Retro68/gcc/libgcc/divmod.c

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/* Copyright (C) 2000-2022 Free Software Foundation, Inc.
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This file is part of GCC.
GCC is free software; you can redistribute it and/or modify it under
the terms of the GNU General Public License as published by the Free
Software Foundation; either version 3, or (at your option) any later
version.
GCC 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 General Public License
for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
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extern unsigned long __udivmodsi4(unsigned long num, unsigned long den,
int modwanted);
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long
__divsi3 (long a, long b)
{
int neg = 0;
long res;
if (a < 0)
{
a = -a;
neg = !neg;
}
if (b < 0)
{
b = -b;
neg = !neg;
}
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res = __udivmodsi4 (a, b, 0);
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if (neg)
res = -res;
return res;
}
long
__modsi3 (long a, long b)
{
int neg = 0;
long res;
if (a < 0)
{
a = -a;
neg = 1;
}
if (b < 0)
b = -b;
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res = __udivmodsi4 (a, b, 1);
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if (neg)
res = -res;
return res;
}