diff --git a/source/RISC-V/extF80M_isSignalingNaN.c b/source/RISC-V/extF80M_isSignalingNaN.c
new file mode 100644
index 0000000..6ce571f
--- /dev/null
+++ b/source/RISC-V/extF80M_isSignalingNaN.c
@@ -0,0 +1,54 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014 The Regents of the University of California
+(Regents).  All Rights Reserved.  Redistribution and use in source and binary
+forms, with or without modification, are permitted provided that the following
+conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+bool extF80M_isSignalingNaN( const extFloat80_t *aPtr )
+{
+    const struct extFloat80M *aSPtr;
+    uint64_t uiA0;
+
+    aSPtr = (const struct extFloat80M *) aPtr;
+    if ( (aSPtr->signExp & 0x7FFF) != 0x7FFF ) return false;
+    uiA0 = aSPtr->signif;
+    return
+        ! (uiA0 & UINT64_C( 0x4000000000000000 ))
+            && (uiA0 & UINT64_C( 0x3FFFFFFFFFFFFFFF));
+
+}
+
diff --git a/source/RISC-V/f128M_isSignalingNaN.c b/source/RISC-V/f128M_isSignalingNaN.c
new file mode 100644
index 0000000..1f46781
--- /dev/null
+++ b/source/RISC-V/f128M_isSignalingNaN.c
@@ -0,0 +1,57 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014 The Regents of the University of California
+(Regents).  All Rights Reserved.  Redistribution and use in source and binary
+forms, with or without modification, are permitted provided that the following
+conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "primitives.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+*----------------------------------------------------------------------------*/
+bool f128M_isSignalingNaN( const float128_t *aPtr )
+{
+    const uint32_t *aWPtr;
+    uint32_t uiA96;
+
+    aWPtr = (const uint32_t *) aPtr;
+    uiA96 = aWPtr[indexWordHi( 4 )];
+    if ( (uiA96 & 0x7FFF8000) != 0x7FFF0000 ) return false;
+    return
+        ((uiA96 & 0x00007FFF) != 0)
+            || ((aWPtr[indexWord( 4, 2 )] | aWPtr[indexWord( 4, 1 )]
+                     | aWPtr[indexWord( 4, 0 )])
+                    != 0);
+
+}
+
diff --git a/source/RISC-V/s_commonNaNToExtF80M.c b/source/RISC-V/s_commonNaNToExtF80M.c
new file mode 100644
index 0000000..464b22a
--- /dev/null
+++ b/source/RISC-V/s_commonNaNToExtF80M.c
@@ -0,0 +1,54 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include "platform.h"
+#include "softfloat_types.h"
+
+#define softfloat_commonNaNToExtF80M softfloat_commonNaNToExtF80M
+#include "specialize.h"
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
+| floating-point NaN, and stores this NaN at the location pointed to by
+| `zSPtr'.
+*----------------------------------------------------------------------------*/
+void
+ softfloat_commonNaNToExtF80M(
+     const struct commonNaN *aPtr, struct extFloat80M *zSPtr )
+{
+
+    zSPtr->signExp = defaultNaNExtF80UI64;
+    zSPtr->signif  = defaultNaNExtF80UI0;
+
+}
+
diff --git a/source/RISC-V/s_commonNaNToExtF80UI.c b/source/RISC-V/s_commonNaNToExtF80UI.c
new file mode 100644
index 0000000..2cc6617
--- /dev/null
+++ b/source/RISC-V/s_commonNaNToExtF80UI.c
@@ -0,0 +1,54 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include "platform.h"
+#include "primitiveTypes.h"
+
+#define softfloat_commonNaNToExtF80UI softfloat_commonNaNToExtF80UI
+#include "specialize.h"
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
+| floating-point NaN, and returns the bit pattern of this value as an unsigned
+| integer.
