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diff --git a/source/extF80M_eq_signaling.c b/source/extF80M_eq_signaling.c
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+++ b/source/extF80M_eq_signaling.c
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+
+/*============================================================================
+
+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 "internals.h"
+#include "softfloat.h"
+
+#ifdef SOFTFLOAT_FAST_INT64
+
+bool extF80M_eq_signaling( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
+{
+
+    return extF80_eq_signaling( *aPtr, *bPtr );
+
+}
+
+#else
+
+bool extF80M_eq_signaling( const extFloat80_t *aPtr, const extFloat80_t *bPtr )
+{
+    const struct extFloat80M *aSPtr, *bSPtr;
+    uint_fast16_t uiA64;
+    uint64_t uiA0;
+    uint_fast16_t uiB64;
+    uint64_t uiB0;
+
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    aSPtr = (const struct extFloat80M *) aPtr;
+    bSPtr = (const struct extFloat80M *) bPtr;
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    uiA64 = aSPtr->signExp;
+    uiA0  = aSPtr->signif;
+    uiB64 = bSPtr->signExp;
+    uiB0  = bSPtr->signif;
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( isNaNExtF80UI( uiA64, uiA0 ) || isNaNExtF80UI( uiB64, uiB0 ) ) {
+        softfloat_raiseFlags( softfloat_flag_invalid );
+        return false;
+    }
+    /*------------------------------------------------------------------------
+    *------------------------------------------------------------------------*/
+    if ( uiA0 == uiB0 ) {
+        return (uiA64 == uiB64) || ! uiA0;
+    } else {
+        if ( ! ((uiA0 & uiB0) & UINT64_C( 0x8000000000000000 )) ) {
+            return ! softfloat_compareNonnormExtF80M( aSPtr, bSPtr );
+        }
+        return false;
+    }
+
+}
+
+#endif
+