plan9port

commit 9f7a3e020e851a217790be84c177f0e8a4347d9b
parent ad9e684811638b69d3800b011ee5fafb448992a3
Author: rsc <devnull@localhost>
Date:   Mon, 22 Aug 2005 16:56:28 +0000

new

Diffstat:
A
src/libthread/Linux-power-asm.s
 | 
16
++++++++++++++++

1 file changed, 16 insertions(+), 0 deletions(-)
diff --git a/src/libthread/Linux-power-asm.s b/src/libthread/Linux-power-asm.s
@@ -0,0 +1,16 @@
+	.globl	_tas
+_tas:
+	li	%r0, 0
+	mr	%r4, %r3
+	lis	%r5, 0xcafe
+	ori	%r5, %r5, 0xbabe
+1:
+	lwarx	%r3, %r0, %r4
+	cmpwi	%r3, 0
+	bne	2f
+	stwcx.	%r5, %r0, %r4
+	bne-	1b
+2:
+	sync
+	blr
+