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added assembler stuff for hppa
This commit is contained in:
Werner Koch
parent
fec94908c3
commit
b9fccd69e4
@ -37,7 +37,7 @@ case "${target}" in
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;;
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;;
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hppa7000*-*-*)
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hppa7000*-*-*)
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echo '/* configured for HPPA (pa7000) */' >>./mpi/asm-syntax.h
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echo '/* configured for HPPA (pa7000) */' >>./mpi/asm-syntax.h
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path="hppa1_1 hppa"
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path="hppa1.1 hppa"
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mpi_extra_modules="udiv-qrnnd"
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mpi_extra_modules="udiv-qrnnd"
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;;
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;;
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hppa1.0*-*-*)
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hppa1.0*-*-*)
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@ -47,7 +47,7 @@ case "${target}" in
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;;
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;;
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hppa*-*-*) # assume pa7100
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hppa*-*-*) # assume pa7100
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echo '/* configured for HPPA (pa7100) */' >>./mpi/asm-syntax.h
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echo '/* configured for HPPA (pa7100) */' >>./mpi/asm-syntax.h
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path="pa7100 hppa1_1 hppa"
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path="pa7100 hppa1.1 hppa"
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mpi_extra_modules="udiv-qrnnd"
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mpi_extra_modules="udiv-qrnnd"
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;;
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;;
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sparc9*-*-* | sparc64*-*-* | ultrasparc*-*-*)
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sparc9*-*-* | sparc64*-*-* | ultrasparc*-*-*)
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84
mpi/hppa/README
Normal file
84
mpi/hppa/README
Normal file
@ -0,0 +1,84 @@
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This directory contains mpn functions for various HP PA-RISC chips. Code
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that runs faster on the PA7100 and later implementations, is in the pa7100
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directory.
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RELEVANT OPTIMIZATION ISSUES
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Load and Store timing
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On the PA7000 no memory instructions can issue the two cycles after a store.
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For the PA7100, this is reduced to one cycle.
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The PA7100 has a lookup-free cache, so it helps to schedule loads and the
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dependent instruction really far from each other.
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STATUS
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1. mpn_mul_1 could be improved to 6.5 cycles/limb on the PA7100, using the
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instructions bwlow (but some sw pipelining is needed to avoid the
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xmpyu-fstds delay):
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fldds s1_ptr
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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addc
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stws res_ptr
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addc
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stws res_ptr
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addib Loop
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2. mpn_addmul_1 could be improved from the current 10 to 7.5 cycles/limb
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(asymptotically) on the PA7100, using the instructions below. With proper
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sw pipelining and the unrolling level below, the speed becomes 8
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cycles/limb.
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fldds s1_ptr
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fldds s1_ptr
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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xmpyu
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fstds N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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ldws N(%r30)
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addc
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addc
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addc
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addc
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addc %r0,%r0,cy-limb
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ldws res_ptr
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ldws res_ptr
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ldws res_ptr
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ldws res_ptr
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add
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stws res_ptr
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addc
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stws res_ptr
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addc
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stws res_ptr
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addc
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stws res_ptr
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addib
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@ -1,4 +1,6 @@
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README
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mpih-add1.S
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udiv-qrnnd.S
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udiv-qrnnd.S
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mpih-add1.S
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mpih-sub1.S
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mpih-shift.S
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124
mpi/hppa/mpih-shift.S
Normal file
124
mpi/hppa/mpih-shift.S
Normal file
@ -0,0 +1,124 @@
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/* hppa rshift, lshift
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* Copyright (C) 1992, 1994 Free Software Foundation, Inc.
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* Copyright (c) 1997 by Werner Koch (dd9jn)
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*
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* This file is part of G10.
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*
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* G10 is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* G10 is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*
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* Note: This code is heavily based on the GNU MP Library.
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* Actually it's the same code with only minor changes in the
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* way the data is stored; this is to support the abstraction
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* of an optional secure memory allocation which may be used
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* to avoid revealing of sensitive data due to paging etc.
