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/* Software floating-point emulation: comparison.
Copyright (C) 1997,1999,2004 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson (rth@cygnus.com) and
Jakub Jelinek (jj@ultra.linux.cz).
The GNU C Library 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.
The GNU C Library 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 the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "local-soft-fp.h"
static long
internal_compare (long al, long ah, long bl, long bh)
{
FP_DECL_EX;
FP_DECL_Q(A); FP_DECL_Q(B);
long r;
FP_UNPACK_RAW_Q(A, a);
FP_UNPACK_RAW_Q(B, b);
FP_CMP_Q (r, A, B, 2);
/* Relative comparisons signal invalid operation if either operand is NaN. */
if (r == 2)
{
FP_SET_EXCEPTION(FP_EX_INVALID);
FP_HANDLE_EXCEPTIONS;
}
return r;
}
long
_OtsLssX (long al, long ah, long bl, long bh)
{
long r = internal_compare (al, ah, bl, bh);
if (r == 2)
return -1;
else
return r < 0;
}
long
_OtsLeqX (long al, long ah, long bl, long bh)
{
long r = internal_compare (al, ah, bl, bh);
if (r == 2)
return -1;
else
return r <= 0;
}
long
_OtsGtrX (long al, long ah, long bl, long bh)
{
long r = internal_compare (al, ah, bl, bh);
if (r == 2)
return -1;
else
return r > 0;
}
long
_OtsGeqX (long al, long ah, long bl, long bh)
{
long r = internal_compare (al, ah, bl, bh);
if (r == 2)
return -1;
else
return r >= 0;
}
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