diff options
Diffstat (limited to 'arch/arm/lib/memcpy.S')
| -rw-r--r-- | arch/arm/lib/memcpy.S | 319 |
1 files changed, 0 insertions, 319 deletions
diff --git a/arch/arm/lib/memcpy.S b/arch/arm/lib/memcpy.S deleted file mode 100644 index f26e6cb1c..000000000 --- a/arch/arm/lib/memcpy.S +++ /dev/null @@ -1,319 +0,0 @@ -/* - * linux/arch/arm/lib/segment.S - * - * Copyright (C) 1995, 1996 Russell King - * Except memcpy/memmove routine. - */ - -#include <asm/assembler.h> -#include <linux/linkage.h> - -#ifndef ENTRY -#define ENTRY(x...) \ - .globl _##x; \ -_##x: -#endif - - .text -#define ENTER \ - mov ip,sp ;\ - stmfd sp!,{r4-r9,fp,ip,lr,pc} ;\ - sub fp,ip,#4 - -#define EXIT \ - LOADREGS(ea, fp, {r4 - r9, fp, sp, pc}) - -#define EXITEQ \ - LOADREGS(eqea, fp, {r4 - r9, fp, sp, pc}) - -# Prototype: void memcpy(void *to,const void *from,unsigned long n); -# ARM3: cant use memcopy here!!! - -ENTRY(memcpy) -ENTRY(memmove) - ENTER - cmp r1, r0 - bcc 19f - subs r2, r2, #4 - blt 6f - ands ip, r0, #3 - bne 7f - ands ip, r1, #3 - bne 8f - -1: subs r2, r2, #8 - blt 5f - subs r2, r2, #0x14 - blt 3f -2: ldmia r1!,{r3 - r9, ip} - stmia r0!,{r3 - r9, ip} - subs r2, r2, #32 - bge 2b - cmn r2, #16 - ldmgeia r1!, {r3 - r6} - stmgeia r0!, {r3 - r6} - subge r2, r2, #0x10 -3: adds r2, r2, #0x14 -4: ldmgeia r1!, {r3 - r5} - stmgeia r0!, {r3 - r5} - subges r2, r2, #12 - bge 4b -5: adds r2, r2, #8 - blt 6f - subs r2, r2, #4 - ldrlt r3, [r1], #4 - strlt r3, [r0], #4 - ldmgeia r1!, {r3, r4} - stmgeia r0!, {r3, r4} - subge r2, r2, #4 - -6: adds r2, r2, #4 - EXITEQ - cmp r2, #2 - ldrb r3, [r1], #1 - strb r3, [r0], #1 - ldrgeb r3, [r1], #1 - strgeb r3, [r0], #1 - ldrgtb r3, [r1], #1 - strgtb r3, [r0], #1 - EXIT - -7: rsb ip, ip, #4 - cmp ip, #2 - ldrb r3, [r1], #1 - strb r3, [r0], #1 - ldrgeb r3, [r1], #1 - strgeb r3, [r0], #1 - ldrgtb r3, [r1], #1 - strgtb r3, [r0], #1 - subs r2, r2, ip - blt 6b - ands ip, r1, #3 - beq 1b - -8: bic r1, r1, #3 - ldr r7, [r1], #4 - cmp ip, #2 - bgt 15f - beq 11f - cmp r2, #12 - blt 10f - sub r2, r2, #12 -9: mov r3, r7, lsr #8 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, lsl #24 - mov r4, r4, lsr #8 - orr r4, r4, r5, lsl #24 - mov r5, r5, lsr #8 - orr r5, r5, r6, lsl #24 - mov r6, r6, lsr #8 - orr r6, r6, r7, lsl #24 - stmia r0!, {r3 - r6} - subs r2, r2, #16 - bge 9b - adds r2, r2, #12 - blt 100f -10: mov r3, r7, lsr #8 - ldr r7, [r1], #4 - orr r3, r3, r7, lsl #24 - str r3, [r0], #4 - subs r2, r2, #4 - bge 10b -100: sub r1, r1, #3 - b 6b - -11: cmp r2, #12 - blt 13f /* */ - sub r2, r2, #12 -12: mov r3, r7, lsr #16 - ldmia r1!, {r4 - r7} - orr r3, r3, r4, lsl #16 - mov r4, r4, lsr #16 - orr r4, r4, r5, lsl #16 - mov r5, r5, lsr #16 - orr r5, r5, r6, lsl #16 - mov r6, r6, lsr #16 - orr r6, r6, r7,LSL#16 - stmia r0!, {r3 - r6} - subs r2, r2, #16 - bge 12b - adds r2, r2, #12 - blt 14f -13: mov r3, r7, lsr #16 - ldr r7, [r1], #4 - orr r3, r3, r7, lsl #16 - str r3, [r0], #4 - subs r2, r2, #4 - bge 13b -14: sub r1, r1, #2 - b 6b - -15: cmp r2, #12 - blt 17f - sub r2, r2, #12 -16: mov