patch-2.2.18 linux/arch/arm/lib/string.S

• Lines: 171
• Date: Thu Jan 1 01:00:00 1970
• Orig file: v2.2.17/arch/arm/lib/string.S
• Orig date: Fri Apr 21 12:45:45 2000

diff -u --new-file --recursive --exclude-from /usr/src/exclude v2.2.17/arch/arm/lib/string.S linux/arch/arm/lib/string.S
@@ -1,170 +0,0 @@
-/*
- * linux/arch/arm/lib/string.S
- *
- * Copyright (C) 1995-1998 Russell King
- *
- * This is commonly used to clear the frame buffer and the frame
- * backing buffer.  As such, it will be rarely called with r2 < 32.
- *
- * Optimisations by Matthew Wilcox
- */
-#include <linux/linkage.h>
-#include <asm/assembler.h>
-		.text
-# Prototype: char *strrchr(const char *s,char c);
-
-/*
- * Prototype: void memzero(void *d, size_t n)
- */
-ENTRY(memzero)
-		mov	r2, r1
-		mov	r1, #0
-/*
- * Prototype: void memsetl(unsigned long *d, unsigned long c, size_t n)
- */
-ENTRY(memsetl)
-		teq	r2, #0
-		RETINSTR(moveq,pc,lr)
-		stmfd	sp!, {lr}
-		mov	lr, r1
-		mov	r3, r1
-		mov	ip, r1
-
-		@ r2 = {32 ... 4}
-
-1:		subs	r2, r2, #32
-		stmgeia	r0!, {r1, r3, ip, lr}
-		stmgeia	r0!, {r1, r3, ip, lr}
-		bgt	1b
-		LOADREGS(eqfd, sp!, {pc})
-
-		@ r2 can be {-4 ... -28}
-
-		cmp	r2, #-16
-		stmgeia	r0!, {r1, r3, ip, lr}
-		addlts	r2, r2, #16
-		LOADREGS(eqfd, sp!, {pc})
-
-		@ r2 can be {-4 ... -12}
-
-		cmp	r2, #-8
-		stmgeia	r0!, {r1, r3}
-		strne	r1, [r0]
-		LOADREGS(fd, sp!, {pc})
-
-		.global	__page_memcpy
-__page_memcpy:	stmfd	sp!, {r4, r5, lr}
-1:		subs	r2, r2, #4*8
-		ldmgeia	r1!, {r3, r4, r5, ip}
-		stmgeia	r0!, {r3, r4, r5, ip}
-		ldmgeia	r1!, {r3, r4, r5, ip}
-		stmgeia	r0!, {r3, r4, r5, ip}
-		bgt	1b
-		LOADREGS(fd, sp!, {r4, r5, pc})
-
-		.global	memset
-memset:		mov	r3, r0
-		cmp	r2, #16
-		blt	6f
-		ands	ip, r3, #3
-		beq	1f
-		cmp	ip, #2
-		strltb	r1, [r3], #1			@ Align destination
-		strleb	r1, [r3], #1
-		strb	r1, [r3], #1
-		rsb	ip, ip, #4
-		sub	r2, r2, ip
-1:		orr	r1, r1, r1, lsl #8
-		orr	r1, r1, r1, lsl #16
-		cmp	r2, #256
-		blt	4f
-		stmfd	sp!, {r4, r5, lr}
-		mov	r4, r1
-		mov	r5, r1
-		mov	lr, r1
-		mov	ip, r2, lsr #6
-		sub	r2, r2, ip, lsl #6
-2:		stmia	r3!, {r1, r4, r5, lr}		@ 64 bytes at a time.
-		stmia	r3!, {r1, r4, r5, lr}
-		stmia	r3!, {r1, r4, r5, lr}
-		stmia	r3!, {r1, r4, r5, lr}
-		subs	ip, ip, #1
-		bne	2b
-		teq	r2, #0
-		LOADREGS(eqfd, sp!, {r4, r5, pc})	@ Now <64 bytes to go.
-		tst	r2, #32
-		stmneia	r3!, {r1, r4, r5, lr}
-		stmneia	r3!, {r1, r4, r5, lr}
-		tst	r2, #16
-		stmneia	r3!, {r1, r4, r5, lr}
-		ldmia	sp!, {r4, r5}
-3:		tst	r2, #8
-		stmneia	r3!, {r1, lr}
-		tst	r2, #4
-		strne	r1, [r3], #4
-		tst	r2, #2
-		strneb	r1, [r3], #1
-		strneb	r1, [r3], #1
-		tst	r2, #1
-		strneb	r1, [r3], #1
-		LOADREGS(fd, sp!, {pc})
-
-4:		movs	ip, r2, lsr #3
-		beq	3b
-		sub	r2, r2, ip, lsl #3
-		stmfd	sp!, {lr}
-		mov	lr, r1
-		subs	ip, ip, #4
-5:		stmgeia	r3!, {r1, lr}
-		stmgeia	r3!, {r1, lr}
-		stmgeia	r3!, {r1, lr}
-		stmgeia	r3!, {r1, lr}
-		subges	ip, ip, #4
-		bge	5b
-		tst	ip, #2
-		stmneia	r3!, {r1, lr}
-		stmneia	r3!, {r1, lr}
-		tst	ip, #1
-		stmneia	r3!, {r1, lr}
-		teq	r2, #0
-		LOADREGS(eqfd, sp!, {pc})
-		b	3b
-
-6:		subs	r2, r2, #1
-		strgeb	r1, [r3], #1
-		bgt	6b
-		RETINSTR(mov, pc, lr)
-
-ENTRY(strrchr)
-		stmfd	sp!, {lr}
-		mov	r3, #0
-1:		ldrb	r2, [r0], #1
-		teq	r2, r1
-		moveq	r3, r0
-		teq	r2, #0
-		bne	1b
-		mov	r0, r3
-		LOADREGS(fd, sp!, {pc})
-
-ENTRY(strchr)
-		stmfd	sp!,{lr}
-		mov	r3, #0
-1:		ldrb	r2, [r0], #1
-		teq	r2, r1
-		teqne	r2, #0
-		bne	1b
-		teq	r2, #0
-		moveq	r0, #0
-		subne	r0, r0, #1
-		LOADREGS(fd, sp!, {pc})
-
-ENTRY(memchr)
-		stmfd	sp!, {lr}
-1:		ldrb	r3, [r0], #1
-		teq	r3, r1
-		beq	2f
-		subs	r2, r2, #1
-		bpl	1b
-2:		movne	r0, #0
-		subeq	r0, r0, #1
-		LOADREGS(fd, sp!, {pc})