From 2d32370b89cc5590ea216bf512f2a3112726dcab Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Sun, 28 Feb 1999 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1999-02-28

---
 carrera/clock.c  |  6 +++---
 carrera/devrtc.c | 11 -----------
 pc/clock.c       | 13 -------------
 pc/i8253.c       |  6 +++---
 port/devcons.c   | 31 ++++++++++++++++++++++++++++++-
 port/devsd.c     | 16 ++++++++--------
 6 files changed, 44 insertions(+), 39 deletions(-)

diff --git a/carrera/clock.c b/carrera/clock.c
index 7f7af44aa2688b6c2d678fb951254bd21a15b3e8..4267646dc81f85087ac71d573cf3ec9c8cff0672 100644
--- a/carrera/clock.c
+++ b/carrera/clock.c
@@ -124,10 +124,10 @@ clock(Ureg *ur)
 	}
 }
 
-uvlong
+vlong
 fastticks(uvlong *hz)
 {
 	if(hz)
-		*hz = HZ;
-	return m->ticks;
+		*hz = HZ*100;
+	return (vlong)m->ticks*100;
 }
diff --git a/carrera/devrtc.c b/carrera/devrtc.c
index 811b8e01020492392c2612cd1e3ac99cec7c030d..c54acb6aea5b3c8e48bad722f0bbf2277472145f 100644
--- a/carrera/devrtc.c
+++ b/carrera/devrtc.c
@@ -176,7 +176,6 @@ _rtctime(void)
 long
 rtctime(void)
 {
-#ifdef notdef
 	int i;
 	long t, ot;
 
@@ -193,9 +192,6 @@ rtctime(void)
 	iunlock(&rtclock);
 
 	return t;
-#else
-	return boottime+TK2SEC(MACHP(0)->ticks);
-#endif /* notdef */
 }
 
 static long	 
@@ -264,8 +260,6 @@ rtcwrite(Chan *c, void *buf, long n, vlong off)
 			rtc.year = PUTBCD(rtc.year);
 		}
 
-/* disgusting hack because RTC doesn't work and m->ticks drifts */
-if(boottime == 0){
 		ilock(&rtclock);
 		/* set clock values */
 		x = (*(uchar*)Rtcindex)&~0x7f;
@@ -282,11 +276,6 @@ if(boottime == 0){
 		*(uchar*)Rtcindex = x|Year;
 		*(uchar*)Rtcdata = rtc.year;
 		iunlock(&rtclock);
-}else{
-		splhi();
-		MACHP(0)->ticks = HZ*(secs - boottime);	/* inverse of SEC2TK() */
-		spllo();
-}
 
 		return n;
 	case Qnvram:
diff --git a/pc/clock.c b/pc/clock.c
index a036d7efd41ee324490a55f963cca8e2a0347869..b4e3a5cd7e7b5caff2f99d77d548f33c04848b8a 100644
--- a/pc/clock.c
+++ b/pc/clock.c
@@ -95,16 +95,3 @@ microdelay(int microsecs)
 		microsecs = 1;
 	aamloop(microsecs);
 }
-
-ulong
-TK2MS(ulong ticks)
-{
-	uvlong t, hz;
-
-	t = ticks;
-	hz = HZ;
-	t *= 1000L;
-	t = t/hz;
-	ticks = t;
-	return ticks;
-}
diff --git a/pc/i8253.c b/pc/i8253.c
index 0e35c9934c99ebdeab0a3e5d2896c42b2c5de8fd..f3b9ca2f39d6bfe227fc7984d280405391e81b91 100644
--- a/pc/i8253.c
+++ b/pc/i8253.c
@@ -131,12 +131,12 @@ i8253enable(void)
 
 /*
  *  return time elapsed since clock start in
- *  10ths of nanoseconds
+ *  100 times hz
  */
 uvlong
 i8253read(uvlong *hz)
 {
 	if(hz)
-		*hz = HZ;
-	return m->ticks;
+		*hz = HZ*100;
+	return m->ticks*100;
 }
diff --git a/port/devcons.c b/port/devcons.c
index d9364b3f9fe3f106eb08717dc20e3672dedffc23..4bc6304822b5e54404b03c99d62871066894fec5 100644
--- a/port/devcons.c
+++ b/port/devcons.c
@@ -394,12 +394,41 @@ static Dirtab consdir[]={
 	"user",		{Quser},	NAMELEN,	0666,
 };
 
+uvlong billion = 1000000000ULL;
+uvlong bilbil = 1000000000ULL*1000000000ULL;
+
+//
+//  this routine is a hack till we get 64 bit ops faster
+//
 int
 readvlnum(ulong off, char *buf, ulong n, uvlong val, int size)
 {
 	char tmp[64];
+	char num[64];
+	ulong y;
+	int i;
 
-	snprint(tmp, sizeof(tmp), "%*.0ulld", size-1, val);
+	i = 0;
+	if(val > bilbil){
+		y = val/bilbil;
+		i += sprint(num+i, "%lud", y);
+		val -= y*bilbil;
+		y = val/billion;
+		i += sprint(num+i, "%9.9lud", y);
+		val -= y*billion;
+		y = val;
+		sprint(num+i,  "%9.9lud", y);
+	} else if(val > billion){
+		y = val/billion;
+		i += sprint(num+i, "%lud", y);
+		val -= y*billion;
+		y = val;
+		sprint(num+i, "%9.9lud", y);
+	} else {
+		y = val;
+		sprint(num+i, "%lud", y);
+	}
+	snprint(tmp, sizeof(tmp), "%*s", size-1, num);
 	tmp[size-1] = ' ';
 	if(off >= size)
 		return 0;
diff --git a/port/devsd.c b/port/devsd.c
index 65543ae2597e73997f0eb54b74775aeaca359329..d83d77cf4acfe730852a5bb1fba75cbbdf28ea5e 100644
--- a/port/devsd.c
+++ b/port/devsd.c
@@ -132,12 +132,12 @@ sdinit(void)
 			type = scratch[0] & 0x1F;
 
 			/*
-			 * Read-capacity is mandatory for TypeDA, TypeMO and TypeCD.
-			 * It may return 'not ready' if TypeDA is not spun up,
-			 * TypeMO or TypeCD are not loaded or just plain slow getting
-			 * their act together after a reset.
-			 * If 'not ready' comes back, try starting a TypeDA and punt
-			 * the get capacity until the drive is attached.
+			 * Read-capacity is mandatory for TypeDA, TypeMO and
+			 * TypeCD. It may return 'not ready' if TypeDA is not
+			 * spun up, TypeMO or TypeCD are not loaded or just
+			 * plain slow getting their act together after a reset.
+			 * If 'not ready' comes back, try starting a TypeDA and
+			 * punt the get capacity until the drive is attached.
 			 */
 			if(scsicap(d->t, d->lun, &d->size, &d->bsize) != STok) {
 				nbytes = 0xFF;
@@ -150,9 +150,9 @@ sdinit(void)
 				case 0x02:
 					break;
 				case 0x06:
-					if(scratch[12] == 0x28 && scratch[13] == 0)
+					if(scratch[12] == 0x28 && !scratch[13])
 						break;
-					if(scratch[12] == 0x29 && scratch[13] == 0)
+					if(scratch[12] == 0x29 && !scratch[13])
 						break;
 					/*FALLTHROUGH*/
 				default: