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- /*
- * Copyright (C) 2004-2007 Atmel Corporation
- *
- * This file is subject to the terms and conditions of the GNU Lesser General
- * Public License. See the file "COPYING.LIB" in the main directory of this
- * archive for more details.
- */
- #include <features.h>
- #define s1 r12
- #define s2 r11
- #define len r10
- .text
- .global memcmp
- .type memcmp, @function
- .align 1
- memcmp:
- sub len, 4
- brlt .Lless_than_4
- 1: ld.w r8, s1++
- ld.w r9, s2++
- cp.w r8, r9
- brne .Lfound_word
- sub len, 4
- brge 1b
- .Lless_than_4:
- sub len, -4
- reteq 0
- 1: ld.ub r8, s1++
- ld.ub r9, s2++
- sub r8, r9
- retne r8
- sub len, 1
- brgt 1b
- retal 0
- .Lfound_word:
- mov len, 4
- 2: bfextu r11, r9, 24, 8
- bfextu r12, r8, 24, 8
- sub r12, r11
- retne r12
- lsl r8, 8
- lsl r9, 8
- sub len, 1
- brne 2b
- retal r12
- .size memcmp, . - memcmp
- libc_hidden_def(memcmp)
- #ifdef __UCLIBC_SUSV3_LEGACY__
- strong_alias(memcmp,bcmp)
- #endif
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