diff options
Diffstat (limited to 'arch/v850/lib/memset.c')
-rw-r--r-- | arch/v850/lib/memset.c | 68 |
1 files changed, 0 insertions, 68 deletions
diff --git a/arch/v850/lib/memset.c b/arch/v850/lib/memset.c deleted file mode 100644 index d1b2ad821b15..000000000000 --- a/arch/v850/lib/memset.c +++ /dev/null | |||
@@ -1,68 +0,0 @@ | |||
1 | /* | ||
2 | * arch/v850/lib/memset.c -- Memory initialization | ||
3 | * | ||
4 | * Copyright (C) 2001,02,04 NEC Corporation | ||
5 | * Copyright (C) 2001,02,04 Miles Bader <miles@gnu.org> | ||
6 | * | ||
7 | * This file is subject to the terms and conditions of the GNU General | ||
8 | * Public License. See the file COPYING in the main directory of this | ||
9 | * archive for more details. | ||
10 | * | ||
11 | * Written by Miles Bader <miles@gnu.org> | ||
12 | */ | ||
13 | |||
14 | #include <linux/types.h> | ||
15 | |||
16 | void *memset (void *dst, int val, __kernel_size_t count) | ||
17 | { | ||
18 | if (count) { | ||
19 | register unsigned loop; | ||
20 | register void *ptr asm ("ep") = dst; | ||
21 | |||
22 | /* replicate VAL into a long. */ | ||
23 | val &= 0xff; | ||
24 | val |= val << 8; | ||
25 | val |= val << 16; | ||
26 | |||
27 | /* copy initial unaligned bytes. */ | ||
28 | if ((long)ptr & 1) { | ||
29 | *(char *)ptr = val; | ||
30 | ptr = (void *)((char *)ptr + 1); | ||
31 | count--; | ||
32 | } | ||
33 | if (count > 2 && ((long)ptr & 2)) { | ||
34 | *(short *)ptr = val; | ||
35 | ptr = (void *)((short *)ptr + 1); | ||
36 | count -= 2; | ||
37 | } | ||
38 | |||
39 | /* 32-byte copying loop. */ | ||
40 | for (loop = count / 32; loop; loop--) { | ||
41 | asm ("sst.w %0, 0[ep]; sst.w %0, 4[ep];" | ||
42 | "sst.w %0, 8[ep]; sst.w %0, 12[ep];" | ||
43 | "sst.w %0, 16[ep]; sst.w %0, 20[ep];" | ||
44 | "sst.w %0, 24[ep]; sst.w %0, 28[ep]" | ||
45 | :: "r" (val) : "memory"); | ||
46 | ptr += 32; | ||
47 | } | ||
48 | count %= 32; | ||
49 | |||
50 | /* long copying loop. */ | ||
51 | for (loop = count / 4; loop; loop--) { | ||
52 | *(long *)ptr = val; | ||
53 | ptr = (void *)((long *)ptr + 1); | ||
54 | } | ||
55 | count %= 4; | ||
56 | |||
57 | /* finish up with any trailing bytes. */ | ||
58 | if (count & 2) { | ||
59 | *(short *)ptr = val; | ||
60 | ptr = (void *)((short *)ptr + 1); | ||
61 | } | ||
62 | if (count & 1) { | ||
63 | *(char *)ptr = val; | ||
64 | } | ||
65 | } | ||
66 | |||
67 | return dst; | ||
68 | } | ||