tnew - plan9port - [fork] Plan 9 from user space
HTML git clone git://src.adamsgaard.dk/plan9port
DIR Log
DIR Files
DIR Refs
DIR README
DIR LICENSE
---
DIR commit 9f7a3e020e851a217790be84c177f0e8a4347d9b
DIR parent ad9e684811638b69d3800b011ee5fafb448992a3
HTML 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(-)
---
DIR diff --git a/src/libthread/Linux-power-asm.s b/src/libthread/Linux-power-asm.s
t@@ -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
+