1992/0914/ss/clock.c (diff list | history)

1992/0914/sys/src/9/ss/clock.c:1,79 – 1993/0501/sys/src/9/ss/clock.c:0 (short | long | prev)
Deleted. rsc Mon Mar 7 10:33:09 2005
1990/1223		#include "u.h"
1992/0321		#include "../port/lib.h"
1990/1223		#include "mem.h" #include "dat.h" #include "fns.h" #include "io.h"                  #include "ureg.h"                  void delay(int ms) { int i;
1992/0820		ms *= 6666; /* experimentally determined */ if(conf.ss2) ms *= 2;
1990/1223		for(i=0; i<ms; i++) ; }
1990/1227		typedef struct Ctr Ctr; struct Ctr { ulong ctr0; ulong lim0; ulong ctr1; ulong lim1; }; Ctr *ctr;
1990/1223		void
1990/1227		clockinit(void) { KMap *k;                  k = kmappa(CLOCK, PTENOCACHE|PTEIO); ctr = (Ctr*)k->va; ctr->lim1 = (CLOCKFREQ/HZ)<<10; }                  void
1990/1223		clock(Ureg *ur) { Proc *p;
1991/1114		ulong i, nrun = 0;
1990/1223
1990/1227		i = ctr->lim1; /* clear interrupt */ USED(i);
1990/1223		m->ticks++; p = m->proc; if(p){
1991/1113		nrun = 1;
1990/1223		p->pc = ur->pc; if (p->state==Running) p->time[p->insyscall]++; }
1991/1113		nrun = (nrdy+nrun)*1000; MACHP(0)->load = (MACHP(0)->load*19+nrun)/20;
1990/1223		checkalarms(); kbdclock(); mouseclock();
1991/1003		sccclock();
1991/1006		kproftimer(ur->pc);
1992/0807		if(m->fpunsafe) return;
1992/0914		if((ur->psr&SPL(0xF))==0 && p && p->state==Running) {
1991/0821		if(anyready()){ if(p->hasspin) p->hasspin = 0; else sched(); }
1992/0811		if((ur->psr&PSRPSUPER) == 0)
1991/1113		*(ulong*)(USTKTOP-BY2WD) += TK2MS(1);
1990/1223		} }