changeset 63d8224543f7 in /z/repo/m5threads
details: http://repo.gem5.org/m5threads?cmd=changeset;node=63d8224543f7
description:
Switch to ja instruction from jne in x86 spin_lock
diffstat:
spinlock_x86.h | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)
diffs (16 lines):
diff -r 3f8d39a1afa1 -r 63d8224543f7 spinlock_x86.h
--- a/spinlock_x86.h Mon Feb 16 13:29:55 2009 -0800
+++ b/spinlock_x86.h Fri Aug 02 14:12:29 2013 -0600
@@ -29,10 +29,10 @@
(
"\n1:\t" \
"cmpb $0,%1\n\t" \
- "jne 1b\n\t" \
+ "ja 1b\n\t" \
"xchgb %b0, %1\n\t" \
"cmpb $0,%0\n" \
- "jne 1b\n\t"
+ "ja 1b\n\t"
:"=q"(oldval), "=m"(*lock)
: "0"(1)
: "memory");
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