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kernel/linux-rt-4.4.41/arch/frv/lib/__muldi3.S 1.04 KB
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  /* __muldi3.S:	64-bit multiply
   *
   * 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
  
  ###############################################################################
  #
  # unsigned long long __muldi3(unsigned long long x [GR8:GR9],
  #                             unsigned long long y [GR10:GR11])
  #
  ###############################################################################
          .globl		__muldi3, __mulll, __umulll
          .type		__muldi3,@function
  __muldi3:
  __mulll:
  __umulll:
  	umul		gr8,gr11,gr4		; GR4:GR5 = x.MSW * y.LSW
  	umul		gr9,gr10,gr6		; GR6:GR7 = x.LSW * y.MSW
  	umul.p		gr9,gr11,gr8		; GR8:GR9 = x.LSW * y.LSW
  	add		gr5,gr7,gr5
  	add.p		gr8,gr5,gr8		; GR8 += GR5 + GR7
  	bralr
  	.size		__muldi3, .-__muldi3