+*----------------------------------------------------------------------------*/
+struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr )
+{
+    struct uint128 uiZ;
+
+    uiZ.v64 = defaultNaNExtF80UI64;
+    uiZ.v0  = defaultNaNExtF80UI0;
+    return uiZ;
+
+}
+
diff --git a/source/RISC-V/s_commonNaNToF128M.c b/source/RISC-V/s_commonNaNToF128M.c
new file mode 100644
index 0000000..ac07899
--- /dev/null
+++ b/source/RISC-V/s_commonNaNToF128M.c
@@ -0,0 +1,57 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+#include "primitiveTypes.h"
+
+#define softfloat_commonNaNToF128M softfloat_commonNaNToF128M
+#include "specialize.h"
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
+| NaN, and stores this NaN at the location pointed to by `zWPtr'.  Argument
+| `zWPtr' points to an array of four 32-bit elements that concatenate in the
+| platform's normal endian order to form a 128-bit floating-point value.
+*----------------------------------------------------------------------------*/
+void
+ softfloat_commonNaNToF128M( const struct commonNaN *aPtr, uint32_t *zWPtr )
+{
+
+    zWPtr[indexWord( 4, 3 )] = defaultNaNF128UI96;
+    zWPtr[indexWord( 4, 2 )] = defaultNaNF128UI64;
+    zWPtr[indexWord( 4, 1 )] = defaultNaNF128UI32;
+    zWPtr[indexWord( 4, 0 )] = defaultNaNF128UI0;
+
+}
+
diff --git a/source/RISC-V/s_commonNaNToF128UI.c b/source/RISC-V/s_commonNaNToF128UI.c
new file mode 100644
index 0000000..21c4030
--- /dev/null
+++ b/source/RISC-V/s_commonNaNToF128UI.c
@@ -0,0 +1,53 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include "platform.h"
+#include "primitiveTypes.h"
+
+#define softfloat_commonNaNToF128UI softfloat_commonNaNToF128UI
+#include "specialize.h"
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
+| NaN, and returns the bit pattern of this value as an unsigned integer.
+*----------------------------------------------------------------------------*/
+struct uint128 softfloat_commonNaNToF128UI( const struct commonNaN *aPtr )
+{
+    struct uint128 uiZ;
+
+    uiZ.v64 = defaultNaNF128UI64;
+    uiZ.v0  = defaultNaNF128UI0;
+    return uiZ;
+
+}
+
diff --git a/source/RISC-V/s_commonNaNToF32UI.c b/source/RISC-V/s_commonNaNToF32UI.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_commonNaNToF32UI.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_commonNaNToF64UI.c b/source/RISC-V/s_commonNaNToF64UI.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_commonNaNToF64UI.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_extF80MToCommonNaN.c b/source/RISC-V/s_extF80MToCommonNaN.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_extF80MToCommonNaN.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_extF80UIToCommonNaN.c b/source/RISC-V/s_extF80UIToCommonNaN.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_extF80UIToCommonNaN.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_f128MToCommonNaN.c b/source/RISC-V/s_f128MToCommonNaN.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_f128MToCommonNaN.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_f128UIToCommonNaN.c b/source/RISC-V/s_f128UIToCommonNaN.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_f128UIToCommonNaN.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_f32UIToCommonNaN.c b/source/RISC-V/s_f32UIToCommonNaN.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_f32UIToCommonNaN.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_f64UIToCommonNaN.c b/source/RISC-V/s_f64UIToCommonNaN.c
new file mode 100644
index 0000000..8b13789
--- /dev/null
+++ b/source/RISC-V/s_f64UIToCommonNaN.c
@@ -0,0 +1 @@
+
diff --git a/source/RISC-V/s_propagateNaNExtF80M.c b/source/RISC-V/s_propagateNaNExtF80M.c
new file mode 100644
index 0000000..3305fb5
--- /dev/null
+++ b/source/RISC-V/s_propagateNaNExtF80M.c
@@ -0,0 +1,71 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+#include "primitiveTypes.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Assuming at least one of the two 80-bit extended floating-point values
+| pointed to by `aSPtr' and `bSPtr' is a NaN, stores the combined NaN result
+| at the location pointed to by `zSPtr'.  If either original floating-point
+| value is a signaling NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+void
