blob: b4ebaacccf68f3faf84a84ce33273696b304a663 [file] [log] [blame]
Haavard Skinnemoend68041c2006-10-24 10:12:44 +02001/*
2 * Copyright (C) 2004-2006 Atmel Corporation
3 *
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
7 */
8
9 .text
10.Lnot_word_aligned:
111: ld.ub r8, r11++
12 sub r10, 1
13 st.b r12[0], r8
14 reteq r12
15 tst r11, r9
16 brne 1b
17
18 /* fall through */
19
20 .global __raw_writesb
21 .type __raw_writesb,@function
22__raw_writesb:
23 cp.w r10, 0
24 mov r9, 3
25 reteq r12
26
27 tst r11, r9
28 brne .Lnot_word_aligned
29
30 sub r10, 4
31 brlt 2f
32
331: ld.w r8, r11++
34 bfextu r9, r8, 24, 8
35 st.b r12[0], r9
36 bfextu r9, r8, 16, 8
37 st.b r12[0], r9
38 bfextu r9, r8, 8, 8
39 st.b r12[0], r9
40 st.b r12[0], r8
41 sub r10, 4
42 brge 1b
43
442: sub r10, -4
45 reteq r12
46
473: ld.ub r8, r11++
48 sub r10, 1
49 st.b r12[0], r8
50 brne 3b
51
52 retal r12