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- /*
- * 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.
- */
- .text
- .Lnot_word_aligned:
- 1: ld.ub r8, r12[0]
- sub r10, 1
- st.b r11++, r8
- reteq r12
- tst r11, r9
- brne 1b
- /* fall through */
- .global __raw_readsb
- .type __raw_readsb,@function
- __raw_readsb:
- cp.w r10, 0
- mov r9, 3
- reteq r12
- tst r11, r9
- brne .Lnot_word_aligned
- sub r10, 4
- brlt 2f
- 1: ldins.b r8:t, r12[0]
- ldins.b r8:u, r12[0]
- ldins.b r8:l, r12[0]
- ldins.b r8:b, r12[0]
- st.w r11++, r8
- sub r10, 4
- brge 1b
- 2: sub r10, -4
- reteq r12
- 3: ld.ub r8, r12[0]
- sub r10, 1
- st.b r11++, r8
- brne 3b
- retal r12
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