+ softfloat_propagateNaNExtF80M(
+     const struct extFloat80M *aSPtr,
+     const struct extFloat80M *bSPtr,
+     struct extFloat80M *zSPtr
+ )
+{
+    uint_fast16_t ui64;
+    uint_fast64_t ui0;
+
+    ui64 = aSPtr->signExp;
+    ui0  = aSPtr->signif;
+    if (
+        softfloat_isSigNaNExtF80UI( ui64, ui0 )
+            || (bSPtr
+                    && (ui64 = bSPtr->signExp,
+                        ui0  = bSPtr->signif,
+                        softfloat_isSigNaNExtF80UI( ui64, ui0 )))
+    ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+    }
+    zSPtr->signExp = defaultNaNExtF80UI64;
+    zSPtr->signif  = defaultNaNExtF80UI0;
+
+}
+
diff --git a/source/RISC-V/s_propagateNaNExtF80UI.c b/source/RISC-V/s_propagateNaNExtF80UI.c
new file mode 100644
index 0000000..ad3c94e
--- /dev/null
+++ b/source/RISC-V/s_propagateNaNExtF80UI.c
@@ -0,0 +1,70 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+#include "primitiveTypes.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Interpreting the unsigned integer formed from concatenating `uiA64' and
+| `uiA0' as an 80-bit extended floating-point value, and likewise interpreting
+| the unsigned integer formed from concatenating `uiB64' and `uiB0' as another
+| 80-bit extended floating-point value, and assuming at least on of these
+| floating-point values is a NaN, returns the bit pattern of the combined NaN
+| result.  If either original floating-point value is a signaling NaN, the
+| invalid exception is raised.
+*----------------------------------------------------------------------------*/
+struct uint128
+ softfloat_propagateNaNExtF80UI(
+     uint_fast16_t uiA64,
+     uint_fast64_t uiA0,
+     uint_fast16_t uiB64,
+     uint_fast64_t uiB0
+ )
+{
+    struct uint128 uiZ;
+
+    if (
+           softfloat_isSigNaNExtF80UI( uiA64, uiA0 )
+        || softfloat_isSigNaNExtF80UI( uiB64, uiB0 )
+    ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+    }
+    uiZ.v64 = defaultNaNExtF80UI64;
+    uiZ.v0  = defaultNaNExtF80UI0;
+    return uiZ;
+
+}
+
diff --git a/source/RISC-V/s_propagateNaNF128M.c b/source/RISC-V/s_propagateNaNF128M.c
new file mode 100644
index 0000000..bb0ce7e
--- /dev/null
+++ b/source/RISC-V/s_propagateNaNF128M.c
@@ -0,0 +1,65 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+#include "primitiveTypes.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Assuming at least one of the two 128-bit floating-point values pointed to by
+| `aWPtr' and `bWPtr' is a NaN, stores the combined NaN result at the location
+| pointed to by `zWPtr'.  If either original floating-point value is a
+| signaling NaN, the invalid exception is raised.  Each of `aWPtr', `bWPtr',
+| and `zWPtr' points to an array of four 32-bit elements that concatenate in
+| the platform's normal endian order to form a 128-bit floating-point value.
+*----------------------------------------------------------------------------*/
+void
+ softfloat_propagateNaNF128M(
+     const uint32_t *aWPtr, const uint32_t *bWPtr, uint32_t *zWPtr )
+{
+
+    if (
+        f128M_isSignalingNaN( (const float128_t *) aWPtr );
+            || (bWPtr && f128M_isSignalingNaN( (const float128_t *) bWPtr ))
+    ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+    }
+    zWPtr[indexWord( 4, 3 )] = defaultNaNF128UI96;
+    zWPtr[indexWord( 4, 2 )] = defaultNaNF128UI64;
+    zWPtr[indexWord( 4, 1 )] = defaultNaNF128UI32;
+    zWPtr[indexWord( 4, 0 )] = defaultNaNF128UI0;
+
+}
+
diff --git a/source/RISC-V/s_propagateNaNF128UI.c b/source/RISC-V/s_propagateNaNF128UI.c
new file mode 100644
index 0000000..14f1536
--- /dev/null
+++ b/source/RISC-V/s_propagateNaNF128UI.c
@@ -0,0 +1,70 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+#include "primitiveTypes.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Interpreting the unsigned integer formed from concatenating `uiA64' and
+| `uiA0' as a 128-bit floating-point value, and likewise interpreting the
+| unsigned integer formed from concatenating `uiB64' and `uiB0' as another
+| 128-bit floating-point value, and assuming at least on of these floating-
+| point values is a NaN, returns the bit pattern of the combined NaN result.
