#include "u.h"#include "../port/lib.h"#include "mem.h"#include "dat.h"#include "fns.h"#include "io.h"#include "ureg.h" /* *  this is called both by the mp's clock interrupt and *  by the clockintr0 for the i8253 */voidclockintr(Ureg* ureg, void*){	/* this has to get called every tick or the 8253 timer will overflow */	fastticks(nil); 	if(m->flushmmu){		if(up)			flushmmu();		m->flushmmu = 0;	} 	portclock(ureg);} voiddelay(int millisecs){	millisecs *= m->loopconst;	if(millisecs <= 0)		millisecs = 1;	aamloop(millisecs);} voidmicrodelay(int microsecs){	microsecs *= m->loopconst;	microsecs /= 1000;	if(microsecs <= 0)		microsecs = 1;	aamloop(microsecs);} ulongTK2MS(ulong ticks){	uvlong t, hz; 	t = ticks;	hz = HZ;	t *= 1000L;	t = t/hz;	ticks = t;	return ticks;}