patch-2.4.6 linux/arch/mips64/math-emu/sp_cmp.c
Next file: linux/arch/mips64/math-emu/sp_div.c
Previous file: linux/arch/mips64/math-emu/sp_add.c
Back to the patch index
Back to the overall index
- Lines: 59
- Date:
Mon Jul 2 13:56:41 2001
- Orig file:
v2.4.5/linux/arch/mips64/math-emu/sp_cmp.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -u --recursive --new-file v2.4.5/linux/arch/mips64/math-emu/sp_cmp.c linux/arch/mips64/math-emu/sp_cmp.c
@@ -0,0 +1,58 @@
+/* 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;
+ }
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)