1dnl S/390-32 mpn_mul_1 for systems with MLR instruction 2 3dnl Copyright 2011 Free Software Foundation, Inc. 4 5dnl This file is part of the GNU MP Library. 6dnl 7dnl The GNU MP Library is free software; you can redistribute it and/or modify 8dnl it under the terms of either: 9dnl 10dnl * the GNU Lesser General Public License as published by the Free 11dnl Software Foundation; either version 3 of the License, or (at your 12dnl option) any later version. 13dnl 14dnl or 15dnl 16dnl * the GNU General Public License as published by the Free Software 17dnl Foundation; either version 2 of the License, or (at your option) any 18dnl later version. 19dnl 20dnl or both in parallel, as here. 21dnl 22dnl The GNU MP Library is distributed in the hope that it will be useful, but 23dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 24dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 25dnl for more details. 26dnl 27dnl You should have received copies of the GNU General Public License and the 28dnl GNU Lesser General Public License along with the GNU MP Library. If not, 29dnl see https://www.gnu.org/licenses/. 30 31include(`../config.m4') 32 33C cycles/limb 34C z900 14 35C z990 9 36C z9 ? 37C z10 ? 38C z196 ? 39 40C INPUT PARAMETERS 41define(`rp', `%r2') 42define(`up', `%r3') 43define(`n', `%r4') 44define(`v0', `%r5') 45 46ASM_START() 47PROLOGUE(mpn_mul_1) 48 stm %r11, %r12, 44(%r15) 49 lhi %r12, 0 C zero index register 50 ahi %r12, 0 C clear carry flag 51 lhi %r11, 0 C clear carry limb 52 53L(top): l %r1, 0(%r12,up) 54 mlr %r0, v0 55 alcr %r1, %r11 56 lr %r11, %r0 C copy high part to carry limb 57 st %r1, 0(%r12,rp) 58 la %r12, 4(%r12) 59 brct n, L(top) 60 61 lhi %r2, 0 62 alcr %r2, %r11 63 64 lm %r11, %r12, 44(%r15) 65 br %r14 66EPILOGUE() 67