Module Name: src
Committed By: martin
Date: Thu Feb 20 16:33:23 UTC 2014
Modified Files:
src/common/lib/libc/arch/m68k/atomic: atomic_cas.S
Log Message:
Simplify the variants returning a bool
To generate a diff of this commit:
cvs rdiff -u -r1.8 -r1.9 src/common/lib/libc/arch/m68k/atomic/atomic_cas.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/common/lib/libc/arch/m68k/atomic/atomic_cas.S
diff -u src/common/lib/libc/arch/m68k/atomic/atomic_cas.S:1.8 src/common/lib/libc/arch/m68k/atomic/atomic_cas.S:1.9
--- src/common/lib/libc/arch/m68k/atomic/atomic_cas.S:1.8 Tue Feb 18 16:19:28 2014
+++ src/common/lib/libc/arch/m68k/atomic/atomic_cas.S Thu Feb 20 16:33:23 2014
@@ -1,4 +1,4 @@
-/* $NetBSD: atomic_cas.S,v 1.8 2014/02/18 16:19:28 martin Exp $ */
+/* $NetBSD: atomic_cas.S,v 1.9 2014/02/20 16:33:23 martin Exp $ */
/*-
* Copyright (c) 2007, 2008 The NetBSD Foundation, Inc.
@@ -68,11 +68,11 @@ ENTRY(__sync_bool_compare_and_swap_4)
movl 12(%sp), %d1
casl %d3, %d1, (%a0)
/* %d3 now contains the old value */
- clrl %d0 /* assume it did not work */
- cmpl %d3, %d2
- bne 1f
- movl #1, %d0 /* return success */
-1: rts
+ beq 1f
+ clrl %d0 /* return false */
+ rts
+1: movl #1, %d0 /* return success */
+ rts
END(__sync_bool_compare_and_swap_4)
ENTRY(_atomic_cas_16)
@@ -94,11 +94,11 @@ ENTRY(__sync_bool_compare_and_swap_2)
movw 10(%sp), %d1
casw %d3, %d1, (%a0)
/* %d3 now contains the old value */
- clrl %d0 /* assume it did not work */
- cmpw %d3, %d2
- bne 1f
- movl #1, %d0 /* return success */
-1: rts
+ beq 1f
+ clrl %d0 /* return failure */
+ rts
+1: movl #1, %d0 /* return success */
+ rts
END(__sync_bool_compare_and_swap_2)
ENTRY(_atomic_cas_8)
@@ -121,10 +121,10 @@ ENTRY(__sync_bool_compare_and_swap_1)
movb 9(%sp), %d1
casb %d3, %d1, (%a0)
/* %d3 now contains the old value */
- clrl %d0 /* assume it did not work */
- cmpb %d3, %d2
- bne 1f
- movl #1, %d0 /* return success */
-1: rts
+ beq 1f
+ clrl %d0 /* return failure */
+ rts
+1: movl #1, %d0 /* return success */
+ rts
END(__sync_bool_compare_and_swap_1)