r3, r7, lsr #24 - ldmia r1!,{r4 - r7} - orr r3, r3, r4, lsl #8 - mov r4, r4, lsr #24 - orr r4, r4, r5, lsl #8 - mov r5, r5, lsr #24 - orr r5, r5, r6, lsl #8 - mov r6, r6, lsr #24 - orr r6, r6, r7, lsl #8 - stmia r0!, {r3 - r6} - subs r2, r2, #16 - bge 16b - adds r2, r2, #12 - blt 18f -17: mov r3, r7, lsr #24 - ldr r7, [r1], #4 - orr r3, r3, r7, lsl#8 - str r3, [r0], #4 - subs r2, r2, #4 - bge 17b -18: sub r1, r1, #1 - b 6b - - -19: add r1, r1, r2 - add r0, r0, r2 - subs r2, r2, #4 - blt 24f - ands ip, r0, #3 - bne 25f - ands ip, r1, #3 - bne 26f - -20: subs r2, r2, #8 - blt 23f - subs r2, r2, #0x14 - blt 22f -21: ldmdb r1!, {r3 - r9, ip} - stmdb r0!, {r3 - r9, ip} - subs r2, r2, #32 - bge 21b -22: cmn r2, #16 - ldmgedb r1!, {r3 - r6} - stmgedb r0!, {r3 - r6} - subge r2, r2, #16 - adds r2, r2, #20 - ldmgedb r1!, {r3 - r5} - stmgedb r0!, {r3 - r5} - subge r2, r2, #12 -23: adds r2, r2, #8 - blt 24f - subs r2, r2, #4 - ldrlt r3, [r1, #-4]! - strlt r3, [r0, #-4]! - ldmgedb r1!, {r3, r4} - stmgedb r0!, {r3, r4} - subge r2, r2, #4 - -24: adds r2, r2, #4 - EXITEQ - cmp r2, #2 - ldrb r3, [r1, #-1]! - strb r3, [r0, #-1]! - ldrgeb r3, [r1, #-1]! - strgeb r3, [r0, #-1]! - ldrgtb r3, [r1, #-1]! - strgtb r3, [r0, #-1]! - EXIT - -25: cmp ip, #2 - ldrb r3, [r1, #-1]! - strb r3, [r0, #-1]! - ldrgeb r3, [r1, #-1]! - strgeb r3, [r0, #-1]! - ldrgtb r3, [r1, #-1]! - strgtb r3, [r0, #-1]! - subs r2, r2, ip - blt 24b - ands ip, r1, #3 - beq 20b - -26: bic r1, r1, #3 - ldr r3, [r1], #0 - cmp ip, #2 - blt 34f - beq 30f - cmp r2, #12 - blt 28f - sub r2, r2, #12 -27: mov r7, r3, lsl #8 - ldmdb r1!, {r3, r4, r5, r6} - orr r7, r7, r6, lsr #24 - mov r6, r6, lsl #8 - orr r6, r6, r5, lsr #24 - mov r5, r5, lsl #8 - orr r5, r5, r4, lsr #24 - mov r4, r4, lsl #8 - orr r4, r4, r3, lsr #24 - stmdb r0!, {r4, r5, r6, r7} - subs r2, r2, #16 - bge 27b - adds r2, r2, #12 - blt 29f -28: mov ip, r3, lsl #8 - ldr r3, [r1, #-4]! - orr ip, ip, r3, lsr #24 - str ip, [r0, #-4]! - subs r2, r2, #4 - bge 28b -29: add r1, r1, #3 - b 24b - -30: cmp r2, #12 - blt 32f - sub r2, r2, #12 -31: mov r7, r3, lsl #16 - ldmdb r1!, {r3, r4, r5, r6} - orr r7, r7, r6, lsr #16 - mov r6, r6, lsl #16 - orr r6, r6, r5, lsr #16 - mov r5, r5, lsl #16 - orr r5, r5, r4, lsr #16 - mov r4, r4, lsl #16 - orr r4, r4, r3, lsr #16 - stmdb r0!, {r4, r5, r6, r7} - subs r2, r2, #16 - bge 31b - adds r2, r2, #12 - blt 33f -32: mov ip, r3, lsl #16 - ldr r3, [r1, #-4]! - orr ip, ip, r3, lsr #16 - str ip, [r0, #-4]! - subs r2, r2, #4 - bge 32b -33: add r1, r1, #2 - b 24b - -34: cmp r2, #12 - blt 36f - sub r2, r2, #12 -35: mov r7, r3, lsl #24 - ldmdb r1!, {r3, r4, r5, r6} - orr r7, r7, r6, lsr #8 - mov r6, r6, lsl #24 - orr r6, r6, r5, lsr #8 - mov r5, r5, lsl #24 - orr r5, r5, r4, lsr #8 - mov r4, r4, lsl #24 - orr r4, r4, r3, lsr #8 - stmdb r0!, {r4, r5, r6, r7} - subs r2, r2, #16 - bge 35b - adds r2, r2, #12 - blt 37f -36: mov ip, r3, lsl #24 - ldr r3, [r1, #-4]! - orr ip, ip, r3, lsr #8 - str ip, [r0, #-4]! - subs r2, r2, #4 - bge 36b -37: add r1, r1, #1 - b 24b - - .align - |