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* The GNU MP Library itself is published under the LGPL;
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* however I decided to publish this code under the plain GPL.
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*/
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/*******************
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* mpi_limb_t
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* mpihelp_lshift( mpi_ptr_t wp, (gr26)
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* mpi_ptr_t up, (gr25)
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* mpi_size_t usize, (gr24)
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* unsigned cnt) (gr23)
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*/
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.code
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.export mpihelp_lshift
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mpihelp_lshift
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.proc
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.callinfo frame=64,no_calls
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.entry
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sh2add %r24,%r25,%r25
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sh2add %r24,%r26,%r26
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ldws,mb -4(0,%r25),%r22
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subi 32,%r23,%r1
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mtsar %r1
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addib,= -1,%r24,L$0004
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vshd %r0,%r22,%r28 ; compute carry out limb
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ldws,mb -4(0,%r25),%r29
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addib,= -1,%r24,L$0002
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vshd %r22,%r29,%r20
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L$loop ldws,mb -4(0,%r25),%r22
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stws,mb %r20,-4(0,%r26)
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addib,= -1,%r24,L$0003
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vshd %r29,%r22,%r20
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ldws,mb -4(0,%r25),%r29
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stws,mb %r20,-4(0,%r26)
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addib,<> -1,%r24,L$loop
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vshd %r22,%r29,%r20
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L$0002 stws,mb %r20,-4(0,%r26)
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vshd %r29,%r0,%r20
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bv 0(%r2)
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stw %r20,-4(0,%r26)
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L$0003 stws,mb %r20,-4(0,%r26)
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L$0004 vshd %r22,%r0,%r20
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bv 0(%r2)
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stw %r20,-4(0,%r26)
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.exit
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.procend
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/*******************
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* mpi_limb_t
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* mpihelp_rshift( mpi_ptr_t wp, (gr26)
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* mpi_ptr_t up, (gr25)
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* mpi_size_t usize, (gr24)
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* unsigned cnt) (gr23)
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*/
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.code
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.export mpihelp_rshift
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mpihelp_rshift
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.proc
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.callinfo frame=64,no_calls
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.entry
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ldws,ma 4(0,%r25),%r22
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mtsar %r23
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addib,= -1,%r24,L$r004
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vshd %r22,%r0,%r28 ; compute carry out limb
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ldws,ma 4(0,%r25),%r29
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addib,= -1,%r24,L$r002
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vshd %r29,%r22,%r20
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L$roop ldws,ma 4(0,%r25),%r22
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stws,ma %r20,4(0,%r26)
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addib,= -1,%r24,L$r003
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vshd %r22,%r29,%r20
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ldws,ma 4(0,%r25),%r29
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stws,ma %r20,4(0,%r26)
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addib,<> -1,%r24,L$roop
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vshd %r29,%r22,%r20
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L$r002 stws,ma %r20,4(0,%r26)
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vshd %r0,%r29,%r20
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bv 0(%r2)
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stw %r20,0(0,%r26)
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L$r003 stws,ma %r20,4(0,%r26)
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L$r004 vshd %r0,%r22,%r20
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bv 0(%r2)
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stw %r20,0(0,%r26)
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.exit
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.procend
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77
mpi/hppa/mpih-sub1.S
Normal file
77
mpi/hppa/mpih-sub1.S
Normal file
@ -0,0 +1,77 @@
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/* hppa sub_n -- Sub two limb vectors of the same length > 0 and store
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* sum in a third limb vector.
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* Copyright (C) 1992, 1994 Free Software Foundation, Inc.
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* Copyright (c) 1998 by Werner Koch (dd9jn)
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|
*
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|
* This file is part of G10.
