1/* insl_sw.S: input array of 4b words from device port 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 __insl_sw(unsigned int port, void *buf, int n)
19#
20###############################################################################
21        .globl		__insl_sw
22        .type		__insl_sw,@function
23__insl_sw:
24	subi.p		gr9,#1,gr9
25	setlos		#1,gr4
260:
27	ldi.p		@(gr8,#0),gr5		; get 0xAABBCCDD
28	subicc		gr10,#1,gr10,icc0
29
30	stbu.p		gr5,@(gr9,gr4)		; write 0xDD
31	srli		gr5,#8,gr5
32	stbu.p		gr5,@(gr9,gr4)		; write 0xCC
33	srli		gr5,#8,gr5
34	stbu.p		gr5,@(gr9,gr4)		; write 0xBB
35	srli		gr5,#8,gr5
36	stbu.p		gr5,@(gr9,gr4)		; write 0xAA
37	bhi		icc0,#2,0b
38	bralr
39
40	.size		__insl_sw, .-__insl_sw
41