Module Name: src
Committed By: ragge
Date: Mon Mar 19 15:37:56 UTC 2018
Modified Files:
src/sys/arch/vax/boot/common: srt0.S
Log Message:
Do not use movc3 to copy boot program, it may be larger than 64k.
To generate a diff of this commit:
cvs rdiff -u -r1.5 -r1.6 src/sys/arch/vax/boot/common/srt0.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/vax/boot/common/srt0.S
diff -u src/sys/arch/vax/boot/common/srt0.S:1.5 src/sys/arch/vax/boot/common/srt0.S:1.6
--- src/sys/arch/vax/boot/common/srt0.S:1.5 Mon May 22 17:00:19 2017
+++ src/sys/arch/vax/boot/common/srt0.S Mon Mar 19 15:37:56 2018
@@ -1,4 +1,4 @@
-/* $NetBSD: srt0.S,v 1.5 2017/05/22 17:00:19 ragge Exp $ */
+/* $NetBSD: srt0.S,v 1.6 2018/03/19 15:37:56 ragge Exp $ */
/*
* Copyright (c) 1994 Ludd, University of Lule}, Sweden.
* All rights reserved.
@@ -49,7 +49,9 @@ ALTENTRY(start)
movl $_C_LABEL(start), %r3 # get where we want to be
cmpl %r1,%r3 # are we where we want to be?
beql relocated # already relocated, skip copy
- movc3 %r0,(%r1),(%r3) # copy
+1: movb (%r1)+,(%r3)+ # copy
+ sobgtr %r0,1b
+
subl3 $_C_LABEL(edata), $_C_LABEL(end), %r2
movc5 $0,(%r3),$0,%r2,(%r3) # Zero bss
