1/* SPDX-License-Identifier: GPL-2.0-only */
 2/*
 3 *  linux/arch/arm/lib/io-writesl.S
 4 *
 5 *  Copyright (C) 1995-2000 Russell King
 
 
 
 
 6 */
 7#include <linux/linkage.h>
 8#include <asm/assembler.h>
 9
10ENTRY(__raw_writesl)
11		teq	r2, #0		@ do we have to check for the zero len?
12		reteq	lr
13		ands	ip, r1, #3
14		bne	3f
15
16		subs	r2, r2, #4
17		bmi	2f
18		stmfd	sp!, {r4, lr}
191:		ldmia	r1!, {r3, r4, ip, lr}
20		subs	r2, r2, #4
21		str	r3, [r0, #0]
22		str	r4, [r0, #0]
23		str	ip, [r0, #0]
24		str	lr, [r0, #0]
25		bpl	1b
26		ldmfd	sp!, {r4, lr}
272:		movs	r2, r2, lsl #31
28		ldmiacs	r1!, {r3, ip}
29		strcs	r3, [r0, #0]
30		ldrne	r3, [r1, #0]
31		strcs	ip, [r0, #0]
32		strne	r3, [r0, #0]
33		ret	lr
34
353:		bic	r1, r1, #3
36		ldr	r3, [r1], #4
37		cmp	ip, #2
38		blt	5f
39		bgt	6f
40
414:		mov	ip, r3, lspull #16
42		ldr	r3, [r1], #4
43		subs	r2, r2, #1
44		orr	ip, ip, r3, lspush #16
45		str	ip, [r0]
46		bne	4b
47		ret	lr
48
495:		mov	ip, r3, lspull #8
50		ldr	r3, [r1], #4
51		subs	r2, r2, #1
52		orr	ip, ip, r3, lspush #24
53		str	ip, [r0]
54		bne	5b
55		ret	lr
56
576:		mov	ip, r3, lspull #24
58		ldr	r3, [r1], #4
59		subs	r2, r2, #1
60		orr	ip, ip, r3, lspush #8
61		str	ip, [r0]
62		bne	6b
63		ret	lr
64ENDPROC(__raw_writesl)

 
 1/*
 2 *  linux/arch/arm/lib/io-writesl.S
 3 *
 4 *  Copyright (C) 1995-2000 Russell King
 5 *
 6 * This program is free software; you can redistribute it and/or modify
 7 * it under the terms of the GNU General Public License version 2 as
 8 * published by the Free Software Foundation.
 9 */
10#include <linux/linkage.h>
11#include <asm/assembler.h>
12
13ENTRY(__raw_writesl)
14		teq	r2, #0		@ do we have to check for the zero len?
15		moveq	pc, lr
16		ands	ip, r1, #3
17		bne	3f
18
19		subs	r2, r2, #4
20		bmi	2f
21		stmfd	sp!, {r4, lr}
221:		ldmia	r1!, {r3, r4, ip, lr}
23		subs	r2, r2, #4
24		str	r3, [r0, #0]
25		str	r4, [r0, #0]
26		str	ip, [r0, #0]
27		str	lr, [r0, #0]
28		bpl	1b
29		ldmfd	sp!, {r4, lr}
302:		movs	r2, r2, lsl #31
31		ldmcsia	r1!, {r3, ip}
32		strcs	r3, [r0, #0]
33		ldrne	r3, [r1, #0]
34		strcs	ip, [r0, #0]
35		strne	r3, [r0, #0]
36		mov	pc, lr
37
383:		bic	r1, r1, #3
39		ldr	r3, [r1], #4
40		cmp	ip, #2
41		blt	5f
42		bgt	6f
43
444:		mov	ip, r3, pull #16
45		ldr	r3, [r1], #4
46		subs	r2, r2, #1
47		orr	ip, ip, r3, push #16
48		str	ip, [r0]
49		bne	4b
50		mov	pc, lr
51
525:		mov	ip, r3, pull #8
53		ldr	r3, [r1], #4
54		subs	r2, r2, #1
55		orr	ip, ip, r3, push #24
56		str	ip, [r0]
57		bne	5b
58		mov	pc, lr
59
606:		mov	ip, r3, pull #24
61		ldr	r3, [r1], #4
62		subs	r2, r2, #1
63		orr	ip, ip, r3, push #8
64		str	ip, [r0]
65		bne	6b
66		mov	pc, lr
67ENDPROC(__raw_writesl)