1 dnl SPARC v9 mpn_mul_1 for T3/T4/T5. 2 3 dnl Contributed to the GNU project by David Miller and Torbjrn Granlund. 4 5 dnl Copyright 2013 Free Software Foundation, Inc. 6 7 dnl This file is part of the GNU MP Library. 8 dnl 9 dnl The GNU MP Library is free software; you can redistribute it and/or modify 10 dnl it under the terms of either: 11 dnl 12 dnl * the GNU Lesser General Public License as published by the Free 13 dnl Software Foundation; either version 3 of the License, or (at your 14 dnl option) any later version. 15 dnl 16 dnl or 17 dnl 18 dnl * the GNU General Public License as published by the Free Software 19 dnl Foundation; either version 2 of the License, or (at your option) any 20 dnl later version. 21 dnl 22 dnl or both in parallel, as here. 23 dnl 24 dnl The GNU MP Library is distributed in the hope that it will be useful, but 25 dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 26 dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 27 dnl for more details. 28 dnl 29 dnl You should have received copies of the GNU General Public License and the 30 dnl GNU Lesser General Public License along with the GNU MP Library. If not, 31 dnl see https://www.gnu.org/licenses/. 32 33 include(`../config.m4') 34 35 C cycles/limb 36 C UltraSPARC T3: 23 37 C UltraSPARC T4: 3 38 39 C INPUT PARAMETERS 40 define(`rp', `%i0') 41 define(`up', `%i1') 42 define(`n', `%i2') 43 define(`v0', `%i3') 44 45 ASM_START() 46 REGISTER(%g2,#scratch) 47 REGISTER(%g3,#scratch) 48 PROLOGUE(mpn_mul_1) 49 save %sp, -176, %sp 50 51 and n, 3, %g5 52 add n, -4, n 53 brz %g5, L(b0) 54 cmp %g5, 2 55 bcs %xcc, L(b1) 56 nop 57 be %xcc, L(b2) 58 nop 59 60 L(b3): addcc %g0, %g0, %i5 61 ldx [up+0], %l0 62 ldx [up+8], %l1 63 ldx [up+16], %l2 64 mulx %l0, v0, %o0 65 umulxhi(%l0, v0, %o1) 66 brgz n, L(gt3) 67 add rp, -8, rp 68 mulx %l1, v0, %o2 69 umulxhi(%l1, v0, %o3) 70 b L(wd3) 71 nop 72 L(gt3): ldx [up+24], %l3 73 mulx %l1, v0, %o2 74 umulxhi(%l1, v0, %o3) 75 add up, 24, up 76 b L(lo3) 77 add n, -3, n 78 79 L(b2): addcc %g0, %g0, %o1 80 ldx [up+0], %l1 81 ldx [up+8], %l2 82 brgz n, L(gt2) 83 add rp, -16, rp 84 mulx %l1, v0, %o2 85 umulxhi(%l1, v0, %o3) 86 mulx %l2, v0, %o4 87 umulxhi(%l2, v0, %o5) 88 b L(wd2) 89 nop 90 L(gt2): ldx [up+16], %l3 91 mulx %l1, v0, %o2 92 umulxhi(%l1, v0, %o3) 93 ldx [up+24], %l0 94 mulx %l2, v0, %o4 95 umulxhi(%l2, v0, %o5) 96 add up, 16, up 97 b L(lo2) 98 add n, -2, n 99 100 L(b1): addcc %g0, %g0, %o3 101 ldx [up+0], %l2 102 brgz n, L(gt1) 103 nop 104 mulx %l2, v0, %o4 105 stx %o4, [rp+0] 106 umulxhi(%l2, v0, %i0) 107 ret 108 restore 109 L(gt1): ldx [up+8], %l3 110 ldx [up+16], %l0 111 mulx %l2, v0, %o4 112 umulxhi(%l2, v0, %o5) 113 ldx [up+24], %l1 114 mulx %l3, v0, %i4 115 umulxhi(%l3, v0, %i5) 116 add rp, -24, rp 117 add up, 8, up 118 b L(lo1) 119 add n, -1, n 120 121 L(b0): addcc %g0, %g0, %o5 122 ldx [up+0], %l3 123 ldx [up+8], %l0 124 ldx [up+16], %l1 125 mulx %l3, v0, %i4 126 umulxhi(%l3, v0, %i5) 127 ldx [up+24], %l2 128 mulx %l0, v0, %o0 129 umulxhi(%l0, v0, %o1) 130 b L(lo0) 131 nop 132 133 ALIGN(16) 134 L(top): ldx [up+0], %l3 C 0 135 addxccc(%i4, %o5, %i4) C 0 136 mulx %l1, v0, %o2 C 1 137 stx %i4, [rp+0] C 1 138 umulxhi(%l1, v0, %o3) C 2 139 L(lo3): ldx [up+8], %l0 C 2 140 addxccc(%o0, %i5, %o0) C 3 141 mulx %l2, v0, %o4 C 3 142 stx %o0, [rp+8] C 4 143 umulxhi(%l2, v0, %o5) C 4 144 L(lo2): ldx [up+16], %l1 C 5 145 addxccc(%o2, %o1, %o2) C 5 146 mulx %l3, v0, %i4 C 6 147 stx %o2, [rp+16] C 6 148 umulxhi(%l3, v0, %i5) C 7 149 L(lo1): ldx [up+24], %l2 C 7 150 addxccc(%o4, %o3, %o4) C 8 151 mulx %l0, v0, %o0 C 8 152 stx %o4, [rp+24] C 9 153 umulxhi(%l0, v0, %o1) C 9 154 add rp, 32, rp C 10 155 L(lo0): add up, 32, up C 10 156 brgz n, L(top) C 11 157 add n, -4, n C 11 158 159 L(end): addxccc(%i4, %o5, %i4) 160 mulx %l1, v0, %o2 161 stx %i4, [rp+0] 162 umulxhi(%l1, v0, %o3) 163 addxccc(%o0, %i5, %o0) 164 L(wd3): mulx %l2, v0, %o4 165 stx %o0, [rp+8] 166 umulxhi(%l2, v0, %o5) 167 addxccc(%o2, %o1, %o2) 168 L(wd2): stx %o2, [rp+16] 169 addxccc(%o4, %o3, %o4) 170 stx %o4, [rp+24] 171 addxc( %g0, %o5, %i0) 172 ret 173 restore 174 EPILOGUE() 175
Indexes created Sat Feb 28 05:31:39 UTC 2026