[rtems commit] mpc83xx: Copy nothing if necessary
Sebastian Huber
sebh at rtems.org
Thu Mar 14 09:51:47 UTC 2013
Module: rtems
Branch: master
Commit: b34401cce3e9e6af5f5a27651003cee9b23a73d2
Changeset: http://git.rtems.org/rtems/commit/?id=b34401cce3e9e6af5f5a27651003cee9b23a73d2
Author: Sebastian Huber <sebastian.huber at embedded-brains.de>
Date: Mon Mar 11 17:44:51 2013 +0100
mpc83xx: Copy nothing if necessary
---
c/src/lib/libbsp/powerpc/gen83xx/start/start.S | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/c/src/lib/libbsp/powerpc/gen83xx/start/start.S b/c/src/lib/libbsp/powerpc/gen83xx/start/start.S
index 2c67bf8..770256d 100644
--- a/c/src/lib/libbsp/powerpc/gen83xx/start/start.S
+++ b/c/src/lib/libbsp/powerpc/gen83xx/start/start.S
@@ -457,6 +457,9 @@ twiddle:
b twiddle
copy_image:
+ cmpwi r28, 0
+ beqlr
+
mr r27, r28
srwi r28, r28, 2
mtctr r28
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