| dnl SPARC v7 __udiv_qrnnd division support, used from longlong.h. |
| dnl This is for v7 CPUs with a floating-point unit. |
| |
| dnl Copyright 1993, 1994, 1996, 2000 Free Software Foundation, Inc. |
| |
| dnl This file is part of the GNU MP Library. |
| dnl |
| dnl The GNU MP Library is free software; you can redistribute it and/or modify |
| dnl it under the terms of either: |
| dnl |
| dnl * the GNU Lesser General Public License as published by the Free |
| dnl Software Foundation; either version 3 of the License, or (at your |
| dnl option) any later version. |
| dnl |
| dnl or |
| dnl |
| dnl * the GNU General Public License as published by the Free Software |
| dnl Foundation; either version 2 of the License, or (at your option) any |
| dnl later version. |
| dnl |
| dnl or both in parallel, as here. |
| dnl |
| dnl The GNU MP Library is distributed in the hope that it will be useful, but |
| dnl WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY |
| dnl or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| dnl for more details. |
| dnl |
| dnl You should have received copies of the GNU General Public License and the |
| dnl GNU Lesser General Public License along with the GNU MP Library. If not, |
| dnl see https://www.gnu.org/licenses/. |
| |
| |
| include(`../config.m4') |
| |
| C INPUT PARAMETERS |
| C rem_ptr i0 |
| C n1 i1 |
| C n0 i2 |
| C d i3 |
| |
| ASM_START() |
| |
| ifdef(`PIC', |
| ` TEXT |
| L(getpc): |
| retl |
| nop') |
| |
| TEXT |
| ALIGN(8) |
| L(C0): .double 0r4294967296 |
| L(C1): .double 0r2147483648 |
| |
| PROLOGUE(mpn_udiv_qrnnd) |
| save %sp,-104,%sp |
| st %i1,[%fp-8] |
| ld [%fp-8],%f10 |
| |
| ifdef(`PIC', |
| `L(pc): call L(getpc) C put address of this insn in %o7 |
| ldd [%o7+L(C0)-L(pc)],%f8', |
| ` sethi %hi(L(C0)),%o7 |
| ldd [%o7+%lo(L(C0))],%f8') |
| |
| fitod %f10,%f4 |
| cmp %i1,0 |
| bge L(248) |
| mov %i0,%i5 |
| faddd %f4,%f8,%f4 |
| L(248): |
| st %i2,[%fp-8] |
| ld [%fp-8],%f10 |
| fmuld %f4,%f8,%f6 |
| cmp %i2,0 |
| bge L(249) |
| fitod %f10,%f2 |
| faddd %f2,%f8,%f2 |
| L(249): |
| st %i3,[%fp-8] |
| faddd %f6,%f2,%f2 |
| ld [%fp-8],%f10 |
| cmp %i3,0 |
| bge L(250) |
| fitod %f10,%f4 |
| faddd %f4,%f8,%f4 |
| L(250): |
| fdivd %f2,%f4,%f2 |
| |
| ifdef(`PIC', |
| ` ldd [%o7+L(C1)-L(pc)],%f4', |
| ` sethi %hi(L(C1)),%o7 |
| ldd [%o7+%lo(L(C1))],%f4') |
| |
| fcmped %f2,%f4 |
| nop |
| fbge,a L(251) |
| fsubd %f2,%f4,%f2 |
| fdtoi %f2,%f2 |
| st %f2,[%fp-8] |
| b L(252) |
| ld [%fp-8],%i4 |
| L(251): |
| fdtoi %f2,%f2 |
| st %f2,[%fp-8] |
| ld [%fp-8],%i4 |
| sethi %hi(-2147483648),%g2 |
| xor %i4,%g2,%i4 |
| L(252): |
| wr %g0,%i4,%y |
| sra %i3,31,%g2 |
| and %i4,%g2,%g2 |
| andcc %g0,0,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,%i3,%g1 |
| mulscc %g1,0,%g1 |
| add %g1,%g2,%i0 |
| rd %y,%g3 |
| subcc %i2,%g3,%o7 |
| subxcc %i1,%i0,%g0 |
| be L(253) |
| cmp %o7,%i3 |
| |
| add %i4,-1,%i0 |
| add %o7,%i3,%o7 |
| st %o7,[%i5] |
| ret |
| restore |
| L(253): |
| blu L(246) |
| mov %i4,%i0 |
| add %i4,1,%i0 |
| sub %o7,%i3,%o7 |
| L(246): |
| st %o7,[%i5] |
| ret |
| restore |
| EPILOGUE(mpn_udiv_qrnnd) |