Blame view

kernel/linux-imx6_3.14.28/arch/avr32/lib/io-writesw.S 644 Bytes
6b13f685e   김민수   BSP 최초 추가
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
  /*
   * 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