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|
*
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|
* G10 is free software; you can redistribute it and/or modify
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||||||
|
* 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.
|
||||||
|
*
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||||||
|
* G10 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
|
||||||
|
*
|
||||||
|
* Note: This code is heavily based on the GNU MP Library.
|
||||||
|
* Actually it's the same code with only minor changes in the
|
||||||
|
* way the data is stored; this is to support the abstraction
|
||||||
|
* of an optional secure memory allocation which may be used
|
||||||
|
* to avoid revealing of sensitive data due to paging etc.
|
||||||
|
* The GNU MP Library itself is published under the LGPL;
|
||||||
|
* however I decided to publish this code under the plain GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
#include "sysdep.h"
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|
#include "asm-syntax.h"
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|
|
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|
|
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|
/*******************
|
||||||
|
* mpi_limb_t
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|
* mpihelp_sub_n( mpi_ptr_t res_ptr, (gr26)
|
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|
* mpi_ptr_t s1_ptr, (gr25)
|
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|
* mpi_ptr_t s2_ptr, (gr24)
|
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|
* mpi_size_t size) (gr23)
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||||||
|
*
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|
* One might want to unroll this as for other processors, but it turns
|
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|
* out that the data cache contention after a store makes such
|
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|
* unrolling useless. We can't come under 5 cycles/limb anyway.
|
||||||
|
*/
|
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|
|
||||||
|
|
||||||
|
.code
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|
.export mpihelp_sub_n
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|
mpihelp_sub_n
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|
.proc
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|
.callinfo frame=0,no_calls
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|
.entry
|
||||||
|
|
||||||
|
ldws,ma 4(0,%r25),%r20
|
||||||
|
ldws,ma 4(0,%r24),%r19
|
||||||
|
|
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|
addib,= -1,%r23,L$end ; check for (SIZE == 1)
|
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|
sub %r20,%r19,%r28 ; subtract first limbs ignoring cy
|
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|
|
||||||
|
L$loop ldws,ma 4(0,%r25),%r20
|
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|
ldws,ma 4(0,%r24),%r19
|
||||||
|
stws,ma %r28,4(0,%r26)
|
||||||
|
addib,<> -1,%r23,L$loop
|
||||||
|
subb %r20,%r19,%r28
|
||||||
|
|
||||||
|
L$end stws %r28,0(0,%r26)
|
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|
addc %r0,%r0,%r28
|
||||||
|
bv 0(%r2)
|
||||||
|
subi 1,%r28,%r28
|
||||||
|
|
||||||
|
.exit
|
||||||
|
.procend
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
5
mpi/hppa1.1/distfiles
Normal file
5
mpi/hppa1.1/distfiles
Normal file
@ -0,0 +1,5 @@
|
|||||||
|
udiv-qrnnd.S
|
||||||
|
mpih-mul1.S
|
||||||
|
mpih-mul2.S
|
||||||
|
mpih-mul3.S
|
||||||
|
|
||||||
112
mpi/hppa1.1/mpih-mul1.S
Normal file
112
mpi/hppa1.1/mpih-mul1.S
Normal file
@ -0,0 +1,112 @@
|
|||||||
|
/* hppa1.1 mul_1 -- Multiply a limb vector with a limb and store
|
||||||
|
* the result in a second limb vector.
|
||||||
|
* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
|
||||||
|
* Copyright (c) 1998 by Werner Koch (dd9jn)
|
||||||
|
*
|
||||||
|
* This file is part of G10.
|
||||||
|
*
|
||||||
|
* G10 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.
|
||||||
|
*
|
||||||
|
* G10 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
|
||||||
|
*
|
||||||
|
* Note: This code is heavily based on the GNU MP Library.
|
||||||
|
* Actually it's the same code with only minor changes in the
|
||||||
|
* way the data is stored; this is to support the abstraction
|
||||||
|
* of an optional secure memory allocation which may be used
|
||||||
|
* to avoid revealing of sensitive data due to paging etc.
