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dnl HP-PA 32-bit mpn_sqr_diagonal optimized for the PA8x00.
dnl Copyright 2001, 2002 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of either:
dnl
dnl * the GNU Lesser General Public License as published by the Free
dnl Software Foundation; either version 3 of the License, or (at your
dnl option) any later version.
dnl
dnl or
dnl
dnl * the GNU General Public License as published by the Free Software
dnl Foundation; either version 2 of the License, or (at your option) any
dnl later version.
dnl
dnl or both in parallel, as here.
dnl
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 General Public License
dnl for more details.
dnl
dnl You should have received copies of the GNU General Public License and the
dnl GNU Lesser General Public License along with the GNU MP Library. If not,
dnl see https://www.gnu.org/licenses/.
include(`../config.m4')
C This code runs at 6 cycles/limb on the PA7100 and 2 cycles/limb on PA8x00.
C The 2-way unrolling is actually not helping the PA7100.
C INPUT PARAMETERS
define(`rp',`%r26')
define(`up',`%r25')
define(`n',`%r24')
ASM_START()
PROLOGUE(mpn_sqr_diagonal)
fldws,ma 4(up),%fr4r
addib,= -1,n,L(end1)
ldo 4(rp),rp
fldws,ma 4(up),%fr6r
addib,= -1,n,L(end2)
xmpyu %fr4r,%fr4r,%fr5
fldws,ma 4(up),%fr4r
addib,= -1,n,L(end3)
xmpyu %fr6r,%fr6r,%fr7
LDEF(loop)
fldws,ma 4(up),%fr6r
fstws %fr5r,-4(rp)
fstws,ma %fr5l,8(rp)
addib,= -1,n,L(exite)
xmpyu %fr4r,%fr4r,%fr5
fldws,ma 4(up),%fr4r
fstws %fr7r,-4(rp)
fstws,ma %fr7l,8(rp)
addib,<> -1,n,L(loop)
xmpyu %fr6r,%fr6r,%fr7
LDEF(exito)
fstws %fr5r,-4(rp)
fstws %fr5l,0(rp)
xmpyu %fr4r,%fr4r,%fr5
fstws %fr7r,4(rp)
fstws %fr7l,8(rp)
fstws,mb %fr5r,12(rp)
bv 0(%r2)
fstws %fr5l,4(rp)
LDEF(exite)
fstws %fr7r,-4(rp)
fstws %fr7l,0(rp)
xmpyu %fr6r,%fr6r,%fr7
fstws %fr5r,4(rp)
fstws %fr5l,8(rp)
fstws,mb %fr7r,12(rp)
bv 0(%r2)
fstws %fr7l,4(rp)
LDEF(end1)
xmpyu %fr4r,%fr4r,%fr5
fstws %fr5r,-4(rp)
bv 0(%r2)
fstws,ma %fr5l,8(rp)
LDEF(end2)
xmpyu %fr6r,%fr6r,%fr7
fstws %fr5r,-4(rp)
fstws %fr5l,0(rp)
fstws %fr7r,4(rp)
bv 0(%r2)
fstws %fr7l,8(rp)
LDEF(end3)
fstws %fr5r,-4(rp)
fstws %fr5l,0(rp)
xmpyu %fr4r,%fr4r,%fr5
fstws %fr7r,4(rp)
fstws %fr7l,8(rp)
fstws,mb %fr5r,12(rp)
bv 0(%r2)
fstws %fr5l,4(rp)
EPILOGUE(mpn_sqr_diagonal)
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