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-rw-r--r--arch/mips/math-emu/dp_scalb.c58
1 files changed, 58 insertions, 0 deletions
diff --git a/arch/mips/math-emu/dp_scalb.c b/arch/mips/math-emu/dp_scalb.c
new file mode 100644
index 0000000..b84e633
--- /dev/null
+++ b/arch/mips/math-emu/dp_scalb.c
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+/* IEEE754 floating point arithmetic
+ * double precision: common utilities
+ */
+/*
+ * MIPS floating point support
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ * 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 "ieee754dp.h"
+
+ieee754dp ieee754dp_scalb(ieee754dp x, int n)
+{
+ COMPXDP;
+
+ CLEARCX;
+
+ EXPLODEXDP;
+
+ switch (xc) {
+ case IEEE754_CLASS_SNAN:
+ return ieee754dp_nanxcpt(x, "scalb", x, n);
+ case IEEE754_CLASS_QNAN:
+ case IEEE754_CLASS_INF:
+ case IEEE754_CLASS_ZERO:
+ return x;
+ case IEEE754_CLASS_DNORM:
+ DPDNORMX;
+ break;
+ case IEEE754_CLASS_NORM:
+ break;
+ }
+ DPNORMRET2(xs, xe + n, xm << 3, "scalb", x, n);
+}
+
+
+ieee754dp ieee754dp_ldexp(ieee754dp x, int n)
+{
+ return ieee754dp_scalb(x, n);
+}
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