From 00ac2b7d99eeebd6ea9aa7db8fee734cc6e9312d Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Fri, 24 Dec 1993 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1993-12-24

---
 carrera/clock.c  |  2 ++
 carrera/mem.h    |  2 +-
 carrera/screen.c | 10 +++++-----
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/carrera/clock.c b/carrera/clock.c
index 426e49c6a376c605a1a91f0e7d63ee15ef078403..ede4e853d21cf9c4407f52893e01a5551d64de9a 100644
--- a/carrera/clock.c
+++ b/carrera/clock.c
@@ -76,6 +76,8 @@ clock(Ureg *ur)
 		m->load = (m->load*19+nrun)/20;
 	}
 
+	kproftimer(ur->pc);
+
 	kmapinval();
 
 	if((active.machs&(1<<m->machno)) == 0)
diff --git a/carrera/mem.h b/carrera/mem.h
index c8d2123c7a475bda962692c688fb3da11ca46114..e5edb6455718b221c9b0b5b5fcd662b210e35c7f 100644
--- a/carrera/mem.h
+++ b/carrera/mem.h
@@ -140,7 +140,7 @@
 #define	PTEPERTAB	(PTEMAPMEM/BY2PG)
 #define STLBLOG		13
 #define STLBSIZE	(1<<STLBLOG)
-#define KPTELOG		6
+#define KPTELOG		7
 #define KPTESIZE	(1<<KPTELOG)
 #define SEGMAPSIZE	512
 
diff --git a/carrera/screen.c b/carrera/screen.c
index aa059cb64608d0ab6d613a7bb405c792df503b51..0c839b15d92e3903f42174655254f1925542ba6f 100644
--- a/carrera/screen.c
+++ b/carrera/screen.c
@@ -74,8 +74,8 @@ VGAmode dfltmode =
 	0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0f, 
 	0xff, 
 	/* attribute */
-	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 
-	0x38, 0x39, 0x3a, 0x3b, 0x3c, 0x3d, 0x3e, 0x3f, 
+	0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 
+	0x08, 0x09, 0x0a, 0x0b, 0x0c, 0x0d, 0x0e, 0x0f, 
 	0x01, 0x00, 0x0f, 0x00, 0x00, 
 	/* special */
 	0x00, 0x00, 0xbc, 0x00, 0x00, 0x00, 0x28, 0x00, 
@@ -443,7 +443,7 @@ setmode(VGAmode *v)
 	for(i = 0; i < sizeof(v->attribute); i++)
 		arout(i, v->attribute[i]);
 
-	EISAOUTB(0x3C6, 0xFF);	/* pel mask */
+	EISAOUTB(0x3C6, 0x0F);	/* pel mask */
 	EISAOUTB(0x3C8, 0x00);	/* pel write address */
 
 	EISAOUTB(0x3bf, 0x03);	/* hercules compatibility reg */
@@ -523,8 +523,8 @@ screenupdate(void)
 		for(i = 0; i < len; i += 8) {
 			s = (ulong*)(sp+i);
 			h = (ulong*)(hp+i);
-			in1 = s[0];
-			in2 = s[1];
+			in1 = ~s[0];
+			in2 = ~s[1];
 			h[0] = swiz(in2);
 			h[1] = swiz(in1);
 		}