~kris/9p

9hist

ref: 725df887ee04f36f44a028091facf2cc698135fa 9hist/mtx/clock.c -rw-r--r-- 665 bytes
725df887 — David du Colombier Plan 9 from Bell Labs 2001-12-07 24 years ago
                                                                                
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#include	"u.h"
#include	"../port/lib.h"
#include	"mem.h"
#include	"dat.h"
#include	"fns.h"
#include	"io.h"
#include	"ureg.h"

void
clockintr(Ureg *ureg)
{
	// this needs to be here for synchronizing mp clocks
	// see pc/mp.c's squidboy()
	fastticks(nil);

	if(m->flushmmu){
		if(up)
			flushmmu();
		m->flushmmu = 0;
	}

	portclock(ureg);
}

void
delay(int l)
{
	ulong i, j;

//	j = m->delayloop;
//	while(l-- > 0)
//		for(i=0; i < j; i++)
//			;
}

void
microdelay(int l)
{
	ulong i;

//	l *= m->delayloop;
//	l += 500;
//	l /= 1000;
//	if(l <= 0)
//		l = 1;
//	for(i = 0; i < l; i++)
//		;
}

vlong
fastticks(uvlong *hz)
{
	if(hz)
		*hz = HZ;
	return m->ticks;
}