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+# IBM POWER __mpn_lshift -- 
+
+# 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 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+
+# INPUT PARAMETERS
+# res_ptr	r3
+# s_ptr		r4
+# size		r5
+# cnt		r6
+
+	.toc
+	.extern __mpn_lshift[DS]
+	.extern .__mpn_lshift
+.csect [PR]
+	.align 2
+	.globl __mpn_lshift
+	.globl .__mpn_lshift
+	.csect __mpn_lshift[DS]
+__mpn_lshift:
+	.long .__mpn_lshift, TOC[tc0], 0
+	.csect [PR]
+.__mpn_lshift:
+	sli	0,5,2
+	cax	9,3,0
+	cax	4,4,0
+	sfi	8,6,32
+	mtctr	5		# put limb count in CTR loop register
+	lu	0,-4(4)		# read most significant limb
+	sre	3,0,8		# compute carry out limb, and init MQ register
+	bdz	Lend2		# if just one limb, skip loop
+	lu	0,-4(4)		# read 2:nd most significant limb
+	sreq	7,0,8		# compute most significant limb of result
+	bdz	Lend		# if just two limb, skip loop
+Loop:	lu	0,-4(4)		# load next lower limb
+	stu	7,-4(9)		# store previous result during read latency
+	sreq	7,0,8		# compute result limb
+	bdn	Loop		# loop back until CTR is zero
+Lend:	stu	7,-4(9)		# store 2:nd least significant limb
+Lend2:	sle	7,0,6		# compute least significant limb
+	st      7,-4(9)		# store it"				\
+	br