dnl  HP-PA  mpn_lshift -- Shift a number left.

dnl  Copyright 1992, 1994, 2000, 2001 Free Software Foundation, Inc.

dnl  This file is part of the GNU MP Library.

dnl  The GNU MP Library is free software; you can redistribute it and/or modify
dnl  it under the terms of the GNU Lesser General Public License as published
dnl  by the Free Software Foundation; either version 2.1 of the License, or (at
dnl  your option) any later version.

dnl  The GNU MP Library is distributed in the hope that it will be useful, but
dnl  WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
dnl  or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public
dnl  License for more details.

dnl  You should have received a copy of the GNU Lesser General Public License
dnl  along with the GNU MP Library; see the file COPYING.LIB.  If not, write to
dnl  the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
dnl  MA 02111-1307, USA.

include(`../config.m4')

C INPUT PARAMETERS
C res_ptr	gr26
C s_ptr		gr25
C size		gr24
C cnt		gr23

ASM_START()
PROLOGUE(mpn_lshift)
	sh2add		%r24,%r25,%r25
	sh2add		%r24,%r26,%r26
	ldws,mb		-4(0,%r25),%r22
	subi		32,%r23,%r1
	mtsar		%r1
	addib,=		-1,%r24,L$0004
	vshd		%r0,%r22,%r28		C compute carry out limb
	ldws,mb		-4(0,%r25),%r29
	addib,=		-1,%r24,L$0002
	vshd		%r22,%r29,%r20

	.label	L$loop
	ldws,mb		-4(0,%r25),%r22
	stws,mb		%r20,-4(0,%r26)
	addib,=		-1,%r24,L$0003
	vshd		%r29,%r22,%r20
	ldws,mb		-4(0,%r25),%r29
	stws,mb		%r20,-4(0,%r26)
	addib,<>	-1,%r24,L$loop
	vshd		%r22,%r29,%r20

	.label	L$0002
	stws,mb		%r20,-4(0,%r26)
	vshd		%r29,%r0,%r20
	bv		0(%r2)
	stw		%r20,-4(0,%r26)

	.label	L$0003
	stws,mb		%r20,-4(0,%r26)

	.label	L$0004
	vshd		%r22,%r0,%r20
	bv		0(%r2)
	stw		%r20,-4(0,%r26)
EPILOGUE()
