1 files changed, 49 insertions, 0 deletions

diff --git a/arch/mips/math-emu/dp_simple.c b/arch/mips/math-emu/dp_simple.c
new file mode 100644
index 000000000..b063aad7d
--- /dev/null
+++ b/arch/mips/math-emu/dp_simple.c
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/* IEEE754 floating point arithmetic
+ * double precision: common utilities
+ */
+/*
+ * MIPS floating point support
+ * Copyright (C) 1994-2000 Algorithmics Ltd.
+ */
+
+#include "ieee754dp.h"
+
+union ieee754dp ieee754dp_neg(union ieee754dp x)
+{
+        union ieee754dp y;
+
+        if (ieee754_csr.abs2008) {
+                y = x;
+                DPSIGN(y) = !DPSIGN(x);
+        } else {
+                unsigned int oldrm;
+
+                oldrm = ieee754_csr.rm;
+                ieee754_csr.rm = FPU_CSR_RD;
+                y = ieee754dp_sub(ieee754dp_zero(0), x);
+                ieee754_csr.rm = oldrm;
+        }
+        return y;
+}
+
+union ieee754dp ieee754dp_abs(union ieee754dp x)
+{
+        union ieee754dp y;
+
+        if (ieee754_csr.abs2008) {
+                y = x;
+                DPSIGN(y) = 0;
+        } else {
+                unsigned int oldrm;
+
+                oldrm = ieee754_csr.rm;
+                ieee754_csr.rm = FPU_CSR_RD;
+                if (DPSIGN(x))
+                        y = ieee754dp_sub(ieee754dp_zero(0), x);
+                else
+                        y = ieee754dp_add(ieee754dp_zero(0), x);
+                ieee754_csr.rm = oldrm;
+        }
+        return y;
+}