Annotation of OpenXM/src/kan96xx/gmp-2.0.2-ssh-2/mpn/mips3/rshift.s, Revision 1.1
1.1 ! takayama 1: # MIPS3 __mpn_rshift --
! 2:
! 3: # Copyright (C) 1995 Free Software Foundation, Inc.
! 4:
! 5: # This file is part of the GNU MP Library.
! 6:
! 7: # The GNU MP Library is free software; you can redistribute it and/or modify
! 8: # it under the terms of the GNU Library General Public License as published by
! 9: # the Free Software Foundation; either version 2 of the License, or (at your
! 10: # option) any later version.
! 11:
! 12: # The GNU MP Library is distributed in the hope that it will be useful, but
! 13: # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
! 14: # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
! 15: # License for more details.
! 16:
! 17: # You should have received a copy of the GNU Library General Public License
! 18: # along with the GNU MP Library; see the file COPYING.LIB. If not, write to
! 19: # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
! 20: # MA 02111-1307, USA.
! 21:
! 22:
! 23: # INPUT PARAMETERS
! 24: # res_ptr $4
! 25: # src_ptr $5
! 26: # size $6
! 27: # cnt $7
! 28:
! 29: .text
! 30: .align 2
! 31: .globl __mpn_rshift
! 32: .ent __mpn_rshift
! 33: __mpn_rshift:
! 34: .set noreorder
! 35: .set nomacro
! 36:
! 37: ld $10,0($5) # load first limb
! 38: dsubu $13,$0,$7
! 39: daddiu $6,$6,-1
! 40: and $9,$6,4-1 # number of limbs in first loop
! 41: beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop
! 42: dsll $2,$10,$13 # compute function result
! 43:
! 44: dsubu $6,$6,$9
! 45:
! 46: .Loop0: ld $3,8($5)
! 47: daddiu $4,$4,8
! 48: daddiu $5,$5,8
! 49: daddiu $9,$9,-1
! 50: dsrl $11,$10,$7
! 51: dsll $12,$3,$13
! 52: move $10,$3
! 53: or $8,$11,$12
! 54: bne $9,$0,.Loop0
! 55: sd $8,-8($4)
! 56:
! 57: .L0: beq $6,$0,.Lend
! 58: nop
! 59:
! 60: .Loop: ld $3,8($5)
! 61: daddiu $4,$4,32
! 62: daddiu $6,$6,-4
! 63: dsrl $11,$10,$7
! 64: dsll $12,$3,$13
! 65:
! 66: ld $10,16($5)
! 67: dsrl $14,$3,$7
! 68: or $8,$11,$12
! 69: sd $8,-32($4)
! 70: dsll $9,$10,$13
! 71:
! 72: ld $3,24($5)
! 73: dsrl $11,$10,$7
! 74: or $8,$14,$9
! 75: sd $8,-24($4)
! 76: dsll $12,$3,$13
! 77:
! 78: ld $10,32($5)
! 79: dsrl $14,$3,$7
! 80: or $8,$11,$12
! 81: sd $8,-16($4)
! 82: dsll $9,$10,$13
! 83:
! 84: daddiu $5,$5,32
! 85: or $8,$14,$9
! 86: bgtz $6,.Loop
! 87: sd $8,-8($4)
! 88:
! 89: .Lend: dsrl $8,$10,$7
! 90: j $31
! 91: sd $8,0($4)
! 92: .end __mpn_rshift
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