|
||||||
|
* The GNU MP Library itself is published under the LGPL;
|
||||||
|
* however I decided to publish this code under the plain GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
/*******************
|
||||||
|
* mpi_limb_t
|
||||||
|
* mpihelp_mul_1( mpi_ptr_t res_ptr, (r26)
|
||||||
|
* mpi_ptr_t s1_ptr, (r25)
|
||||||
|
* mpi_size_t s1_size, (r24)
|
||||||
|
* mpi_limb_t s2_limb) (r23)
|
||||||
|
*
|
||||||
|
*
|
||||||
|
*
|
||||||
|
* This runs at 9 cycles/limb on a PA7000. With the used instructions, it can
|
||||||
|
* not become faster due to data cache contention after a store. On the
|
||||||
|
* PA7100 it runs at 7 cycles/limb, and that can not be improved either, since
|
||||||
|
* only the xmpyu does not need the integer pipeline, so the only dual-issue
|
||||||
|
* we will get are addc+xmpyu. Unrolling would not help either CPU.
|
||||||
|
*
|
||||||
|
* We could use fldds to read two limbs at a time from the S1 array, and that
|
||||||
|
* could bring down the times to 8.5 and 6.5 cycles/limb for the PA7000 and
|
||||||
|
* PA7100, respectively. We don't do that since it does not seem worth the
|
||||||
|
* (alignment) troubles...
|
||||||
|
*
|
||||||
|
* At least the PA7100 is rumored to be able to deal with cache-misses
|
||||||
|
* without stalling instruction issue. If this is true, and the cache is
|
||||||
|
* actually also lockup-free, we should use a deeper software pipeline, and
|
||||||
|
* load from S1 very early! (The loads and stores to -12(sp) will surely be
|
||||||
|
* in the cache.)
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code
|
||||||
|
.export mpihelp_mul_1
|
||||||
|
mpihelp_mul_1
|
||||||
|
.proc
|
||||||
|
.callinfo frame=64,no_calls
|
||||||
|
.entry
|
||||||
|
|
||||||
|
ldo 64(%r30),%r30
|
||||||
|
fldws,ma 4(%r25),%fr5
|
||||||
|
stw %r23,-16(%r30) ; move s2_limb ...
|
||||||
|
addib,= -1,%r24,L$just_one_limb
|
||||||
|
fldws -16(%r30),%fr4 ; ... into fr4
|
||||||
|
add %r0,%r0,%r0 ; clear carry
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
fldws,ma 4(%r25),%fr7
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
xmpyu %fr4,%fr7,%fr8
|
||||||
|
ldw -12(%r30),%r19 ; least significant limb in product
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
|
||||||
|
fstds %fr8,-16(%r30)
|
||||||
|
addib,= -1,%r24,L$end
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
|
||||||
|
; Main loop
|
||||||
|
L$loop fldws,ma 4(%r25),%fr5
|
||||||
|
stws,ma %r19,4(%r26)
|
||||||
|
addc %r28,%r1,%r19
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
addib,<> -1,%r24,L$loop
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
|
||||||
|
L$end stws,ma %r19,4(%r26)
|
||||||
|
addc %r28,%r1,%r19
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
stws,ma %r19,4(%r26)
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
bv 0(%r2)
|
||||||
|
ldo -64(%r30),%r30
|
||||||
|
|
||||||
|
L$just_one_limb
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
ldo -64(%r30),%r30
|
||||||
|
bv 0(%r2)
|
||||||
|
fstws %fr6R,0(%r26)
|
||||||
|
|
||||||
|
.exit
|
||||||
|
.procend
|
||||||
|
|
||||||
|
|
||||||
114
mpi/hppa1.1/mpih-mul2.S
Normal file
114
mpi/hppa1.1/mpih-mul2.S
Normal file
@ -0,0 +1,114 @@
|
|||||||
|
/* hppa1.1 addmul_1 -- Multiply a limb vector with a limb and add
|
||||||
|
* the result to a second limb vector.
|
||||||
|
* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
|
||||||
|
* Copyright (c) 1997 by Werner Koch (dd9jn)
|
||||||
|
*
|
||||||
|
* This file is part of G10.
|
||||||
|
*
|
||||||
|
* G10 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.
|
||||||
|
*
|
||||||
|
* G10 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
|
||||||
|
*
|
||||||
|
* Note: This code is heavily based on the GNU MP Library.
