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-rw-r--r--kernel/arch/mips/math-emu/ieee754d.c111
1 files changed, 111 insertions, 0 deletions
diff --git a/kernel/arch/mips/math-emu/ieee754d.c b/kernel/arch/mips/math-emu/ieee754d.c
new file mode 100644
index 000000000..a04e8a7e5
--- /dev/null
+++ b/kernel/arch/mips/math-emu/ieee754d.c
@@ -0,0 +1,111 @@
+/*
+ * Some debug functions
+ *
+ * MIPS floating point support
+ *
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ *
+ * 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.,
+ * 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Nov 7, 2000
+ * Modified to build and operate in Linux kernel environment.
+ *
+ * Kevin D. Kissell, kevink@mips.com and Carsten Langgaard, carstenl@mips.com
+ * Copyright (C) 2000 MIPS Technologies, Inc. All rights reserved.
+ */
+
+#include <linux/types.h>
+#include <linux/printk.h>
+#include "ieee754.h"
+#include "ieee754sp.h"
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_dump(char *m, union ieee754dp x)
+{
+ int i;
+
+ printk("%s", m);
+ printk("<%08x,%08x>\n", (unsigned) (x.bits >> 32),
+ (unsigned) x.bits);
+ printk("\t=");
+ switch (ieee754dp_class(x)) {
+ case IEEE754_CLASS_QNAN:
+ case IEEE754_CLASS_SNAN:
+ printk("Nan %c", DPSIGN(x) ? '-' : '+');
+ for (i = DP_FBITS - 1; i >= 0; i--)
+ printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
+ break;
+ case IEEE754_CLASS_INF:
+ printk("%cInfinity", DPSIGN(x) ? '-' : '+');
+ break;
+ case IEEE754_CLASS_ZERO:
+ printk("%cZero", DPSIGN(x) ? '-' : '+');
+ break;
+ case IEEE754_CLASS_DNORM:
+ printk("%c0.", DPSIGN(x) ? '-' : '+');
+ for (i = DP_FBITS - 1; i >= 0; i--)
+ printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
+ printk("e%d", DPBEXP(x) - DP_EBIAS);
+ break;
+ case IEEE754_CLASS_NORM:
+ printk("%c1.", DPSIGN(x) ? '-' : '+');
+ for (i = DP_FBITS - 1; i >= 0; i--)
+ printk("%c", DPMANT(x) & DP_MBIT(i) ? '1' : '0');
+ printk("e%d", DPBEXP(x) - DP_EBIAS);
+ break;
+ default:
+ printk("Illegal/Unknown IEEE754 value class");
+ }
+ printk("\n");
+ return x;
+}
+
+union ieee754sp ieee754sp_dump(char *m, union ieee754sp x)
+{
+ int i;
+
+ printk("%s=", m);
+ printk("<%08x>\n", (unsigned) x.bits);
+ printk("\t=");
+ switch (ieee754sp_class(x)) {
+ case IEEE754_CLASS_QNAN:
+ case IEEE754_CLASS_SNAN:
+ printk("Nan %c", SPSIGN(x) ? '-' : '+');
+ for (i = SP_FBITS - 1; i >= 0; i--)
+ printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
+ break;
+ case IEEE754_CLASS_INF:
+ printk("%cInfinity", SPSIGN(x) ? '-' : '+');
+ break;
+ case IEEE754_CLASS_ZERO:
+ printk("%cZero", SPSIGN(x) ? '-' : '+');
+ break;
+ case IEEE754_CLASS_DNORM:
+ printk("%c0.", SPSIGN(x) ? '-' : '+');
+ for (i = SP_FBITS - 1; i >= 0; i--)
+ printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
+ printk("e%d", SPBEXP(x) - SP_EBIAS);
+ break;
+ case IEEE754_CLASS_NORM:
+ printk("%c1.", SPSIGN(x) ? '-' : '+');
+ for (i = SP_FBITS - 1; i >= 0; i--)
+ printk("%c", SPMANT(x) & SP_MBIT(i) ? '1' : '0');
+ printk("e%d", SPBEXP(x) - SP_EBIAS);
+ break;
+ default:
+ printk("Illegal/Unknown IEEE754 value class");
+ }
+ printk("\n");
+ return x;
+}