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UCLOCK.H
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C/C++ Source or Header
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1997-07-05
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/* +++Date last modified: 05-Jul-1997 */
/*
** UCLOCK.H
**
** Functions to perform microsecond accuracy timing operations
** and calculations.
**
** Adapted from free sources originally by:
** Kris Heidenstrom (kheidens@actrix.gen.nz)
**
** For additional information, ftp:
** oak.oakland.edu//SimTel/msdos/info/pctim*.zip.
**
** Modified by Bob Stout.
*/
#ifndef UCLOCK__H
#define UCLOCK__H
#include <dos.h>
#include <time.h>
#include "extkword.h"
/* Declarations and prototypes */
typedef struct { /* Only 20, of 24, bits are used */
unsigned short count;
unsigned long ticks;
} Uclock_T;
typedef double uclock_t;
/* Ticks per second - replaces CLK_TCK */
#define UCLK_TCK 1193181.667
/* uclock_t Midnight rollover value */
#define UCLK_RLVR (uclock_t)(0x001800af * 65536.0 + 0xffff)
/* Functions in UCLOCK_.ASM */
void CDECL Uclock_(Uclock_T *);
void CDECL SetMode2_(void);
#if defined(__cplusplus) && __cplusplus
extern "C" {
#endif
uclock_t usec_clock(Uclock_T *now);
uclock_t uclock_diff(Uclock_T *Start, Uclock_T *Stop, Uclock_T *Diff);
uclock_t uclock_cnvrt(Uclock_T *ticks);
void usec_delay(unsigned long usecs);
#if defined(__cplusplus) && __cplusplus
}
#endif
#endif /* UCLOCK__H */