ui64.h

来自「vc写的SSE2优化离散余弦变换」· C头文件 代码 · 共 38 行

//***************************************************************************/
//*
//*                  Copyright (c) 1998-99 Intel Corporation.
//*                         All rights reserved.
//*
//*
//***************************************************************************/
//
#ifndef UI64_H
#define UI64_H

#ifdef __cplusplus
extern "C" {
#endif

typedef struct {
        UINT	l;
        UINT	h;
} UINT64;

typedef UINT64*         PUINT64;

#define dCONST33BIT 4.294967296e9
#define TSC2DOUBLE(X,Y) (double)((double)(Y)+dCONST33BIT*(double)(X))
#define MKDBL(XX)	(double)((double)(XX.l)+dCONST33BIT*(double)(XX.h))


void Addui64(PUINT64, PUINT64);
void Subui64(PUINT64, PUINT64);
void RDTSCTimer(PUINT64);

#ifdef __cplusplus
}
#endif

#endif