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

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

diff --git a/arch/avr32/lib/io-writesw.S b/arch/avr32/lib/io-writesw.S
new file mode 100644 (file)
index 0000000..8c4a53f
--- /dev/null
+++ b/arch/avr32/lib/io-writesw.S
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+
+.Lnot_word_aligned:
+       ld.uh   r8, r11++
+       sub     r10, 1
+       st.h    r12[0], r8
+
+       .global __raw_writesw
+       .type   __raw_writesw,@function
+__raw_writesw:
+       cp.w    r10, 0
+       mov     r9, 3
+       reteq   r12
+       tst     r11, r9
+       brne    .Lnot_word_aligned
+
+       sub     r10, 2
+       brlt    2f
+
+1:     ld.w    r8, r11++
+       bfextu  r9, r8, 16, 16
+       st.h    r12[0], r9
+       st.h    r12[0], r8
+       sub     r10, 2
+       brge    1b
+
+2:     sub     r10, -2
+       reteq   r12
+
+       ld.uh   r8, r11++
+       st.h    r12[0], r8
+       retal   r12