+| If either original floating-point value is a signaling NaN, the invalid
+| exception is raised.
+*----------------------------------------------------------------------------*/
+struct uint128
+ softfloat_propagateNaNF128UI(
+     uint_fast64_t uiA64,
+     uint_fast64_t uiA0,
+     uint_fast64_t uiB64,
+     uint_fast64_t uiB0
+ )
+{
+    struct uint128 uiZ;
+
+    if (
+           softfloat_isSigNaNF128UI( uiA64, uiA0 )
+        || softfloat_isSigNaNF128UI( uiB64, uiB0 )
+    ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+    }
+    uiZ.v64 = defaultNaNF128UI64;
+    uiZ.v0  = defaultNaNF128UI0;
+    return uiZ;
+
+}
+
diff --git a/source/RISC-V/s_propagateNaNF32UI.c b/source/RISC-V/s_propagateNaNF32UI.c
new file mode 100644
index 0000000..666b266
--- /dev/null
+++ b/source/RISC-V/s_propagateNaNF32UI.c
@@ -0,0 +1,55 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Interpreting `uiA' and `uiB' as the bit patterns of two 32-bit floating-
+| point values, at least one of which is a NaN, returns the bit pattern of
+| the combined NaN result.  If either `uiA' or `uiB' has the pattern of a
+| signaling NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+uint_fast32_t
+ softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB )
+{
+
+    if ( softfloat_isSigNaNF32UI( uiA ) || softfloat_isSigNaNF32UI( uiB ) ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+    }
+    return defaultNaNF32UI;
+
+}
+
diff --git a/source/RISC-V/s_propagateNaNF64UI.c b/source/RISC-V/s_propagateNaNF64UI.c
new file mode 100644
index 0000000..65da059
--- /dev/null
+++ b/source/RISC-V/s_propagateNaNF64UI.c
@@ -0,0 +1,55 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include <stdint.h>
+#include "platform.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Interpreting `uiA' and `uiB' as the bit patterns of two 64-bit floating-
+| point values, at least one of which is a NaN, returns the bit pattern of
+| the combined NaN result.  If either `uiA' or `uiB' has the pattern of a
+| signaling NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+uint_fast64_t
+ softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB )
+{
+
+    if ( softfloat_isSigNaNF64UI( uiA ) || softfloat_isSigNaNF64UI( uiB ) ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+    }
+    return defaultNaNF64UI;
+
+}
+
diff --git a/source/RISC-V/softfloat_raiseFlags.c b/source/RISC-V/softfloat_raiseFlags.c
new file mode 100644
index 0000000..906e560
--- /dev/null
+++ b/source/RISC-V/softfloat_raiseFlags.c
@@ -0,0 +1,49 @@
+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014 The Regents of the University of California
+(Regents).  All Rights Reserved.  Redistribution and use in source and binary
+forms, with or without modification, are permitted provided that the following
+conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#include "platform.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Raises the exceptions specified by `flags'.  Floating-point traps can be
+| defined here if desired.  It is currently not possible for such a trap
+| to substitute a result value.  If traps are not implemented, this routine
+| should be simply `softfloat_exceptionFlags |= flags;'.
+*----------------------------------------------------------------------------*/
+void softfloat_raiseFlags( uint_fast8_t flags )
+{
+
+    softfloat_exceptionFlags |= flags;
+
+}
+
diff --git a/source/RISC-V/specialize.h b/source/RISC-V/specialize.h
new file mode 100644
index 0000000..81be7a2
--- /dev/null
+++ b/source/RISC-V/specialize.h
@@ -0,0 +1,347 @@
+
+/*============================================================================
+
+This C header file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
+California (Regents).  All Rights Reserved.  Redistribution and use in source
+and binary forms, with or without modification, are permitted provided that
+the following conditions are met:
+
+Redistributions of source code must retain the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer.
