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-# IBM POWER __mpn_rshift --
-
-# Copyright (C) 1992, 1994 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 r3
-# s_ptr r4
-# size r5
-# cnt r6
-
- .toc
- .extern __mpn_rshift[DS]
- .extern .__mpn_rshift
-.csect [PR]
- .align 2
- .globl __mpn_rshift
- .globl .__mpn_rshift
- .csect __mpn_rshift[DS]
-__mpn_rshift:
- .long .__mpn_rshift, TOC[tc0], 0
- .csect [PR]
-.__mpn_rshift:
- sfi 8,6,32
- mtctr 5 # put limb count in CTR loop register
- l 0,0(4) # read least significant limb
- ai 9,3,-4 # adjust res_ptr since it's offset in the stu:s
- sle 3,0,8 # compute carry limb, and init MQ register
- bdz Lend2 # if just one limb, skip loop
- lu 0,4(4) # read 2:nd least significant limb
- sleq 7,0,8 # compute least significant limb of result
- bdz Lend # if just two limb, skip loop
-Loop: lu 0,4(4) # load next higher limb
- stu 7,4(9) # store previous result during read latency
- sleq 7,0,8 # compute result limb
- bdn Loop # loop back until CTR is zero
-Lend: stu 7,4(9) # store 2:nd most significant limb
-Lend2: sre 7,0,6 # compute most significant limb
- st 7,4(9) # store it" \
- br