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Diffstat (limited to '')
| -rw-r--r-- | mpi/pa7100/mpih-rshift.S | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/mpi/pa7100/mpih-rshift.S b/mpi/pa7100/mpih-rshift.S new file mode 100644 index 000000000..b409de042 --- /dev/null +++ b/mpi/pa7100/mpih-rshift.S @@ -0,0 +1,85 @@ +/* hppa rshift + * optimized for the PA7100, where is runs at 3.25 cycles/limb + * Copyright (C) 1992, 1994 Free Software Foundation, Inc. + * Copyright (C) 1998 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA + */ + + + +/******************* + * mpi_limb_t + * mpihelp_rshift( mpi_ptr_t wp, (gr26) + * mpi_ptr_t up, (gr25) + * mpi_size_t usize, (gr24) + * unsigned cnt) (gr23) + */ + + .code + .export mpihelp_rshift +mpihelp_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 + +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 + +L$rrest addib,= 4,%r24,L$rend1 + nop +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$eroop + vshd %r29,%r22,%r20 + +L$rend1 stws,ma %r20,4(0,%r26) + vshd %r0,%r29,%r20 + bv 0(%r2) + stw %r20,0(0,%r26) +L$rend2 stws,ma %r20,4(0,%r26) +L$r004 vshd %r0,%r22,%r20 + bv 0(%r2) + stw %r20,0(0,%r26) + + .exit + .procend + + |