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-rw-r--r--kernel/arch/mips/math-emu/sp_simple.c49
1 files changed, 49 insertions, 0 deletions
diff --git a/kernel/arch/mips/math-emu/sp_simple.c b/kernel/arch/mips/math-emu/sp_simple.c
new file mode 100644
index 000000000..c50e9451f
--- /dev/null
+++ b/kernel/arch/mips/math-emu/sp_simple.c
@@ -0,0 +1,49 @@
+/* IEEE754 floating point arithmetic
+ * single precision
+ */
+/*
+ * 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.
+ */
+
+#include "ieee754sp.h"
+
+union ieee754sp ieee754sp_neg(union ieee754sp x)
+{
+ unsigned int oldrm;
+ union ieee754sp y;
+
+ oldrm = ieee754_csr.rm;
+ ieee754_csr.rm = FPU_CSR_RD;
+ y = ieee754sp_sub(ieee754sp_zero(0), x);
+ ieee754_csr.rm = oldrm;
+ return y;
+}
+
+union ieee754sp ieee754sp_abs(union ieee754sp x)
+{
+ unsigned int oldrm;
+ union ieee754sp y;
+
+ oldrm = ieee754_csr.rm;
+ ieee754_csr.rm = FPU_CSR_RD;
+ if (SPSIGN(x))
+ y = ieee754sp_sub(ieee754sp_zero(0), x);
+ else
+ y = ieee754sp_add(ieee754sp_zero(0), x);
+ ieee754_csr.rm = oldrm;
+ return y;
+}