# MIPS2 __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 Lesser General Public License as published by # the Free Software Foundation; either version 2.1 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 Lesser General Public # License for more details. # You should have received a copy of the GNU Lesser 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 lw $10,0($5) # load first limb subu $13,$0,$7 addiu $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 sll $2,$10,$13 # compute function result subu $6,$6,$9 .Loop0: lw $3,4($5) addiu $4,$4,4 addiu $5,$5,4 addiu $9,$9,-1 srl $11,$10,$7 sll $12,$3,$13 move $10,$3 or $8,$11,$12 bne $9,$0,.Loop0 sw $8,-4($4) .L0: beq $6,$0,.Lend nop .Loop: lw $3,4($5) addiu $4,$4,16 addiu $6,$6,-4 srl $11,$10,$7 sll $12,$3,$13 lw $10,8($5) srl $14,$3,$7 or $8,$11,$12 sw $8,-16($4) sll $9,$10,$13 lw $3,12($5) srl $11,$10,$7 or $8,$14,$9 sw $8,-12($4) sll $12,$3,$13 lw $10,16($5) srl $14,$3,$7 or $8,$11,$12 sw $8,-8($4) sll $9,$10,$13 addiu $5,$5,16 or $8,$14,$9 bgtz $6,.Loop sw $8,-4($4) .Lend: srl $8,$10,$7 j $31 sw $8,0($4) .end __gmpn_rshift