+Redistributions in binary form must reproduce the above copyright notice,
+this list of conditions, and the following two paragraphs of disclaimer in the
+documentation and/or other materials provided with the distribution.  Neither
+the name of the Regents nor the names of its contributors may be used to
+endorse or promote products derived from this software without specific prior
+written permission.
+
+IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
+SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
+OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
+BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
+TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
+HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
+MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
+
+=============================================================================*/
+
+#ifndef specialize_h
+#define specialize_h 1
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "primitiveTypes.h"
+#include "softfloat.h"
+
+/*----------------------------------------------------------------------------
+| Default value for `softfloat_detectTininess'.
+*----------------------------------------------------------------------------*/
+#define init_detectTininess softfloat_tininess_afterRounding;
+
+/*----------------------------------------------------------------------------
+| "Common NaN" structure, used to transfer NaN representations from one format
+| to another.
+*----------------------------------------------------------------------------*/
+struct commonNaN { char _unused; };
+
+/*----------------------------------------------------------------------------
+| The bit pattern for a default generated 32-bit floating-point NaN.
+*----------------------------------------------------------------------------*/
+#define defaultNaNF32UI 0xFFFFFFFF
+
+/*----------------------------------------------------------------------------
+| Returns true when 32-bit unsigned integer `uiA' has the bit pattern of a
+| 32-bit floating-point signaling NaN.
+| Note:  This macro evaluates its argument more than once.
+*----------------------------------------------------------------------------*/
+#define softfloat_isSigNaNF32UI( uiA ) ((((uiA) & 0x7FC00000) == 0x7F800000) && ((uiA) & 0x003FFFFF))
+
+/*----------------------------------------------------------------------------
+| Assuming `uiA' has the bit pattern of a 32-bit floating-point NaN, converts
+| this NaN to the common NaN form, and stores the resulting common NaN at the
+| location pointed to by `zPtr'.  If the NaN is a signaling NaN, the invalid
+| exception is raised.
+*----------------------------------------------------------------------------*/
+#define softfloat_f32UIToCommonNaN( uiA, zPtr ) if ( ! ((uiA) & 0x00400000) ) softfloat_raiseFlags( softfloat_flag_invalid )
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into a 32-bit floating-point
+| NaN, and returns the bit pattern of this value as an unsigned integer.
+*----------------------------------------------------------------------------*/
+#define softfloat_commonNaNToF32UI( aPtr ) ((uint_fast32_t) defaultNaNF32UI)
+
+/*----------------------------------------------------------------------------
+| Interpreting `uiA' and `uiB' as the bit patterns of two 32-bit floating-
+| point values, at least one of which is a NaN, returns the bit pattern of
+| the combined NaN result.  If either `uiA' or `uiB' has the pattern of a
+| signaling NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+uint_fast32_t
+ softfloat_propagateNaNF32UI( uint_fast32_t uiA, uint_fast32_t uiB );
+
+/*----------------------------------------------------------------------------
+| The bit pattern for a default generated 64-bit floating-point NaN.
+*----------------------------------------------------------------------------*/
+#define defaultNaNF64UI UINT64_C( 0xFFFFFFFFFFFFFFFF )
+
+/*----------------------------------------------------------------------------
+| Returns true when 64-bit unsigned integer `uiA' has the bit pattern of a
+| 64-bit floating-point signaling NaN.
+| Note:  This macro evaluates its argument more than once.
+*----------------------------------------------------------------------------*/
+#define softfloat_isSigNaNF64UI( uiA ) ((((uiA) & UINT64_C( 0x7FF8000000000000 )) == UINT64_C( 0x7FF0000000000000 )) && ((uiA) & UINT64_C( 0x0007FFFFFFFFFFFF )))
+
+/*----------------------------------------------------------------------------
+| Assuming `uiA' has the bit pattern of a 64-bit floating-point NaN, converts
+| this NaN to the common NaN form, and stores the resulting common NaN at the
+| location pointed to by `zPtr'.  If the NaN is a signaling NaN, the invalid
+| exception is raised.
