diff options
Diffstat (limited to 'arch/avr32/lib/io-readsl.S')
| -rw-r--r-- | arch/avr32/lib/io-readsl.S | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/arch/avr32/lib/io-readsl.S b/arch/avr32/lib/io-readsl.S new file mode 100644 index 000000000..b103511ed --- /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 |