mpir/mpn/pyr/mul_1.s

43 lines
1.2 KiB
ArmAsm

# Pyramid __gmpn_mul_1 -- Multiply a limb vector with a limb and store
# the result in a second limb vector.
# Copyright 1995, 2000 Free Software Foundation, Inc.
# This file is part of the GNU MP Library.
# The GNU MP Library is free software; you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as published by
# the Free Software Foundation; either version 2.1 of the License, or (at your
# option) any later version.
# The GNU MP Library 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 Lesser General Public
# License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with the GNU MP Library; see the file COPYING.LIB. If not, write to
# the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
# MA 02110-1301, USA.
.text
.align 2
.globl ___gmpn_mul_1
___gmpn_mul_1:
mova (pr0)[pr2*4],pr0
mova (pr1)[pr2*4],pr1
mnegw pr2,pr2
movw $0,tr3
Loop: movw (pr1)[pr2*4],tr1
uemul pr3,tr0
addw tr3,tr1
movw $0,tr3
addwc tr0,tr3
movw tr1,(pr0)[pr2*4]
addw $1,pr2
bne Loop
movw tr3,pr0
ret