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+
+/*============================================================================
+
+This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
+Package, Release 3e, by John R. Hauser.
+
+Copyright 2011, 2012, 2013, 2014 The Regents of the University of California.
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+ 1. Redistributions of source code must retain the above copyright notice,
+ this list of conditions, and the following disclaimer.
+
+ 2. Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions, and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ 3. Neither the name of the University nor the names of its contributors may
+ be used to endorse or promote products derived from this software without
+ specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS IS", AND ANY
+EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, ARE
+DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY
+DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+=============================================================================*/
+
+#include <stdbool.h>
+#include <stdint.h>
+#include "platform.h"
+#include "internals.h"
+#include "specialize.h"
+#include "softfloat.h"
+
+#ifdef SOFTFLOAT_FAST_INT64
+
+void extF80M_to_f128M( const extFloat80_t *aPtr, float128_t *zPtr )
+{
+
+ *zPtr = extF80_to_f128( *aPtr );
+
+}
+
+#else
+
+void extF80M_to_f128M( const extFloat80_t *aPtr, float128_t *zPtr )
+{
+ const struct extFloat80M *aSPtr;
+ uint32_t *zWPtr;
+ uint_fast16_t uiA64;
+ bool sign;
+ int32_t exp;
+ uint64_t sig;
+ struct commonNaN commonNaN;
+ uint32_t uiZ96;
+
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ aSPtr = (const struct extFloat80M *) aPtr;
+ zWPtr = (uint32_t *) zPtr;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ uiA64 = aSPtr->signExp;
+ sign = signExtF80UI64( uiA64 );
+ exp = expExtF80UI64( uiA64 );
+ sig = aSPtr->signif;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ zWPtr[indexWord( 4, 0 )] = 0;
+ if ( exp == 0x7FFF ) {
+ if ( sig & UINT64_C( 0x7FFFFFFFFFFFFFFF ) ) {
+ softfloat_extF80MToCommonNaN( aSPtr, &commonNaN );
+ softfloat_commonNaNToF128M( &commonNaN, zWPtr );
+ return;
+ }
+ uiZ96 = packToF128UI96( sign, 0x7FFF, 0 );
+ goto uiZ;
+ }
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ if ( exp ) --exp;
+ if ( ! (sig & UINT64_C( 0x8000000000000000 )) ) {
+ if ( ! sig ) {
+ uiZ96 = packToF128UI96( sign, 0, 0 );
+ goto uiZ;
+ }
+ exp += softfloat_normExtF80SigM( &sig );
+ }
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ zWPtr[indexWord( 4, 1 )] = (uint32_t) sig<<17;
+ sig >>= 15;
+ zWPtr[indexWord( 4, 2 )] = sig;
+ if ( exp < 0 ) {
+ zWPtr[indexWordHi( 4 )] = sig>>32;
+ softfloat_shiftRight96M(
+ &zWPtr[indexMultiwordHi( 4, 3 )],
+ -exp,
+ &zWPtr[indexMultiwordHi( 4, 3 )]
+ );
+ exp = 0;
+ sig = (uint64_t) zWPtr[indexWordHi( 4 )]<<32;
+ }
+ zWPtr[indexWordHi( 4 )] = packToF128UI96( sign, exp, sig>>32 );
+ return;
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ uiZ:
+ zWPtr[indexWord( 4, 3 )] = uiZ96;
+ zWPtr[indexWord( 4, 2 )] = 0;
+ zWPtr[indexWord( 4, 1 )] = 0;
+
+}
+
+#endif
+