+*----------------------------------------------------------------------------*/
+#define softfloat_f64UIToCommonNaN( uiA, zPtr ) if ( ! ((uiA) & UINT64_C( 0x0008000000000000 )) ) softfloat_raiseFlags( softfloat_flag_invalid )
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into a 64-bit floating-point
+| NaN, and returns the bit pattern of this value as an unsigned integer.
+*----------------------------------------------------------------------------*/
+#define softfloat_commonNaNToF64UI( aPtr ) ((uint_fast64_t) defaultNaNF64UI)
+
+/*----------------------------------------------------------------------------
+| Interpreting `uiA' and `uiB' as the bit patterns of two 64-bit floating-
+| point values, at least one of which is a NaN, returns the bit pattern of
+| the combined NaN result.  If either `uiA' or `uiB' has the pattern of a
+| signaling NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+uint_fast64_t
+ softfloat_propagateNaNF64UI( uint_fast64_t uiA, uint_fast64_t uiB );
+
+/*----------------------------------------------------------------------------
+| The bit pattern for a default generated 80-bit extended floating-point NaN.
+*----------------------------------------------------------------------------*/
+#define defaultNaNExtF80UI64 0xFFFF
+#define defaultNaNExtF80UI0  UINT64_C( 0xFFFFFFFFFFFFFFFF )
+
+/*----------------------------------------------------------------------------
+| Returns true when the 80-bit unsigned integer formed from concatenating
+| 16-bit `uiA64' and 64-bit `uiA0' has the bit pattern of an 80-bit extended
+| floating-point signaling NaN.
+| Note:  This macro evaluates its arguments more than once.
+*----------------------------------------------------------------------------*/
+#define softfloat_isSigNaNExtF80UI( uiA64, uiA0 ) ((((uiA64) & 0x7FFF) == 0x7FFF) && ! ((uiA0) & UINT64_C( 0x4000000000000000 )) && ((uiA0) & UINT64_C( 0x3FFFFFFFFFFFFFFF )))
+
+#ifdef SOFTFLOAT_FAST_INT64
+
+/*----------------------------------------------------------------------------
+| The following functions are needed only when `SOFTFLOAT_FAST_INT64' is
+| defined.
+*----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
+| has the bit pattern of an 80-bit extended floating-point NaN, converts
+| this NaN to the common NaN form, and stores the resulting common NaN at the
+| location pointed to by `zPtr'.  If the NaN is a signaling NaN, the invalid
+| exception is raised.
+*----------------------------------------------------------------------------*/
+#define softfloat_extF80UIToCommonNaN( uiA64, uiA0, zPtr ) if ( ! ((uiA0) & UINT64_C( 0x4000000000000000 )) ) softfloat_raiseFlags( softfloat_flag_invalid )
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
+| floating-point NaN, and returns the bit pattern of this value as an unsigned
+| integer.
+*----------------------------------------------------------------------------*/
+#if defined INLINE && ! defined softfloat_commonNaNToExtF80UI
+INLINE
+ struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr )
+{
+    struct uint128 uiZ;
+    uiZ.v64 = defaultNaNExtF80UI64;
+    uiZ.v0  = defaultNaNExtF80UI0;
+    return uiZ;
+}
+#else
+struct uint128 softfloat_commonNaNToExtF80UI( const struct commonNaN *aPtr );
+#endif
+
+/*----------------------------------------------------------------------------
+| Interpreting the unsigned integer formed from concatenating `uiA64' and
+| `uiA0' as an 80-bit extended floating-point value, and likewise interpreting
+| the unsigned integer formed from concatenating `uiB64' and `uiB0' as another
+| 80-bit extended floating-point value, and assuming at least on of these
+| floating-point values is a NaN, returns the bit pattern of the combined NaN
+| result.  If either original floating-point value is a signaling NaN, the
+| invalid exception is raised.
+*----------------------------------------------------------------------------*/
+struct uint128
+ softfloat_propagateNaNExtF80UI(
+     uint_fast16_t uiA64,
+     uint_fast64_t uiA0,
+     uint_fast16_t uiB64,
+     uint_fast64_t uiB0
+ );
+
+/*----------------------------------------------------------------------------
+| The bit pattern for a default generated 128-bit floating-point NaN.
