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- /* hppa rshift
- * optimized for the PA7100, where it runs at 3.25 cycles/limb
- *
- * Copyright (C) 1992, 1994, 1998,
- * 2001, 2002 Free Software Foundation, Inc.
- *
- * This file is part of Libgcrypt.
- *
- * Libgcrypt 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.
- *
- * Libgcrypt 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
- /*******************
- * mpi_limb_t
- * _gcry_mpih_rshift( mpi_ptr_t wp, (gr26)
- * mpi_ptr_t up, (gr25)
- * mpi_size_t usize, (gr24)
- * unsigned cnt) (gr23)
- */
- .code
- .export _gcry_mpih_rshift
- .label _gcry_mpih_rshift
- .proc
- .callinfo frame=64,no_calls
- .entry
- ldws,ma 4(0,%r25),%r22
- mtsar %r23
- addib,= -1,%r24,L$r004
- vshd %r22,%r0,%r28 ; compute carry out limb
- ldws,ma 4(0,%r25),%r29
- addib,<= -5,%r24,L$rrest
- vshd %r29,%r22,%r20
- .label L$roop
- ldws,ma 4(0,%r25),%r22
- stws,ma %r20,4(0,%r26)
- vshd %r22,%r29,%r20
- ldws,ma 4(0,%r25),%r29
- stws,ma %r20,4(0,%r26)
- vshd %r29,%r22,%r20
- ldws,ma 4(0,%r25),%r22
- stws,ma %r20,4(0,%r26)
- vshd %r22,%r29,%r20
- ldws,ma 4(0,%r25),%r29
- stws,ma %r20,4(0,%r26)
- addib,> -4,%r24,L$roop
- vshd %r29,%r22,%r20
- .label L$rrest
- addib,= 4,%r24,L$rend1
- nop
- .label L$eroop
- ldws,ma 4(0,%r25),%r22
- stws,ma %r20,4(0,%r26)
- addib,<= -1,%r24,L$rend2
- vshd %r22,%r29,%r20
- ldws,ma 4(0,%r25),%r29
- stws,ma %r20,4(0,%r26)
- addib,> -1,%r24,L$eroop
- vshd %r29,%r22,%r20
- .label L$rend1
- stws,ma %r20,4(0,%r26)
- vshd %r0,%r29,%r20
- bv 0(%r2)
- stw %r20,0(0,%r26)
- .label L$rend2
- stws,ma %r20,4(0,%r26)
- .label L$r004
- vshd %r0,%r22,%r20
- bv 0(%r2)
- stw %r20,0(0,%r26)
- .exit
- .procend
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