[mirror_ubuntu-artful-kernel.git] / arch / avr32 / lib / io-writesw.S

/*
 * Copyright (C) 2004-2006 Atmel Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

.Lnot_word_aligned:
	ld.uh	r8, r11++
	sub	r10, 1
	st.h	r12[0], r8

	.global	__raw_writesw
	.type	__raw_writesw,@function
__raw_writesw:
	cp.w	r10, 0
	mov	r9, 3
	reteq	r12
	tst	r11, r9
	brne	.Lnot_word_aligned

	sub	r10, 2
	brlt	2f

1:	ld.w	r8, r11++
	bfextu	r9, r8, 16, 16
	st.h	r12[0], r9
	st.h	r12[0], r8
	sub	r10, 2
	brge	1b

2:	sub	r10, -2
	reteq	r12

	ld.uh	r8, r11++
	st.h	r12[0], r8
	retal	r12
Commit	Line	Data
5f97f7f9 HS	1	/*
	2	* Copyright (C) 2004-2006 Atmel Corporation
	3	*
	4	* This program is free software; you can redistribute it and/or modify
	5	* it under the terms of the GNU General Public License version 2 as
	6	* published by the Free Software Foundation.
	7	*/
	8
	9	.Lnot_word_aligned:
	10	ld.uh r8, r11++
	11	sub r10, 1
	12	st.h r12[0], r8
	13
	14	.global __raw_writesw
	15	.type __raw_writesw,@function
	16	__raw_writesw:
	17	cp.w r10, 0
	18	mov r9, 3
	19	reteq r12
	20	tst r11, r9
	21	brne .Lnot_word_aligned
	22
	23	sub r10, 2
	24	brlt 2f
	25
	26	1: ld.w r8, r11++
	27	bfextu r9, r8, 16, 16
	28	st.h r12[0], r9
	29	st.h r12[0], r8
	30	sub r10, 2
	31	brge 1b
	32
	33	2: sub r10, -2
	34	reteq r12
	35
	36	ld.uh r8, r11++
	37	st.h r12[0], r8
	38	retal r12