:1;
			DWORD bPSN:1;
			DWORD bCFLUSH:1;
			DWORD bReserved2:1;
			DWORD bDS:1;
			DWORD bACPI:1;
			DWORD bMMX:1;
			DWORD bFXSR:1;
			DWORD bSSE:1;
			DWORD bSSE2:1;
			DWORD bSS:1;
			DWORD bHTT:1;
			DWORD bTM:1;
			DWORD bReserved3:1;
			DWORD bPBE:1;

			DWORD DontCare2:22;
			DWORD bMMXPlus:1;		// AMD's MMX extensions
			DWORD bMMXAgain:1;		// Just a copy of bMMX above
			DWORD DontCare3:6;
			DWORD b3DNowPlus:1;
			DWORD b3DNow:1;
		};
		DWORD FeatureFlags[3];
	};

	BYTE AMDStepping;
	BYTE AMDModel;
	BYTE AMDFamily;
	BYTE bIsAMD;

	union
	{
		struct
		{
			BYTE DataL1LineSize;
			BYTE DataL1LinesPerTag;
			BYTE DataL1Associativity;
			BYTE DataL1SizeKB;
		};
		DWORD AMD_DataL1Info;
	};
};


extern "C" CPUInfo CPU;
struct PalEntry;

void CheckCPUID (CPUInfo *cpu);
void DumpCPUInfo (const CPUInfo *cpu);
void DoBlending_SSE2(const PalEntry *from, PalEntry *to, int count, int r, int g, int b, int a);

#endif