+*----------------------------------------------------------------------------*/
+#define defaultNaNF128UI64 UINT64_C( 0xFFFFFFFFFFFFFFFF )
+#define defaultNaNF128UI0  UINT64_C( 0xFFFFFFFFFFFFFFFF )
+
+/*----------------------------------------------------------------------------
+| Returns true when the 128-bit unsigned integer formed from concatenating
+| 64-bit `uiA64' and 64-bit `uiA0' has the bit pattern of a 128-bit floating-
+| point signaling NaN.
+| Note:  This macro evaluates its arguments more than once.
+*----------------------------------------------------------------------------*/
+#define softfloat_isSigNaNF128UI( uiA64, uiA0 ) ((((uiA64) & UINT64_C( 0x7FFF800000000000 )) == UINT64_C( 0x7FFF000000000000 )) && ((uiA0) || ((uiA64) & UINT64_C( 0x00007FFFFFFFFFFF ))))
+
+/*----------------------------------------------------------------------------
+| Assuming the unsigned integer formed from concatenating `uiA64' and `uiA0'
+| has the bit pattern of a 128-bit floating-point NaN, converts this NaN to
+| the common NaN form, and stores the resulting common NaN at the location
+| pointed to by `zPtr'.  If the NaN is a signaling NaN, the invalid exception
+| is raised.
+*----------------------------------------------------------------------------*/
+#define softfloat_f128UIToCommonNaN( uiA64, uiA0, zPtr ) if ( ! ((uiA64) & UINT64_C( 0x0000800000000000 )) ) softfloat_raiseFlags( softfloat_flag_invalid )
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
+| NaN, and returns the bit pattern of this value as an unsigned integer.
+*----------------------------------------------------------------------------*/
+#if defined INLINE && ! defined softfloat_commonNaNToF128UI
+INLINE
+ struct uint128 softfloat_commonNaNToF128UI( const struct commonNaN *aPtr )
+{
+    struct uint128 uiZ;
+    uiZ.v64 = defaultNaNF128UI64;
+    uiZ.v0  = defaultNaNF128UI0;
+    return uiZ;
+}
+#else
+struct uint128 softfloat_commonNaNToF128UI( const struct commonNaN * );
+#endif
+
+/*----------------------------------------------------------------------------
+| Interpreting the unsigned integer formed from concatenating `uiA64' and
+| `uiA0' as a 128-bit floating-point value, and likewise interpreting the
+| unsigned integer formed from concatenating `uiB64' and `uiB0' as another
+| 128-bit floating-point value, and assuming at least on of these floating-
+| point values is a NaN, returns the bit pattern of the combined NaN result.
+| If either original floating-point value is a signaling NaN, the invalid
+| exception is raised.
+*----------------------------------------------------------------------------*/
+struct uint128
+ softfloat_propagateNaNF128UI(
+     uint_fast64_t uiA64,
+     uint_fast64_t uiA0,
+     uint_fast64_t uiB64,
+     uint_fast64_t uiB0
+ );
+
+#else
+
+/*----------------------------------------------------------------------------
+| The following functions are needed only when `SOFTFLOAT_FAST_INT64' is not
+| defined.
+*----------------------------------------------------------------------------*/
+
+/*----------------------------------------------------------------------------
+| Assuming the 80-bit extended floating-point value pointed to by `aSPtr' is
+| a NaN, converts this NaN to the common NaN form, and stores the resulting
+| common NaN at the location pointed to by `zPtr'.  If the NaN is a signaling
+| NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+#define softfloat_extF80MToCommonNaN( aSPtr, zPtr ) if ( ! ((aSPtr)->signif & UINT64_C( 0x4000000000000000 )) ) softfloat_raiseFlags( softfloat_flag_invalid )
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into an 80-bit extended
+| floating-point NaN, and stores this NaN at the location pointed to by
+| `zSPtr'.
