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