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kernel/linux-rt-4.4.41/arch/frv/lib/outsl_sw.S 1.11 KB
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  /* outsl_ns.S: output array of 4b words to device with byte swapping
   *
   * Copyright (C) 2003 Red Hat, Inc. All Rights Reserved.
   * Written by David Howells (dhowells@redhat.com)
   *
   * This program is free software; you can redistribute it and/or
   * modify it under the terms of the GNU General Public License
   * as published by the Free Software Foundation; either version
   * 2 of the License, or (at your option) any later version.
   */
  
  
          .text
          .p2align	4
  
  ###############################################################################
  #
  # void __outsl_sw(unsigned int port, const void *buf, int n)
  #
  ###############################################################################
          .globl		__outsl_sw
          .type		__outsl_sw,@function
  __outsl_sw:
  	subi.p		gr9,#1,gr9
  	setlos		#1,gr4
  0:
  	ldubu		@(gr9,gr4),gr5
  	ldubu		@(gr9,gr4),gr6
  	slli		gr6,#8,gr6
  	ldubu.p		@(gr9,gr4),gr7
  	or		gr5,gr6,gr5
  	ldubu.p		@(gr9,gr4),gr6
  	slli		gr7,#16,gr7
  	slli.p		gr6,#24,gr6
  	or		gr5,gr7,gr5
  	subicc.p	gr10,#1,gr10,icc0
  	or		gr5,gr6,gr5
  
  	sti.p		gr5,@(gr8,#0)
  	bhi		icc0,#2,0b
  
  	membar
  	bralr
  
  	.size		__outsl_sw, .-__outsl_sw