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dnl HP-PA mpn_lshift -- Shift a number left.
dnl Copyright 1992, 1994, 2000, 2001, 2002 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 3 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. If not, see http://www.gnu.org/licenses/.
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
LDEF(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
LDEF(0002)
stws,mb %r20,-4(0,%r26)
vshd %r29,%r0,%r20
bv 0(%r2)
stw %r20,-4(0,%r26)
LDEF(0003)
stws,mb %r20,-4(0,%r26)
LDEF(0004)
vshd %r22,%r0,%r20
bv 0(%r2)
stw %r20,-4(0,%r26)
EPILOGUE()
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