1 /* IEEE754 floating point arithmetic
5 * MIPS floating point support
6 * Copyright (C) 1994-2000 Algorithmics Ltd.
8 * ########################################################################
10 * This program is free software; you can distribute it and/or modify it
11 * under the terms of the GNU General Public License (Version 2) as
12 * published by the Free Software Foundation.
14 * This program is distributed in the hope it will be useful, but WITHOUT
15 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
16 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
19 * You should have received a copy of the GNU General Public License along
20 * with this program; if not, write to the Free Software Foundation, Inc.,
21 * 59 Temple Place - Suite 330, Boston MA 02111-1307, USA.
23 * ########################################################################
27 #include "ieee754sp.h"
29 int ieee754sp_cmp(ieee754sp x
, ieee754sp y
, int cmp
, int sig
)
38 CLEARCX
; /* Even clear inexact flag here */
40 if (ieee754sp_isnan(x
) || ieee754sp_isnan(y
)) {
41 if (sig
|| xc
== IEEE754_CLASS_SNAN
|| yc
== IEEE754_CLASS_SNAN
)
42 SETCX(IEEE754_INVALID_OPERATION
);
43 if (cmp
& IEEE754_CUN
)
45 if (cmp
& (IEEE754_CLT
| IEEE754_CGT
)) {
46 if (sig
&& SETANDTESTCX(IEEE754_INVALID_OPERATION
))
47 return ieee754si_xcpt(0, "fcmpf", x
);
55 vx
= -vx
^ SP_SIGN_BIT
;
57 vy
= -vy
^ SP_SIGN_BIT
;
60 return (cmp
& IEEE754_CLT
) != 0;
62 return (cmp
& IEEE754_CEQ
) != 0;
64 return (cmp
& IEEE754_CGT
) != 0;