This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / arch / avr32 / lib / io-readsl.S

diff --git a/arch/avr32/lib/io-readsl.S b/arch/avr32/lib/io-readsl.S
new file mode 100644 (file)
index 0000000..b103511
--- /dev/null
+++ b/arch/avr32/lib/io-readsl.S
@@ -0,0 +1,24 @@
+/*
+ * Copyright (C) 2004-2006 Atmel Corporation
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+       .global __raw_readsl
+       .type   __raw_readsl,@function
+__raw_readsl:
+       cp.w    r10, 0
+       reteq   r12
+
+       /*
+        * If r11 isn't properly aligned, we might get an exception on
+        * some implementations. But there's not much we can do about it.
+        */
+1:     ld.w    r8, r12[0]
+       sub     r10, 1
+       st.w    r11++, r8
+       brne    1b
+
+       retal   r12