1 dnl SPARC v8 mpn_mul_1 -- Multiply a limb vector with a single limb and 2 dnl store the product in a second limb vector. 3 4 dnl Copyright 1992, 1994, 1995, 2000 Free Software Foundation, Inc. 5 6 dnl This file is part of the GNU MP Library. 7 dnl 8 dnl The GNU MP Library is free software; you can redistribute it and/or modify 9 dnl it under the terms of either: 10 dnl 11 dnl * the GNU Lesser General Public License as published by the Free 12 dnl Software Foundation; either version 3 of the License, or (at your 13 dnl option) any later version. 14 dnl 15 dnl or 16 dnl 17 dnl * the GNU General Public License as published by the Free Software 18 dnl Foundation; either version 2 of the License, or (at your option) any 19 dnl later version. 20 dnl 21 dnl or both in parallel, as here. 22 dnl 23 dnl The GNU MP Library is distributed in the hope that it will be useful, but 24 dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 25 dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 26 dnl for more details. 27 dnl 28 dnl You should have received copies of the GNU General Public License and the 29 dnl GNU Lesser General Public License along with the GNU MP Library. If not, 30 dnl see https://www.gnu.org/licenses/. 31 32 33 include(`../config.m4') 34 35 C INPUT PARAMETERS 36 C res_ptr o0 37 C s1_ptr o1 38 C size o2 39 C s2_limb o3 40 41 ASM_START() 42 PROLOGUE(mpn_mul_1) 43 sll %o2,4,%g1 44 and %g1,(4-1)<<4,%g1 45 ifdef(`PIC', 46 ` mov %o7,%g4 C Save return address register 47 0: call 1f 48 add %o7,L(1)-0b,%g3 49 1: mov %g4,%o7 C Restore return address register 50 ', 51 ` sethi %hi(L(1)),%g3 52 or %g3,%lo(L(1)),%g3 53 ') 54 jmp %g3+%g1 55 ld [%o1+0],%o4 C 1 56 L(1): 57 L(L00): add %o0,-4,%o0 58 add %o1,-4,%o1 59 b L(loop00) C 4, 8, 12, ... 60 orcc %g0,%g0,%g2 61 L(L01): b L(loop01) C 1, 5, 9, ... 62 orcc %g0,%g0,%g2 63 nop 64 nop 65 L(L10): add %o0,-12,%o0 C 2, 6, 10, ... 66 add %o1,4,%o1 67 b L(loop10) 68 orcc %g0,%g0,%g2 69 nop 70 L(L11): add %o0,-8,%o0 C 3, 7, 11, ... 71 add %o1,-8,%o1 72 b L(loop11) 73 orcc %g0,%g0,%g2 74 75 L(loop): 76 addcc %g3,%g2,%g3 C 1 77 ld [%o1+4],%o4 C 2 78 st %g3,[%o0+0] C 1 79 rd %y,%g2 C 1 80 L(loop00): 81 umul %o4,%o3,%g3 C 2 82 addxcc %g3,%g2,%g3 C 2 83 ld [%o1+8],%o4 C 3 84 st %g3,[%o0+4] C 2 85 rd %y,%g2 C 2 86 L(loop11): 87 umul %o4,%o3,%g3 C 3 88 addxcc %g3,%g2,%g3 C 3 89 ld [%o1+12],%o4 C 4 90 add %o1,16,%o1 91 st %g3,[%o0+8] C 3 92 rd %y,%g2 C 3 93 L(loop10): 94 umul %o4,%o3,%g3 C 4 95 addxcc %g3,%g2,%g3 C 4 96 ld [%o1+0],%o4 C 1 97 st %g3,[%o0+12] C 4 98 add %o0,16,%o0 99 rd %y,%g2 C 4 100 addx %g0,%g2,%g2 101 L(loop01): 102 addcc %o2,-4,%o2 103 bg L(loop) 104 umul %o4,%o3,%g3 C 1 105 106 addcc %g3,%g2,%g3 C 4 107 st %g3,[%o0+0] C 4 108 rd %y,%g2 C 4 109 110 retl 111 addx %g0,%g2,%o0 112 EPILOGUE(mpn_mul_1) 113
Indexes created Sat Feb 28 05:31:39 UTC 2026