|
||||||
|
* Actually it's the same code with only minor changes in the
|
||||||
|
* way the data is stored; this is to support the abstraction
|
||||||
|
* of an optional secure memory allocation which may be used
|
||||||
|
* to avoid revealing of sensitive data due to paging etc.
|
||||||
|
* The GNU MP Library itself is published under the LGPL;
|
||||||
|
* however I decided to publish this code under the plain GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
/*******************
|
||||||
|
* mpi_limb_t
|
||||||
|
* mpihelp_addmul_1( mpi_ptr_t res_ptr, (r26)
|
||||||
|
* mpi_ptr_t s1_ptr, (r25)
|
||||||
|
* mpi_size_t s1_size, (r24)
|
||||||
|
* mpi_limb_t s2_limb) (r23)
|
||||||
|
*
|
||||||
|
* This runs at 11 cycles/limb on a PA7000. With the used instructions, it
|
||||||
|
* can not become faster due to data cache contention after a store. On the
|
||||||
|
* PA7100 it runs at 10 cycles/limb, and that can not be improved either,
|
||||||
|
* since only the xmpyu does not need the integer pipeline, so the only
|
||||||
|
* dual-issue we will get are addc+xmpyu. Unrolling could gain a cycle/limb
|
||||||
|
* on the PA7100.
|
||||||
|
*
|
||||||
|
* There are some ideas described in mul1.S that applies to this code too.
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code
|
||||||
|
.export mpihelp_addmul_1
|
||||||
|
mpihelp_addmul_1
|
||||||
|
.proc
|
||||||
|
.callinfo frame=64,no_calls
|
||||||
|
.entry
|
||||||
|
|
||||||
|
ldo 64(%r30),%r30
|
||||||
|
fldws,ma 4(%r25),%fr5
|
||||||
|
stw %r23,-16(%r30) ; move s2_limb ...
|
||||||
|
addib,= -1,%r24,L$just_one_limb
|
||||||
|
fldws -16(%r30),%fr4 ; ... into fr4
|
||||||
|
add %r0,%r0,%r0 ; clear carry
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
fldws,ma 4(%r25),%fr7
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
xmpyu %fr4,%fr7,%fr8
|
||||||
|
ldw -12(%r30),%r19 ; least significant limb in product
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
|
||||||
|
fstds %fr8,-16(%r30)
|
||||||
|
addib,= -1,%r24,L$end
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
|
||||||
|
; Main loop
|
||||||
|
L$loop ldws 0(%r26),%r29
|
||||||
|
fldws,ma 4(%r25),%fr5
|
||||||
|
add %r29,%r19,%r19
|
||||||
|
stws,ma %r19,4(%r26)
|
||||||
|
addc %r28,%r1,%r19
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
addib,<> -1,%r24,L$loop
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
|
||||||
|
L$end ldw 0(%r26),%r29
|
||||||
|
add %r29,%r19,%r19
|
||||||
|
stws,ma %r19,4(%r26)
|
||||||
|
addc %r28,%r1,%r19
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
ldws 0(%r26),%r29
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
add %r29,%r19,%r19
|
||||||
|
stws,ma %r19,4(%r26)
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
bv 0(%r2)
|
||||||
|
ldo -64(%r30),%r30
|
||||||
|
|
||||||
|
L$just_one_limb
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
ldw 0(%r26),%r29
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
add %r29,%r1,%r19
|
||||||
|
stw %r19,0(%r26)
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
bv 0(%r2)
|
||||||
|
ldo -64(%r30),%r30
|
||||||
|
|
||||||
|
.exit
|
||||||
|
.procend
|
||||||
|
|
||||||
|
|
||||||
124
mpi/hppa1.1/mpih-mul3.S
Normal file
124
mpi/hppa1.1/mpih-mul3.S
Normal file
@ -0,0 +1,124 @@
|
|||||||
|
/* hppa1.1 submul_1 -- Multiply a limb vector with a limb and add
|
||||||
|
* the result to a second limb vector.
|
||||||
|
* Copyright (C) 1992, 1993, 1994 Free Software Foundation, Inc.
