1993/0226/gnot/clock.c (diff list | history)

gnot/clock.c on 1990/03091
1990/03091		#include "u.h"
1992/0321		#include "../port/lib.h"
1990/03091		#include "mem.h" #include "dat.h" #include "fns.h" #include "io.h" #include "ureg.h" void delay(int ms) { int i; ms *= 1000; /* experimentally determined */ for(i=0; i<ms; i++) ; } void clock(Ureg *ur) { Proc *p;
1991/1113		int user, nrun = 0;
1990/03091
1991/1112		user = (ur->sr&SUPER) == 0;
1992/0805		if(user){
1991/1112		u->dbgreg = ur;
1992/0805		u->p->pc = ur->pc; }
1991/1112
1990/03091		SYNCREG[1] = 0x5F; /* clear interrupt */ m->ticks++; p = m->proc;
1990/0312		if(p){
1991/1113		nrun = 1;
1990/0312		p->pc = ur->pc;
1990/1004		if (p->state==Running) p->time[p->insyscall]++;
1990/0312		}
1991/1113		nrun = (nrdy+nrun)*1000; MACHP(0)->load = (MACHP(0)->load*19+nrun)/20;
1990/1211		checkalarms();
1990/0321		kbdclock();
1991/1003		duartclock();
1993/0226		mouseclock();
1991/1007		kproftimer(ur->pc);
1990/1004		if((ur->sr&SPL(7)) == 0 && p && p->state==Running){
1991/0614		if(anyready()){ if(p->hasspin) p->hasspin = 0; else sched(); }
1991/1112		if(user){
1991/0710		(*(ulong*)(USTKTOP-BY2WD)) += TK2MS(1); /* profiling clock */
1991/1112		notify(ur);
1991/0710		}
1990/03091		} }