1dnl SPARC v7 __udiv_qrnnd division support, used from longlong.h. 2dnl This is for v7 CPUs with a floating-point unit. 3 4dnl Copyright 1993, 1994, 1996, 2000 Free Software Foundation, Inc. 5 6dnl This file is part of the GNU MP Library. 7dnl 8dnl The GNU MP Library is free software; you can redistribute it and/or modify 9dnl it under the terms of either: 10dnl 11dnl * the GNU Lesser General Public License as published by the Free 12dnl Software Foundation; either version 3 of the License, or (at your 13dnl option) any later version. 14dnl 15dnl or 16dnl 17dnl * the GNU General Public License as published by the Free Software 18dnl Foundation; either version 2 of the License, or (at your option) any 19dnl later version. 20dnl 21dnl or both in parallel, as here. 22dnl 23dnl The GNU MP Library is distributed in the hope that it will be useful, but 24dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 25dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 26dnl for more details. 27dnl 28dnl You should have received copies of the GNU General Public License and the 29dnl GNU Lesser General Public License along with the GNU MP Library. If not, 30dnl see https://www.gnu.org/licenses/. 31 32 33include(`../config.m4') 34 35C INPUT PARAMETERS 36C rem_ptr i0 37C n1 i1 38C n0 i2 39C d i3 40 41ASM_START() 42 43ifdef(`PIC', 44` TEXT 45L(getpc): 46 retl 47 nop') 48 49 TEXT 50 ALIGN(8) 51L(C0): .double 0r4294967296 52L(C1): .double 0r2147483648 53 54PROLOGUE(mpn_udiv_qrnnd) 55 save %sp,-104,%sp 56 st %i1,[%fp-8] 57 ld [%fp-8],%f10 58 59ifdef(`PIC', 60`L(pc): call L(getpc) C put address of this insn in %o7 61 ldd [%o7+L(C0)-L(pc)],%f8', 62` sethi %hi(L(C0)),%o7 63 ldd [%o7+%lo(L(C0))],%f8') 64 65 fitod %f10,%f4 66 cmp %i1,0 67 bge L(248) 68 mov %i0,%i5 69 faddd %f4,%f8,%f4 70L(248): 71 st %i2,[%fp-8] 72 ld [%fp-8],%f10 73 fmuld %f4,%f8,%f6 74 cmp %i2,0 75 bge L(249) 76 fitod %f10,%f2 77 faddd %f2,%f8,%f2 78L(249): 79 st %i3,[%fp-8] 80 faddd %f6,%f2,%f2 81 ld [%fp-8],%f10 82 cmp %i3,0 83 bge L(250) 84 fitod %f10,%f4 85 faddd %f4,%f8,%f4 86L(250): 87 fdivd %f2,%f4,%f2 88 89ifdef(`PIC', 90` ldd [%o7+L(C1)-L(pc)],%f4', 91` sethi %hi(L(C1)),%o7 92 ldd [%o7+%lo(L(C1))],%f4') 93 94 fcmped %f2,%f4 95 nop 96 fbge,a L(251) 97 fsubd %f2,%f4,%f2 98 fdtoi %f2,%f2 99 st %f2,[%fp-8] 100 b L(252) 101 ld [%fp-8],%i4 102L(251): 103 fdtoi %f2,%f2 104 st %f2,[%fp-8] 105 ld [%fp-8],%i4 106 sethi %hi(-2147483648),%g2 107 xor %i4,%g2,%i4 108L(252): 109 wr %g0,%i4,%y 110 sra %i3,31,%g2 111 and %i4,%g2,%g2 112 andcc %g0,0,%g1 113 mulscc %g1,%i3,%g1 114 mulscc %g1,%i3,%g1 115 mulscc %g1,%i3,%g1 116 mulscc %g1,%i3,%g1 117 mulscc %g1,%i3,%g1 118 mulscc %g1,%i3,%g1 119 mulscc %g1,%i3,%g1 120 mulscc %g1,%i3,%g1 121 mulscc %g1,%i3,%g1 122 mulscc %g1,%i3,%g1 123 mulscc %g1,%i3,%g1 124 mulscc %g1,%i3,%g1 125 mulscc %g1,%i3,%g1 126 mulscc %g1,%i3,%g1 127 mulscc %g1,%i3,%g1 128 mulscc %g1,%i3,%g1 129 mulscc %g1,%i3,%g1 130 mulscc %g1,%i3,%g1 131 mulscc %g1,%i3,%g1 132 mulscc %g1,%i3,%g1 133 mulscc %g1,%i3,%g1 134 mulscc %g1,%i3,%g1 135 mulscc %g1,%i3,%g1 136 mulscc %g1,%i3,%g1 137 mulscc %g1,%i3,%g1 138 mulscc %g1,%i3,%g1 139 mulscc %g1,%i3,%g1 140 mulscc %g1,%i3,%g1 141 mulscc %g1,%i3,%g1 142 mulscc %g1,%i3,%g1 143 mulscc %g1,%i3,%g1 144 mulscc %g1,%i3,%g1 145 mulscc %g1,0,%g1 146 add %g1,%g2,%i0 147 rd %y,%g3 148 subcc %i2,%g3,%o7 149 subxcc %i1,%i0,%g0 150 be L(253) 151 cmp %o7,%i3 152 153 add %i4,-1,%i0 154 add %o7,%i3,%o7 155 st %o7,[%i5] 156 ret 157 restore 158L(253): 159 blu L(246) 160 mov %i4,%i0 161 add %i4,1,%i0 162 sub %o7,%i3,%o7 163L(246): 164 st %o7,[%i5] 165 ret 166 restore 167EPILOGUE(mpn_udiv_qrnnd) 168