arch/metag/lib/modsi3.S

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