|
||||||
|
* Copyright (c) 1997 by Werner Koch (dd9jn)
|
||||||
|
*
|
||||||
|
* This file is part of G10.
|
||||||
|
*
|
||||||
|
* G10 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.
|
||||||
|
*
|
||||||
|
* G10 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
|
||||||
|
*
|
||||||
|
* Note: This code is heavily based on the GNU MP Library.
|
||||||
|
* Actually it's the same code with only minor changes in the
|
||||||
|
* way the data is stored; this is to support the abstraction
|
||||||
|
* of an optional secure memory allocation which may be used
|
||||||
|
* to avoid revealing of sensitive data due to paging etc.
|
||||||
|
* The GNU MP Library itself is published under the LGPL;
|
||||||
|
* however I decided to publish this code under the plain GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
/*******************
|
||||||
|
* mpi_limb_t
|
||||||
|
* mpihelp_submul_1( mpi_ptr_t res_ptr, (r26)
|
||||||
|
* mpi_ptr_t s1_ptr, (r25)
|
||||||
|
* mpi_size_t s1_size, (r24)
|
||||||
|
* mpi_limb_t s2_limb) (r23)
|
||||||
|
*
|
||||||
|
*
|
||||||
|
* This runs at 12 cycles/limb on a PA7000. With the used instructions, it
|
||||||
|
* can not become faster due to data cache contention after a store. On the
|
||||||
|
* PA7100 it runs at 11 cycles/limb, and that can not be improved either,
|
||||||
|
* since only the xmpyu does not need the integer pipeline, so the only
|
||||||
|
* dual-issue we will get are addc+xmpyu. Unrolling could gain a cycle/limb
|
||||||
|
* on the PA7100.
|
||||||
|
*
|
||||||
|
* There are some ideas described in mul1.S that applies to this code too.
|
||||||
|
*
|
||||||
|
* It seems possible to make this run as fast as addmul_1, if we use
|
||||||
|
* sub,>>= %r29,%r19,%r22
|
||||||
|
* addi 1,%r28,%r28
|
||||||
|
* but that requires reworking the hairy software pipeline...
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
.code
|
||||||
|
.export mpihelp_submul_1
|
||||||
|
mpihelp_submul_1
|
||||||
|
.proc
|
||||||
|
.callinfo frame=64,no_calls
|
||||||
|
.entry
|
||||||
|
|
||||||
|
ldo 64(%r30),%r30
|
||||||
|
fldws,ma 4(%r25),%fr5
|
||||||
|
stw %r23,-16(%r30) ; move s2_limb ...
|
||||||
|
addib,= -1,%r24,L$just_one_limb
|
||||||
|
fldws -16(%r30),%fr4 ; ... into fr4
|
||||||
|
add %r0,%r0,%r0 ; clear carry
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
fldws,ma 4(%r25),%fr7
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
xmpyu %fr4,%fr7,%fr8
|
||||||
|
ldw -12(%r30),%r19 ; least significant limb in product
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
|
||||||
|
fstds %fr8,-16(%r30)
|
||||||
|
addib,= -1,%r24,L$end
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
|
||||||
|
; Main loop
|
||||||
|
L$loop ldws 0(%r26),%r29
|
||||||
|
fldws,ma 4(%r25),%fr5
|
||||||
|
sub %r29,%r19,%r22
|
||||||
|
add %r22,%r19,%r0
|
||||||
|
stws,ma %r22,4(%r26)
|
||||||
|
addc %r28,%r1,%r19
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
addib,<> -1,%r24,L$loop
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
|
||||||
|
L$end ldw 0(%r26),%r29
|
||||||
|
sub %r29,%r19,%r22
|
||||||
|
add %r22,%r19,%r0
|
||||||
|
stws,ma %r22,4(%r26)
|
||||||
|
addc %r28,%r1,%r19
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
ldws 0(%r26),%r29
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
sub %r29,%r19,%r22
|
||||||
|
add %r22,%r19,%r0
|
||||||
|
stws,ma %r22,4(%r26)
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
bv 0(%r2)
|
||||||
|
ldo -64(%r30),%r30
|
||||||
|
|
||||||
|
L$just_one_limb
|
||||||
|
xmpyu %fr4,%fr5,%fr6
|
||||||
|
ldw 0(%r26),%r29
|
||||||
|
fstds %fr6,-16(%r30)
|
||||||
|
ldw -12(%r30),%r1
|
||||||
|
ldw -16(%r30),%r28
|
||||||
|
sub %r29,%r1,%r22
|
||||||
|
add %r22,%r1,%r0
|
||||||
|
stw %r22,0(%r26)
|
||||||
|
addc %r0,%r28,%r28
|
||||||
|
bv 0(%r2)
|
||||||
|
ldo -64(%r30),%r30
|
||||||
|
|
||||||
|
.exit
|
||||||
|
.procend
|
||||||
|
|
||||||
88
mpi/hppa1.1/udiv-qrnnd.S
Normal file
88
mpi/hppa1.1/udiv-qrnnd.S
Normal file
@ -0,0 +1,88 @@
|
|||||||
|
/* HP-PA __udiv_qrnnd division support, used from longlong.h.
