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