1999/0430/alphapc/clock.c (diff list | history)

1999/0429/sys/src/9/alphapc/clock.c:44,49 – 1999/0430/sys/src/9/alphapc/clock.c:44,50 (short | long | prev | next)
1999/0429		cycletimer(void) { ulong pcc;
1999/0430		vlong delta;
1999/0429		pcc = rpcc(nil) & 0xFFFFFFFF; if(m->cpuhz == 0){
1999/0429/sys/src/9/alphapc/clock.c:60,69 – 1999/0430/sys/src/9/alphapc/clock.c:61,71
1999/0429		m->cpuhz = hwrpb->cfreq; m->pcclast = pcc; } if(pcc < m->pcclast) m->fastclock += 0x100000000LL; m->fastclock += pcc;
1999/0430		delta = pcc - m->pcclast; if(delta < 0) delta += 0x100000000LL;
1999/0429		m->pcclast = pcc;
1999/0430		m->fastclock += delta;
1999/0429		return MACHP(0)->fastclock;
1999/0415		}
1999/0429/sys/src/9/alphapc/clock.c:106,111 – 1999/0430/sys/src/9/alphapc/clock.c:108,114
1999/0415		Clock0link *lp; static int count;
1999/0430		cycletimer();
1999/0415		/* HZ == 100, timer == 1024Hz. error < 1ms */ count += 100; if (count < 1024)