|
||||||
|
* This version runs fast on PA 7000 and later.
|
||||||
|
*
|
||||||
|
* Copyright (C) 1993, 1994 Free Software Foundation, Inc.
|
||||||
|
* Copyright (c) 1997 by Werner Koch (dd9jn)
|
||||||
|
*
|
||||||
|
* This file is part of G10.
|
||||||
|
*
|
||||||
|
* G10 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.
|
||||||
|
*
|
||||||
|
* G10 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
|
||||||
|
*
|
||||||
|
* Note: This code is heavily based on the GNU MP Library.
|
||||||
|
* Actually it's the same code with only minor changes in the
|
||||||
|
* way the data is stored; this is to support the abstraction
|
||||||
|
* of an optional secure memory allocation which may be used
|
||||||
|
* to avoid revealing of sensitive data due to paging etc.
|
||||||
|
* The GNU MP Library itself is published under the LGPL;
|
||||||
|
* however I decided to publish this code under the plain GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/* INPUT PARAMETERS
|
||||||
|
* rem_ptr gr26
|
||||||
|
* n1 gr25
|
||||||
|
* n0 gr24
|
||||||
|
* d gr23
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code
|
||||||
|
L$0000 .word 0x43f00000
|
||||||
|
.word 0x0
|
||||||
|
.export __udiv_qrnnd
|
||||||
|
__udiv_qrnnd
|
||||||
|
.proc
|
||||||
|
.callinfo frame=64,no_calls
|
||||||
|
.entry
|
||||||
|
ldo 64(%r30),%r30
|
||||||
|
|
||||||
|
stws %r25,-16(0,%r30) ; n_hi
|
||||||
|
stws %r24,-12(0,%r30) ; n_lo
|
||||||
|
ldil L'L$0000,%r19
|
||||||
|
ldo R'L$0000(%r19),%r19
|
||||||
|
fldds -16(0,%r30),%fr5
|
||||||
|
stws %r23,-12(0,%r30)
|
||||||
|
comib,<= 0,%r25,L$1
|
||||||
|
fcnvxf,dbl,dbl %fr5,%fr5
|
||||||
|
fldds 0(0,%r19),%fr4
|
||||||
|
fadd,dbl %fr4,%fr5,%fr5
|
||||||
|
L$1
|
||||||
|
fcpy,sgl %fr0,%fr6L
|
||||||
|
fldws -12(0,%r30),%fr6R
|
||||||
|
fcnvxf,dbl,dbl %fr6,%fr4
|
||||||
|
|
||||||
|
fdiv,dbl %fr5,%fr4,%fr5
|
||||||
|
|
||||||
|
fcnvfx,dbl,dbl %fr5,%fr4
|
||||||
|
fstws %fr4R,-16(%r30)
|
||||||
|
xmpyu %fr4R,%fr6R,%fr6
|
||||||
|
ldws -16(%r30),%r28
|
||||||
|
fstds %fr6,-16(0,%r30)
|
||||||
|
ldws -12(0,%r30),%r21
|
||||||
|
ldws -16(0,%r30),%r20
|
||||||
|
sub %r24,%r21,%r22
|
||||||
|
subb %r25,%r20,%r19
|
||||||
|
comib,= 0,%r19,L$2
|
||||||
|
ldo -64(%r30),%r30
|
||||||
|
|
||||||
|
add %r22,%r23,%r22
|
||||||
|
ldo -1(%r28),%r28
|
||||||
|
L$2 bv 0(%r2)
|
||||||
|
stws %r22,0(0,%r26)
|
||||||
|
|
||||||
|
.exit
|
||||||
|
.procend
|
||||||
|
|
||||||
|
|
||||||
2
mpi/pa7100/distfiles
Normal file
2
mpi/pa7100/distfiles
Normal file
@ -0,0 +1,2 @@
|
