diff options
Diffstat (limited to 'arch/m32r/lib/memcpy.S')
-rw-r--r-- | arch/m32r/lib/memcpy.S | 93 |
1 files changed, 0 insertions, 93 deletions
diff --git a/arch/m32r/lib/memcpy.S b/arch/m32r/lib/memcpy.S deleted file mode 100644 index 249da3e3358d..000000000000 --- a/arch/m32r/lib/memcpy.S +++ /dev/null @@ -1,93 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -/* - * linux/arch/m32r/lib/memcpy.S - * - * Copyright (C) 2001 Hiroyuki Kondo, and Hirokazu Takata - * Copyright (C) 2004 Hirokazu Takata - * - * void *memcopy(void *dst, const void *src, int n); - * - * dst: r0 - * src: r1 - * n : r2 - */ - - .text -#include <linux/linkage.h> -#include <asm/assembler.h> - -#ifdef CONFIG_ISA_DUAL_ISSUE - - .text -ENTRY(memcpy) -memcopy: - mv r4, r0 || mv r7, r0 - or r7, r1 || cmpz r2 - jc r14 || cmpeq r0, r1 ; return if r2=0 - jc r14 ; return if r0=r1 - - and3 r7, r7, #3 - bnez r7, byte_copy - srl3 r3, r2, #2 - and3 r2, r2, #3 - beqz r3, byte_copy - addi r4, #-4 -word_copy: - ld r7, @r1+ || addi r3, #-1 - st r7, @+r4 || cmpz r2 - bnez r3, word_copy - addi r4, #4 || jc r14 ; return if r2=0 -#if defined(CONFIG_ISA_M32R2) -byte_copy: - ldb r7, @r1 || addi r1, #1 - addi r2, #-1 || stb r7, @r4+ - bnez r2, byte_copy -#elif defined(CONFIG_ISA_M32R) -byte_copy: - ldb r7, @r1 || addi r1, #1 - addi r2, #-1 || stb r7, @r4 - addi r4, #1 - bnez r2, byte_copy -#else -#error unknown isa configuration -#endif -end_memcopy: - jmp r14 - -#else /* not CONFIG_ISA_DUAL_ISSUE */ - - .text -ENTRY(memcpy) -memcopy: - mv r4, r0 - mv r7, r0 - or r7, r1 - beq r0, r1, end_memcopy - beqz r2, end_memcopy - - and3 r7, r7, #3 - bnez r7, byte_copy - srl3 r3, r2, #2 - and3 r2, r2, #3 - beqz r3, byte_copy - addi r4, #-4 -word_copy: - ld r7, @r1+ - addi r3, #-1 - st r7, @+r4 - bnez r3, word_copy - beqz r2, end_memcopy - addi r4, #4 -byte_copy: - ldb r7, @r1 - addi r1, #1 - addi r2, #-1 - stb r7, @r4 - addi r4, #1 - bnez r2, byte_copy -end_memcopy: - jmp r14 - -#endif /* not CONFIG_ISA_DUAL_ISSUE */ - - .end |