arch/metag/lib/modsi3.S

   1 ! SPDX-License-Identifier: GPL-2.0
   2 ! Copyright (C) 2001, 2002, 2003, 2004, 2005, 2006, 2007
   3 !               Imagination Technologies Ltd
   4 !
   5 ! Integer modulus routines.
   6 !
   7 !!
   8 !! 32-bit modulus unsigned i/p - passed unsigned 32-bit numbers
   9 !!
  10         .text
  11         .global ___umodsi3
  12         .type   ___umodsi3,function
  13         .align  2
  14 ___umodsi3:
  15         MOV     D0FrT,D1RtP             ! Save original return address
  16         CALLR   D1RtP,___udivsi3
  17         MOV     D1RtP,D0FrT             ! Recover return address
  18         MOV     D0Re0,D1Ar1             ! Return remainder
  19         MOV     PC,D1RtP
  20         .size   ___umodsi3,.-___umodsi3
  21
  22 !!
  23 !! 32-bit modulus signed i/p - passed signed 32-bit numbers
  24 !!
  25         .global ___modsi3
  26         .type   ___modsi3,function
  27         .align  2
  28 ___modsi3:
  29         MOV     D0FrT,D1RtP             ! Save original return address
  30         MOV     A0.2,D1Ar1              ! Save A in A0.2
  31         CALLR   D1RtP,___divsi3
  32         MOV     D1RtP,D0FrT             ! Recover return address
  33         MOV     D1Re0,A0.2              ! Recover A
  34         MOV     D0Re0,D1Ar1             ! Return remainder
  35         ORS     D1Re0,D1Re0,D1Re0       ! Was A negative?
  36         NEG     D1Ar1,D1Ar1             ! Negate remainder
  37         MOVMI   D0Re0,D1Ar1             ! Return neg remainder
  38         MOV     PC, D1RtP
  39         .size   ___modsi3,.-___modsi3