+*----------------------------------------------------------------------------*/
+#if defined INLINE && ! defined softfloat_commonNaNToExtF80M
+INLINE
+ void
+  softfloat_commonNaNToExtF80M(
+      const struct commonNaN *aPtr, struct extFloat80M *zSPtr )
+{
+    zSPtr->signExp = defaultNaNExtF80UI64;
+    zSPtr->signif  = defaultNaNExtF80UI0;
+}
+#else
+void
+ softfloat_commonNaNToExtF80M(
+     const struct commonNaN *aPtr, struct extFloat80M *zSPtr );
+#endif
+
+/*----------------------------------------------------------------------------
+| Assuming at least one of the two 80-bit extended floating-point values
+| pointed to by `aSPtr' and `bSPtr' is a NaN, stores the combined NaN result
+| at the location pointed to by `zSPtr'.  If either original floating-point
+| value is a signaling NaN, the invalid exception is raised.
+*----------------------------------------------------------------------------*/
+void
+ softfloat_propagateNaNExtF80M(
+     const struct extFloat80M *aSPtr,
+     const struct extFloat80M *bSPtr,
+     struct extFloat80M *zSPtr
+ );
+
+/*----------------------------------------------------------------------------
+| The bit pattern for a default generated 128-bit floating-point NaN.
+*----------------------------------------------------------------------------*/
+#define defaultNaNF128UI96 0xFFFFFFFF
+#define defaultNaNF128UI64 0xFFFFFFFF
+#define defaultNaNF128UI32 0xFFFFFFFF
+#define defaultNaNF128UI0  0xFFFFFFFF
+
+/*----------------------------------------------------------------------------
+| Assuming the 128-bit floating-point value pointed to by `aWPtr' is a NaN,
+| converts this NaN to the common NaN form, and stores the resulting common
+| NaN at the location pointed to by `zPtr'.  If the NaN is a signaling NaN,
+| the invalid exception is raised.  Argument `aWPtr' points to an array of
+| four 32-bit elements that concatenate in the platform's normal endian order
+| to form a 128-bit floating-point value.
+*----------------------------------------------------------------------------*/
+#define softfloat_f128MToCommonNaN( aWPtr, zPtr ) if ( ! ((aWPtr)[indexWordHi( 4 )] & UINT64_C( 0x0000800000000000 )) ) softfloat_raiseFlags( softfloat_flag_invalid )
+
+/*----------------------------------------------------------------------------
+| Converts the common NaN pointed to by `aPtr' into a 128-bit floating-point
+| NaN, and stores this NaN at the location pointed to by `zWPtr'.  Argument
+| `zWPtr' points to an array of four 32-bit elements that concatenate in the
+| platform's normal endian order to form a 128-bit floating-point value.
+*----------------------------------------------------------------------------*/
+#if defined INLINE && ! defined softfloat_commonNaNToF128M
+INLINE
+ void
+  softfloat_commonNaNToF128M( const struct commonNaN *aPtr, uint32_t *zWPtr )
+{
+    zWPtr[indexWord( 4, 3 )] = defaultNaNF128UI96;
+    zWPtr[indexWord( 4, 2 )] = defaultNaNF128UI64;
+    zWPtr[indexWord( 4, 1 )] = defaultNaNF128UI32;
+    zWPtr[indexWord( 4, 0 )] = defaultNaNF128UI0;
+}
+#else
+void
+ softfloat_commonNaNToF128M( const struct commonNaN *aPtr, uint32_t *zWPtr );
+#endif
+
+/*----------------------------------------------------------------------------
+| Assuming at least one of the two 128-bit floating-point values pointed to by
+| `aWPtr' and `bWPtr' is a NaN, stores the combined NaN result at the location
+| pointed to by `zWPtr'.  If either original floating-point value is a
+| signaling NaN, the invalid exception is raised.  Each of `aWPtr', `bWPtr',
+| and `zWPtr' points to an array of four 32-bit elements that concatenate in
+| the platform's normal endian order to form a 128-bit floating-point value.
+*----------------------------------------------------------------------------*/
+void
+ softfloat_propagateNaNF128M(
+     const uint32_t *aWPtr, const uint32_t *bWPtr, uint32_t *zWPtr );
+
+#endif
+
+#endif
+