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dnl S/390-32 mpn_addmul_1 for systems with MLR instruction
dnl Copyright 2011 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 cycles/limb
C z900 18.5
C z990 10
C z9 ?
C z10 ?
C z196 ?
C INPUT PARAMETERS
define(`rp', `%r2')
define(`up', `%r3')
define(`n', `%r4')
define(`v0', `%r5')
define(`z', `%r9')
ASM_START()
PROLOGUE(mpn_addmul_1)
stm %r9, %r12, 36(%r15)
lhi %r12, 0 C zero index register
ahi %r12, 0 C clear carry fla
lhi %r11, 0 C clear carry limb
lhi z, 0 C clear carry limb
L(top): l %r1, 0(%r12,up)
l %r10, 0(%r12,rp)
mlr %r0, v0
alcr %r1, %r10
alcr %r0, z
alr %r1, %r11
lr %r11, %r0
st %r1, 0(%r12,rp)
la %r12, 4(%r12)
brct n, L(top)
lhi %r2, 0
alcr %r2, %r11
lm %r9, %r12, 36(%r15)
br %r14
EPILOGUE()
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