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#ifndef CRYPTOPP_CPU_H
#define CRYPTOPP_CPU_H
#include "config.h"
NAMESPACE_BEGIN(CryptoPP)
#if defined(CRYPTOPP_X86_ASM_AVAILABLE) || _MSC_VER >= 1400
#define CRYPTOPP_CPUID_AVAILABLE
// these should not be used directly
extern bool g_x86DetectionDone;
extern bool g_hasSSE2, g_hasMMX, g_hasSSSE3, g_isP4;
extern int g_cacheLineSize;
void DetectX86Features();
bool CpuId(word32 input, word32 *output);
#if !CRYPTOPP_BOOL_X64
inline bool HasSSE2()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasSSE2;
}
inline bool HasMMX()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasMMX;
}
#endif
inline bool HasSSSE3()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_hasSSSE3;
}
inline bool IsP4()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_isP4;
}
inline int GetCacheLineSize()
{
if (!g_x86DetectionDone)
DetectX86Features();
return g_cacheLineSize;
}
#else
inline int GetCacheLineSize()
{
return CRYPTOPP_L1_CACHE_LINE_SIZE;
}
#endif // #ifdef CRYPTOPP_X86_ASM_AVAILABLE || _MSC_VER >= 1400
#if CRYPTOPP_BOOL_X64
inline bool HasSSE2()
{
return true;
}
inline bool HasMMX()
{
return true;
}
#endif
#if defined(__GNUC__)
// define these in two steps to allow arguments to be expanded
#define GNU_AS1(x) #x ";"
#define GNU_AS2(x, y) #x ", " #y ";"
#define GNU_AS3(x, y, z) #x ", " #y ", " #z ";"
#define GNU_ASL(x) "\n" #x ":"
#define GNU_ASJ(x, y, z) #x " " #y #z ";"
#define AS1(x) GNU_AS1(x)
#define AS2(x, y) GNU_AS2(x, y)
#define AS3(x, y, z) GNU_AS3(x, y, z)
#define ASS(x, y, a, b, c, d) #x ", " #y ", " #a "*64+" #b "*16+" #c "*4+" #d ";"
#define ASL(x) GNU_ASL(x)
#define ASJ(x, y, z) GNU_ASJ(x, y, z)
#define ASC(x, y) #x " " #y ";"
#else
#define AS1(x) __asm {x}
#define AS2(x, y) __asm {x, y}
#define AS3(x, y, z) __asm {x, y, z}
#define ASS(x, y, a, b, c, d) __asm {x, y, _MM_SHUFFLE(a, b, c, d)}
#define ASL(x) __asm {label##x:}
#define ASJ(x, y, z) __asm {x label##y}
#define ASC(x, y) __asm {x label##y}
#endif
// GNU assembler doesn't seem to have mod operator
#define ASM_MOD(x, y) ((x)-((x)/(y))*(y))
NAMESPACE_END
#endif
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