added atomic_read

git-svn-id: file:///srv/svn/repos/haiku/trunk/current@4359 a95241bf-73f2-0310-859d-f6bbb57e9c96
2003-08-21 17:55:56 +00:00
parent e9ac8260a6
commit fb16941a02
1 changed files with 9 additions and 0 deletions
@@ -61,3 +61,12 @@ lost5:	lwarx	%r6, 0, %r3
 out5:	mr		%r3, %r6
 		blr
 /* int atomic_read(int *value) 
 *                  r3
 */
 FUNCTION(atomic_read):
 lost6:	lwarx	%r5, 0, %r3
 		stwcx.	%r5, 0, %r3
 		bne-	lost6
 		mr		%r3, %r5
 		blr