1dnl S/390-64 mpn_mod_34lsub1 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 5.8 35C z990 2 36C z9 ? 37C z10 4.5 38C z196 ? 39 40C TODO 41C * Optimise summation code, see x86_64. 42 43C INPUT PARAMETERS 44define(`rp', `%r2') 45define(`n', `%r3') 46 47ASM_START() 48PROLOGUE(mpn_mod_34lsub1) 49 stmg %r7, %r12, 56(%r15) 50 lghi %r11, 0 51 lghi %r12, 0 52 lghi %r0, 0 53 lghi %r8, 0 54 lghi %r9, 0 55 lghi %r10, 0 56 lghi %r7, 0 57 aghi %r3, -3 58 jl .L3 59 60L(top): alg %r0, 0(%r2) 61 alcg %r12, 8(%r2) 62 alcg %r11, 16(%r2) 63 alcgr %r8, %r7 64 la %r2, 24(%r2) 65 aghi %r3, -3 66 jnl L(top) 67 68 lgr %r7, %r8 69 srlg %r1, %r11, 16 70 nihh %r7, 0 C 0xffffffffffff 71 agr %r7, %r1 72 srlg %r8, %r8, 48 73 agr %r7, %r8 74 sllg %r11, %r11, 32 75 nihh %r11, 0 76 agr %r7, %r11 77.L3: 78 cghi %r3, -3 79 je .L6 80 alg %r0, 0(%r2) 81 alcgr %r10, %r10 82 cghi %r3, -2 83 je .L6 84 alg %r12, 8(%r2) 85 alcgr %r9, %r9 86.L6: 87 srlg %r1, %r0, 48 88 nihh %r0, 0 C 0xffffffffffff 89 agr %r0, %r1 90 agr %r0, %r7 91 srlg %r1, %r12, 32 92 agr %r0, %r1 93 srlg %r1, %r10, 32 94 agr %r0, %r1 95 llgfr %r12, %r12 96 srlg %r1, %r9, 16 97 sllg %r12, %r12, 16 98 llgfr %r10, %r10 99 agr %r0, %r1 100 llill %r2, 65535 101 agr %r0, %r12 102 sllg %r10, %r10, 16 103 ngr %r2, %r9 104 agr %r0, %r10 105 sllg %r2, %r2, 32 106 agr %r2, %r0 107 lmg %r7, %r12, 56(%r15) 108 br %r14 109EPILOGUE() 110