# PowerPC-32 __mpn_rshift --

# Copyright (C) 1995 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	r3
# s1_ptr	r4
# size		r5
# cnt		r6

	.align 3
	.globl __mpn_rshift
	.type	 __mpn_rshift,@function
__mpn_rshift:
	mtctr	5		# copy size into CTR
	addi	7,3,-4		# move adjusted res_ptr to free return reg
	subfic	8,6,32
	lwz	11,0(4)		# load first s1 limb
	slw	3,11,8		# compute function return value
	bdz	Lend1

Loop:	lwzu	10,4(4)
	srw	9,11,6
	slw	12,10,8
	or	9,9,12
	stwu	9,4(7)
	bdz	Lend2
	lwzu	11,4(4)
	srw	9,10,6
	slw	12,11,8
	or	9,9,12
	stwu	9,4(7)
	bdnz	Loop

Lend1:	srw	0,11,6
	stw	0,4(7)
	blr

Lend2:	srw	0,10,6
	stw	0,4(7)
	blr