diff options
Diffstat (limited to 'carl9170fw/carlfw/src/memset.S')
| -rw-r--r-- | carl9170fw/carlfw/src/memset.S | 58 |
1 files changed, 0 insertions, 58 deletions
diff --git a/carl9170fw/carlfw/src/memset.S b/carl9170fw/carlfw/src/memset.S deleted file mode 100644 index d39c8a6..0000000 --- a/carl9170fw/carlfw/src/memset.S +++ /dev/null @@ -1,58 +0,0 @@ -/* $Id: memset.S,v 1.1 2000/04/14 16:49:01 mjd Exp $ - * - * "memset" implementation of SuperH - * - * Copyright (C) 1999 Niibe Yutaka - * - */ - -/* - * void *memset(void *s, int c, size_t n); - */ - - .globl _memset - .align 2 - _memset: - tst r6,r6 - bt/s 5f ! if n=0, do nothing - add r6,r4 - mov #12,r0 - cmp/gt r6,r0 - bt/s 4f ! if it's too small, set a byte at once - mov r4,r0 - and #3,r0 - cmp/eq #0,r0 - bt/s 2f ! It's aligned - sub r0,r6 -1: - dt r0 - bf/s 1b - mov.b r5,@-r4 -2: ! make VVVV - extu.b r5,r5 - swap.b r5,r0 ! V0 - or r0,r5 ! VV - swap.w r5,r0 ! VV00 - or r0,r5 ! VVVV - ! - mov r6,r0 - shlr2 r0 - shlr r0 ! r0 = r6 >> 3 -3: - dt r0 - mov.l r5,@-r4 ! set 8-byte at once - bf/s 3b - mov.l r5,@-r4 - ! - mov #7,r0 - and r0,r6 - tst r6,r6 - bt 5f - ! fill bytes -4: - dt r6 - bf/s 4b - mov.b r5,@-r4 -5: - rts - mov r4,r0 |