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/arch/frv/lib/outsl_sw.S

https://bitbucket.org/evzijst/gittest
Assembly | 45 lines | 39 code | 6 blank | 0 comment | 0 complexity | 14008b48e3f126b163a4e0b95df2010e MD5 | raw file
 1/* outsl_ns.S: output array of 4b words to device with byte swapping
 2 *
 3 * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
 4 * Written by David Howells (dhowells@redhat.com)
 5 *
 6 * This program is free software; you can redistribute it and/or
 7 * modify it under the terms of the GNU General Public License
 8 * as published by the Free Software Foundation; either version
 9 * 2 of the License, or (at your option) any later version.
10 */
11
12
13        .text
14        .p2align	4
15
16###############################################################################
17#
18# void __outsl_sw(unsigned int port, const void *buf, int n)
19#
20###############################################################################
21        .globl		__outsl_sw
22        .type		__outsl_sw,@function
23__outsl_sw:
24	subi.p		gr9,#1,gr9
25	setlos		#1,gr4
260:
27	ldubu		@(gr9,gr4),gr5
28	ldubu		@(gr9,gr4),gr6
29	slli		gr6,#8,gr6
30	ldubu.p		@(gr9,gr4),gr7
31	or		gr5,gr6,gr5
32	ldubu.p		@(gr9,gr4),gr6
33	slli		gr7,#16,gr7
34	slli.p		gr6,#24,gr6
35	or		gr5,gr7,gr5
36	subicc.p	gr10,#1,gr10,icc0
37	or		gr5,gr6,gr5
38
39	sti.p		gr5,@(gr8,#0)
40	bhi		icc0,#2,0b
41
42	membar
43	bralr
44
45	.size		__outsl_sw, .-__outsl_sw