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+ # 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