76 lines
2.0 KiB
NASM
76 lines
2.0 KiB
NASM
dnl HP-PA mpn_add_n -- Add two limb vectors of the same length > 0 and store
|
|
dnl sum in a third limb vector. Optimized for the PA7100, where is runs at
|
|
dnl 4.25 cycles/limb.
|
|
|
|
dnl Copyright 1992, 1994, 2000, 2001, 2002, 2003 Free Software Foundation,
|
|
dnl 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
|
|
dnl to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
|
dnl Boston, MA 02110-1301, 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_add_n)
|
|
ldws,ma 4(0,%r25),%r20
|
|
ldws,ma 4(0,%r24),%r19
|
|
|
|
addib,<= -5,%r23,L(rest)
|
|
add %r20,%r19,%r28 C add first limbs ignoring cy
|
|
|
|
LDEF(loop)
|
|
ldws,ma 4(0,%r25),%r20
|
|
ldws,ma 4(0,%r24),%r19
|
|
stws,ma %r28,4(0,%r26)
|
|
addc %r20,%r19,%r28
|
|
ldws,ma 4(0,%r25),%r20
|
|
ldws,ma 4(0,%r24),%r19
|
|
stws,ma %r28,4(0,%r26)
|
|
addc %r20,%r19,%r28
|
|
ldws,ma 4(0,%r25),%r20
|
|
ldws,ma 4(0,%r24),%r19
|
|
stws,ma %r28,4(0,%r26)
|
|
addc %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)
|
|
addc %r20,%r19,%r28
|
|
|
|
LDEF(rest)
|
|
addib,= 4,%r23,L(end)
|
|
nop
|
|
|
|
LDEF(eloop)
|
|
ldws,ma 4(0,%r25),%r20
|
|
ldws,ma 4(0,%r24),%r19
|
|
stws,ma %r28,4(0,%r26)
|
|
addib,> -1,%r23,L(eloop)
|
|
addc %r20,%r19,%r28
|
|
|
|
LDEF(end)
|
|
stws %r28,0(0,%r26)
|
|
bv 0(%r2)
|
|
addc %r0,%r0,%r28
|
|
EPILOGUE()
|