np2/timing.c - diff

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version 1.3, 2003/10/23 12:58:44	version 1.6, 2004/02/07 21:23:21
Line 5	Line 5
#include "timing.h"	#include "timing.h"


static UINT timercnt = 0;	typedef struct {
static UINT32 tick = 0;	UINT32 tick;
static UINT32 cnt = 0;	UINT cnt;
	UINT32 fraction;
	} TIMING;

	static TIMING timing;


void timing_reset(void) {	void timing_reset(void) {

cnt = 0;	timing.tick = GETTICK();
timercnt = 0;	timing.cnt = 0;
tick = GETTICK();	timing.fraction = 0;
}	}

void timing_setcount(UINT value) {	void timing_setcount(UINT value) {

timercnt = value;	timing.cnt = value;
}	}

UINT timing_getcount(void) { // ver0.12 60.0Hz вк 56.4Hz	UINT timing_getcount(void) {

UINT32 ticknow;	UINT32 ticknow;
UINT32 span;	UINT32 span;
UINT steps;	UINT steps;

ticknow = GETTICK();	ticknow = GETTICK();
span = ticknow - tick;	span = ticknow - timing.tick;
if (span) {	if (span) {
fddmtr_callback(ticknow);	fddmtr_callback(ticknow);

tick = ticknow;	timing.tick = ticknow;
if (span < 1000) {	if (span < 1000) {
cnt += (span * 388);	timing.fraction += (span * 388);
steps = cnt / 6875;	steps = timing.fraction / 6875;
timercnt += steps;	timing.cnt += steps;
cnt -= (steps * 6875);	timing.fraction -= (steps * 6875);
}	}
else {	else {
cnt = 0;	timing.fraction = 0;
timercnt += 56;	timing.cnt += 56;
}	}
}	}
return(timercnt);	return(timing.cnt);
}	}

void timing_term(void) {	void timing_term(void) {

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