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/* IEEE754 floating point arithmetic * single precision */ /* * MIPS floating point support * Copyright (C) 1994-2000 Algorithmics Ltd. All rights reserved. * http://www.algor.co.uk * * ######################################################################## * * This program is free software; you can distribute it and/or modify it * under the terms of the GNU General Public License (Version 2) as * published by the Free Software Foundation. * * This program is distributed in the hope 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. * * You should have received a copy of the GNU 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. * * ######################################################################## */ #include "ieee754sp.h" int ieee754sp_cmp(ieee754sp x, ieee754sp y, int cmp) { CLEARCX; if (ieee754sp_isnan(x) || ieee754sp_isnan(y)) { if (cmp & IEEE754_CUN) return 1; if (cmp & (IEEE754_CLT | IEEE754_CGT)) { if (SETCX(IEEE754_INVALID_OPERATION)) return ieee754si_xcpt(0, "fcmpf", x); } return 0; } else { int vx = x.bits; int vy = y.bits; if (vx < 0) vx = -vx ^ SP_SIGN_BIT; if (vy < 0) vy = -vy ^ SP_SIGN_BIT; if (vx < vy) return (cmp & IEEE754_CLT) != 0; else if (vx == vy) return (cmp & IEEE754_CEQ) != 0; else return (cmp & IEEE754_CGT) != 0; } } |