/* SuperSPARC __udiv_qrnnd division support, used from longlong.h. * This is for SuperSPARC only, to compensate for its * semi-functional udiv instruction. * * Copyright (C) 1993, 1994, 1996, 1998, * 2001, 2002 Free Software Foundation, Inc. * * This file is part of Libgcrypt. * * Libgcrypt is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser General Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * Libgcrypt is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA * * Note: This code is heavily based on the GNU MP Library. * Actually it's the same code with only minor changes in the * way the data is stored; this is to support the abstraction * of an optional secure memory allocation which may be used * to avoid revealing of sensitive data due to paging etc. */ ! INPUT PARAMETERS ! rem_ptr i0 ! n1 i1 ! n0 i2 ! d i3 #include "sysdep.h" #undef ret /* Kludge for glibc */ .text .align 8 LC0: .double 0r4294967296 LC1: .double 0r2147483648 .align 4 .global C_SYMBOL_NAME(__udiv_qrnnd) C_SYMBOL_NAME(__udiv_qrnnd): !#PROLOGUE# 0 save %sp,-104,%sp !#PROLOGUE# 1 st %i1,[%fp-8] ld [%fp-8],%f10 sethi %hi(LC0),%o7 fitod %f10,%f4 ldd [%o7+%lo(LC0)],%f8 cmp %i1,0 bge L248 mov %i0,%i5 faddd %f4,%f8,%f4 L248: st %i2,[%fp-8] ld [%fp-8],%f10 fmuld %f4,%f8,%f6 cmp %i2,0 bge L249 fitod %f10,%f2 faddd %f2,%f8,%f2 L249: st %i3,[%fp-8] faddd %f6,%f2,%f2 ld [%fp-8],%f10 cmp %i3,0 bge L250 fitod %f10,%f4 faddd %f4,%f8,%f4 L250: fdivd %f2,%f4,%f2 sethi %hi(LC1),%o7 ldd [%o7+%lo(LC1)],%f4 fcmped %f2,%f4 nop fbge,a L251 fsubd %f2,%f4,%f2 fdtoi %f2,%f2 st %f2,[%fp-8] b L252 ld [%fp-8],%i4 L251: fdtoi %f2,%f2 st %f2,[%fp-8] ld [%fp-8],%i4 sethi %hi(-2147483648),%g2 xor %i4,%g2,%i4 L252: umul %i3,%i4,%g3 rd %y,%i0 subcc %i2,%g3,%o7 subxcc %i1,%i0,%g0 be L253 cmp %o7,%i3 add %i4,-1,%i0 add %o7,%i3,%o7 st %o7,[%i5] ret restore L253: blu L246 mov %i4,%i0 add %i4,1,%i0 sub %o7,%i3,%o7 L246: st %o7,[%i5] ret restore