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/* hppa lshift
* optimized for the PA7100, where it runs at 3.25 cycles/limb
*
* Copyright (C) 1992, 1994, 1998,
* 2001 Free Software Foundation, Inc.
*
* This file is part of GnuPG.
*
* GnuPG is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* GnuPG 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
* USA.
*/
/*******************
* mpi_limb_t
* mpihelp_lshift( mpi_ptr_t wp, (gr26)
* mpi_ptr_t up, (gr25)
* mpi_size_t usize, (gr24)
* unsigned cnt) (gr23)
*/
.code
.export mpihelp_lshift
.label mpihelp_lshift
.proc
.callinfo frame=64,no_calls
.entry
sh2add %r24,%r25,%r25
sh2add %r24,%r26,%r26
ldws,mb -4(0,%r25),%r22
subi 32,%r23,%r1
mtsar %r1
addib,= -1,%r24,L$0004
vshd %r0,%r22,%r28 ; compute carry out limb
ldws,mb -4(0,%r25),%r29
addib,<= -5,%r24,L$rest
vshd %r22,%r29,%r20
.label L$loop
ldws,mb -4(0,%r25),%r22
stws,mb %r20,-4(0,%r26)
vshd %r29,%r22,%r20
ldws,mb -4(0,%r25),%r29
stws,mb %r20,-4(0,%r26)
vshd %r22,%r29,%r20
ldws,mb -4(0,%r25),%r22
stws,mb %r20,-4(0,%r26)
vshd %r29,%r22,%r20
ldws,mb -4(0,%r25),%r29
stws,mb %r20,-4(0,%r26)
addib,> -4,%r24,L$loop
vshd %r22,%r29,%r20
.label L$rest
addib,= 4,%r24,L$end1
nop
.label L$eloop
ldws,mb -4(0,%r25),%r22
stws,mb %r20,-4(0,%r26)
addib,<= -1,%r24,L$end2
vshd %r29,%r22,%r20
ldws,mb -4(0,%r25),%r29
stws,mb %r20,-4(0,%r26)
addib,> -1,%r24,L$eloop
vshd %r22,%r29,%r20
.label L$end1
stws,mb %r20,-4(0,%r26)
vshd %r29,%r0,%r20
bv 0(%r2)
stw %r20,-4(0,%r26)
.label L$end2
stws,mb %r20,-4(0,%r26)
.label L$0004
vshd %r22,%r0,%r20
bv 0(%r2)
stw %r20,-4(0,%r26)
.exit
.procend
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