From 4db613d839435ac845bcc69539d9f7c5d4a87347 Mon Sep 17 00:00:00 2001
From: David du Colombier <0intro@gmail.com>
Date: Wed, 24 Aug 1994 00:00:00 +0000
Subject: [PATCH] Plan 9 from Bell Labs 1994-08-24

---
 carrera/l.s | 4 ++++
 pc/trap.c   | 2 +-
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/carrera/l.s b/carrera/l.s
index 52ec0eadad86f9c7fc2a1db955743ebfcb39cf3d..e8639ef850cb2be28724760ce0651b3a85aa4774 100644
--- a/carrera/l.s
+++ b/carrera/l.s
@@ -807,6 +807,8 @@ TEXT	uvst(SB), $-4		/* uvst(address, src) */
 TEXT	fwblock(SB), $-4	/* fwblock(void*port, void *block, csum) */
 	MOVW	4(FP), R2
 	MOVW	8(FP), R6
+	SLLV	$32, R6
+	SRLV	$32, R6		/* zero extend */
 
 	MOVW	$32, R4
 fwloop:
@@ -829,6 +831,8 @@ fwloop:
 TEXT	frblock(SB), $-4	/* frblock(void*port, void *block, csum) */
 	MOVW	4(FP), R2
 	MOVW	8(FP), R6
+	SLLV	$32, R6
+	SRLV	$32, R6		/* zero extend */
 
 	MOVW	$32, R4
 frloop:
diff --git a/pc/trap.c b/pc/trap.c
index d1d2338e6d459aefba3ea5933e900c6b300248de..e47c0d158ba6cb2174066b97b54159a10021dae2 100644
--- a/pc/trap.c
+++ b/pc/trap.c
@@ -191,7 +191,7 @@ trapinit(void)
 
 	/*
 	 *  Set up the second 8259 interrupt processor.
-	 *  Make 8259 interrupts start at CPU vector Int0vec.
+	 *  Make 8259 interrupts start at CPU vector Int1vec.
 	 *  Set the 8259 as master with level triggered
 	 *  input with fully nested interrupts.
 	 */