1 dnl S/390-32 mpn_lshiftc. 2 3 dnl Copyright 2011 Free Software Foundation, Inc. 4 5 dnl This file is part of the GNU MP Library. 6 dnl 7 dnl The GNU MP Library is free software; you can redistribute it and/or modify 8 dnl it under the terms of either: 9 dnl 10 dnl * the GNU Lesser General Public License as published by the Free 11 dnl Software Foundation; either version 3 of the License, or (at your 12 dnl option) any later version. 13 dnl 14 dnl or 15 dnl 16 dnl * the GNU General Public License as published by the Free Software 17 dnl Foundation; either version 2 of the License, or (at your option) any 18 dnl later version. 19 dnl 20 dnl or both in parallel, as here. 21 dnl 22 dnl The GNU MP Library is distributed in the hope that it will be useful, but 23 dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 24 dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 25 dnl for more details. 26 dnl 27 dnl You should have received copies of the GNU General Public License and the 28 dnl GNU Lesser General Public License along with the GNU MP Library. If not, 29 dnl see https://www.gnu.org/licenses/. 30 31 include(`../config.m4') 32 33 C cycles/limb 34 C z900 7 35 C z990 3.375 36 C z9 ? 37 C z10 ? 38 C z196 ? 39 40 C TODO 41 C * 42 43 C INPUT PARAMETERS 44 define(`rp', `%r2') 45 define(`up', `%r3') 46 define(`n', `%r4') 47 define(`cnt', `%r5') 48 49 ASM_START() 50 PROLOGUE(mpn_lshiftc) 51 lr %r1, n 52 sll %r1, 2 53 stm %r6, %r13, 24(%r15) 54 la up, 0(%r1,up) C put up near end of U 55 la rp, 0(%r1,rp) C put rp near end of R 56 ahi up, -20 57 ahi rp, -16 58 lhi %r8, 32 59 sr %r8, cnt 60 l %r12, 16(up) 61 srl %r12, 0(%r8) C return value 62 lhi %r13, -1 63 lhi %r7, 3 64 nr %r7, n 65 srl n, 2 66 je L(b0) 67 chi %r7, 2 68 jl L(b1) 69 je L(b2) 70 71 L(b3): l %r10, 16(up) 72 l %r11, 12(up) 73 l %r9, 8(up) 74 ahi up, -8 75 lr %r8, %r11 76 sldl %r10, 0(cnt) 77 sldl %r8, 0(cnt) 78 xr %r10, %r13 79 xr %r8, %r13 80 st %r10, 12(rp) 81 st %r8, 8(rp) 82 ahi rp, -8 83 ltr n, n 84 je L(end) 85 j L(top) 86 87 L(b2): l %r10, 16(up) 88 l %r11, 12(up) 89 ahi up, -4 90 sldl %r10, 0(cnt) 91 xr %r10, %r13 92 st %r10, 12(rp) 93 ahi rp, -4 94 ltr n, n 95 je L(end) 96 j L(top) 97 98 L(b1): ltr n, n 99 je L(end) 100 j L(top) 101 102 L(b0): l %r10,16(up) 103 l %r8, 12(up) 104 l %r6, 8(up) 105 l %r0, 4(up) 106 ahi up, -12 107 lr %r11, %r8 108 lr %r9, %r6 109 lr %r7, %r0 110 sldl %r10,0(cnt) 111 sldl %r8, 0(cnt) 112 sldl %r6, 0(cnt) 113 xr %r10, %r13 114 xr %r8, %r13 115 xr %r6, %r13 116 st %r10, 12(rp) 117 st %r8, 8(rp) 118 st %r6, 4(rp) 119 ahi rp, -12 120 ahi n, -1 121 je L(end) 122 123 ALIGN(8) 124 L(top): l %r10, 16(up) 125 l %r8, 12(up) 126 l %r6, 8(up) 127 l %r0, 4(up) 128 l %r1, 0(up) 129 lr %r11, %r8 130 lr %r9, %r6 131 lr %r7, %r0 132 ahi up, -16 133 sldl %r10, 0(cnt) 134 sldl %r8, 0(cnt) 135 sldl %r6, 0(cnt) 136 sldl %r0, 0(cnt) 137 xr %r10, %r13 138 xr %r8, %r13 139 xr %r6, %r13 140 xr %r0, %r13 141 st %r10, 12(rp) 142 st %r8, 8(rp) 143 st %r6, 4(rp) 144 st %r0, 0(rp) 145 ahi rp, -16 146 brct n, L(top) 147 148 L(end): l %r10, 16(up) 149 sll %r10, 0(cnt) 150 xr %r10, %r13 151 st %r10, 12(rp) 152 153 lr %r2, %r12 154 lm %r6, %r13, 24(%r15) 155 br %r14 156 EPILOGUE() 157
Indexes created Sat Feb 28 05:31:39 UTC 2026