# MIPS3 __gmpn_rshift -- # Copyright (C) 1995, 2000 Free Software Foundation, Inc. # This file is part of the GNU MP Library. # The GNU MP Library is free software; you can redistribute it and/or modify # it under the terms of the GNU Library General Public License as published by # the Free Software Foundation; either version 2 of the License, or (at your # option) any later version. # The GNU MP Library is distributed in the hope that it will be useful, but # WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY # or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public # License for more details. # You should have received a copy of the GNU Library General Public License # along with the GNU MP Library; see the file COPYING.LIB. If not, write to # the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, # MA 02111-1307, USA. # INPUT PARAMETERS # res_ptr $4 # src_ptr $5 # size $6 # cnt $7 .text .align 2 .globl __gmpn_rshift .ent __gmpn_rshift __gmpn_rshift: .set noreorder .set nomacro ld $10,0($5) # load first limb dsubu $13,$0,$7 daddiu $6,$6,-1 and $9,$6,4-1 # number of limbs in first loop beq $9,$0,.L0 # if multiple of 4 limbs, skip first loop dsll $2,$10,$13 # compute function result dsubu $6,$6,$9 .Loop0: ld $3,8($5) daddiu $4,$4,8 daddiu $5,$5,8 daddiu $9,$9,-1 dsrl $11,$10,$7 dsll $12,$3,$13 move $10,$3 or $8,$11,$12 bne $9,$0,.Loop0 sd $8,-8($4) .L0: beq $6,$0,.Lend nop .Loop: ld $3,8($5) daddiu $4,$4,32 daddiu $6,$6,-4 dsrl $11,$10,$7 dsll $12,$3,$13 ld $10,16($5) dsrl $14,$3,$7 or $8,$11,$12 sd $8,-32($4) dsll $9,$10,$13 ld $3,24($5) dsrl $11,$10,$7 or $8,$14,$9 sd $8,-24($4) dsll $12,$3,$13 ld $10,32($5) dsrl $14,$3,$7 or $8,$11,$12 sd $8,-16($4) dsll $9,$10,$13 daddiu $5,$5,32 or $8,$14,$9 bgtz $6,.Loop sd $8,-8($4) .Lend: dsrl $8,$10,$7 j $31 sd $8,0($4) .end __gmpn_rshift