|||||||
|
mpih-shift.S
|
||||||
|
|
||||||
158
mpi/pa7100/mpih-shift.S
Normal file
158
mpi/pa7100/mpih-shift.S
Normal file
@ -0,0 +1,158 @@
|
|||||||
|
/* hppa rshift, lshift
|
||||||
|
* optimized for the PA7100, where is runs at 3.25 cycles/limb
|
||||||
|
* Copyright (C) 1992, 1994 Free Software Foundation, Inc.
|
||||||
|
* Copyright (c) 1997 by Werner Koch (dd9jn)
|
||||||
|
*
|
||||||
|
* This file is part of G10.
|
||||||
|
*
|
||||||
|
* G10 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.
|
||||||
|
*
|
||||||
|
* G10 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
|
||||||
|
*
|
||||||
|
* Note: This code is heavily based on the GNU MP Library.
|
||||||
|
* Actually it's the same code with only minor changes in the
|
||||||
|
* way the data is stored; this is to support the abstraction
|
||||||
|
* of an optional secure memory allocation which may be used
|
||||||
|
* to avoid revealing of sensitive data due to paging etc.
|
||||||
|
* The GNU MP Library itself is published under the LGPL;
|
||||||
|
* however I decided to publish this code under the plain GPL.
|
||||||
|
*/
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*******************
|
||||||
|
* 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
|
||||||
|
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
|
||||||
|
|
||||||
|
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
|
||||||
|
|
||||||
|
L$rest addib,= 4,%r24,L$end1
|
||||||
|
nop
|
||||||
|
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$eloop
|
||||||
|
vshd %r22,%r29,%r20
|
||||||
|
|
||||||
|
L$end1 stws,mb %r20,-4(0,%r26)
|
||||||
|
vshd %r29,%r0,%r20
|
||||||
|
bv 0(%r2)
|
||||||
|
stw %r20,-4(0,%r26)
|
||||||
|
L$end2 stws,mb %r20,-4(0,%r26)
|
||||||
|
L$0004 vshd %r22,%r0,%r20
|
||||||
|
bv 0(%r2)
|
||||||
|
stw %r20,-4(0,%r26)
|
||||||
|
|
||||||
|
.exit
|
||||||
|
.procend
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
/*******************
|
||||||
|
* mpi_limb_t
|
||||||
|
* mpihelp_rshift( mpi_ptr_t wp, (gr26)
|
||||||
|
* mpi_ptr_t up, (gr25)
|
||||||
|
* mpi_size_t usize, (gr24)
|
||||||
|
* unsigned cnt) (gr23)
|
||||||
|
*/
|
||||||
|
|
||||||
|
.code
|
||||||
|
.export mpihelp_rshift
|
||||||
|
mpihelp_rshift
|
||||||
|
.proc
|
||||||
|
.callinfo frame=64,no_calls
|
||||||
|
.entry
|
||||||
|
|
||||||
|
ldws,ma 4(0,%r25),%r22
|
||||||
|
mtsar %r23
|
||||||
|
addib,= -1,%r24,L$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
|
||||||
|
|
||||||
|
|
||||||
Loading…
x
Reference in New Issue
Block a user