[src/trunk]: src/sys/arch/hppa/hppa If arg3 is zero then fill it with the val...

[skrll <skrll%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/943abeddb1dc
branches:  trunk
changeset: 455889:943abeddb1dc
user:      skrll <skrll%NetBSD.org@localhost>
date:      Tue Apr 16 20:33:36 2019 +0000

description:
If arg3 is zero then fill it with the value of 'end'.  Helps booting
with qemu.

diffstat:

 sys/arch/hppa/hppa/locore.S |  10 +++++++++-
 1 files changed, 9 insertions(+), 1 deletions(-)

diffs (24 lines):

diff -r b9b48b3e8166 -r 943abeddb1dc sys/arch/hppa/hppa/locore.S
--- a/sys/arch/hppa/hppa/locore.S       Tue Apr 16 19:38:14 2019 +0000
+++ b/sys/arch/hppa/hppa/locore.S       Tue Apr 16 20:33:36 2019 +0000
@@ -1,4 +1,4 @@
-/*     $NetBSD: locore.S,v 1.2 2019/04/15 20:45:08 skrll Exp $ */
+/*     $NetBSD: locore.S,v 1.3 2019/04/16 20:33:36 skrll Exp $ */
 /*     $OpenBSD: locore.S,v 1.158 2008/07/28 19:08:46 miod Exp $       */
 
 /*
@@ -174,6 +174,14 @@
        stw     %arg1,R%boothowto(%r1)
        ldil    L%bootdev,%r1
        stw     %arg2,R%bootdev(%r1)
+
+       comb,<> %r0, %arg3, 1f
+        nop
+
+       ldil    L%end, %arg3
+       ldo     R%end(%arg3), %arg3
+
+1:
        ldil    L%esym,%r1
        stw     %arg3,R%esym(%r1)