patch-2.3.23 linux/arch/arm/lib/memcpy.S

• Lines: 320
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.3.22/linux/arch/arm/lib/memcpy.S
• Orig date: Sun Apr 12 11:42:15 1998

diff -u --recursive --new-file v2.3.22/linux/arch/arm/lib/memcpy.S linux/arch/arm/lib/memcpy.S
@@ -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
-