File: [local] / OpenXM_contrib / gmp / mpn / pa32 / hppa1_1 / pa7100 / Attic / sub_n.asm (download)
Revision 1.1.1.1 (vendor branch), Mon Aug 25 16:06:23 2003 UTC (21 years ago) by ohara
Branch: GMP
CVS Tags: VERSION_4_1_2, RELEASE_1_2_3, RELEASE_1_2_2_KNOPPIX_b, RELEASE_1_2_2_KNOPPIX Changes since 1.1: +0 -0
lines
Import gmp 4.1.2
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dnl HP-PA mpn_sub_n -- Subtract two limb vectors of the same length > 0 and
dnl store difference in a third limb vector. Optimized for the PA7100, where
dnl is runs at 4.25 cycles/limb.
dnl Copyright 1992, 1994, 2000, 2001, 2002 Free Software Foundation, Inc.
dnl This file is part of the GNU MP Library.
dnl The GNU MP Library is free software; you can redistribute it and/or modify
dnl it under the terms of the GNU Lesser General Public License as published
dnl by the Free Software Foundation; either version 2.1 of the License, or (at
dnl your option) any later version.
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 Lesser General Public
dnl License for more details.
dnl You should have received a copy of the GNU Lesser General Public License
dnl along with the GNU MP Library; see the file COPYING.LIB. If not, write to
dnl the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
dnl MA 02111-1307, USA.
include(`../config.m4')
C INPUT PARAMETERS
C res_ptr r26
C s1_ptr r25
C s2_ptr r24
C size r23
ASM_START()
PROLOGUE(mpn_sub_n)
ldws,ma 4(0,%r25),%r20
ldws,ma 4(0,%r24),%r19
addib,<= -5,%r23,L(rest)
sub %r20,%r19,%r28 C subtract first limbs ignoring cy
.label L(loop)
ldws,ma 4(0,%r25),%r20
ldws,ma 4(0,%r24),%r19
stws,ma %r28,4(0,%r26)
subb %r20,%r19,%r28
ldws,ma 4(0,%r25),%r20
ldws,ma 4(0,%r24),%r19
stws,ma %r28,4(0,%r26)
subb %r20,%r19,%r28
ldws,ma 4(0,%r25),%r20
ldws,ma 4(0,%r24),%r19
stws,ma %r28,4(0,%r26)
subb %r20,%r19,%r28
ldws,ma 4(0,%r25),%r20
ldws,ma 4(0,%r24),%r19
stws,ma %r28,4(0,%r26)
addib,> -4,%r23,L(loop)
subb %r20,%r19,%r28
.label L(rest)
addib,= 4,%r23,L(end)
nop
.label L(eloop)
ldws,ma 4(0,%r25),%r20
ldws,ma 4(0,%r24),%r19
stws,ma %r28,4(0,%r26)
addib,> -1,%r23,L(eloop)
subb %r20,%r19,%r28
.label L(end)
stws %r28,0(0,%r26)
addc %r0,%r0,%r28
bv 0(%r2)
subi 1,%r28,%r28
EPILOGUE()