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diff --git a/src/libs/softfloat-3e/source/8086/s_propagateNaNExtF80UI.c b/src/libs/softfloat-3e/source/8086/s_propagateNaNExtF80UI.c
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+++ b/src/libs/softfloat-3e/source/8086/s_propagateNaNExtF80UI.c
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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, 2018 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"
+
+/*----------------------------------------------------------------------------
+| 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
+ SOFTFLOAT_STATE_DECL_COMMA
+ )
+{
+ bool isSigNaNA, isSigNaNB;
+ uint_fast64_t uiNonsigA0, uiNonsigB0;
+ uint_fast16_t uiMagA64, uiMagB64;
+ struct uint128 uiZ;
+
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ isSigNaNA = softfloat_isSigNaNExtF80UI( uiA64, uiA0 );
+ isSigNaNB = softfloat_isSigNaNExtF80UI( uiB64, uiB0 );
+ /*------------------------------------------------------------------------
+ | Make NaNs non-signaling.
+ *------------------------------------------------------------------------*/
+ uiNonsigA0 = uiA0 | UINT64_C( 0xC000000000000000 );
+ uiNonsigB0 = uiB0 | UINT64_C( 0xC000000000000000 );
+ /*------------------------------------------------------------------------
+ *------------------------------------------------------------------------*/
+ if ( isSigNaNA | isSigNaNB ) {
+ softfloat_raiseFlags( softfloat_flag_invalid SOFTFLOAT_STATE_ARG_COMMA );
+ if ( isSigNaNA ) {
+ if ( isSigNaNB ) goto returnLargerMag;
+ if ( isNaNExtF80UI( uiB64, uiB0 ) ) goto returnB;
+ goto returnA;
+ } else {
+ if ( isNaNExtF80UI( uiA64, uiA0 ) ) goto returnA;
+ goto returnB;
+ }
+ }
+ returnLargerMag:
+ uiMagA64 = uiA64 & 0x7FFF;
+ uiMagB64 = uiB64 & 0x7FFF;
+ if ( uiMagA64 < uiMagB64 ) goto returnB;
+ if ( uiMagB64 < uiMagA64 ) goto returnA;
+ if ( uiA0 < uiB0 ) goto returnB;
+ if ( uiB0 < uiA0 ) goto returnA;
+ if ( uiA64 < uiB64 ) goto returnA;
+ returnB:
+ uiZ.v64 = uiB64;
+ uiZ.v0 = uiNonsigB0;
+ return uiZ;
+ returnA:
+ uiZ.v64 = uiA64;
+ uiZ.v0 = uiNonsigA0;
+ return uiZ;
+
+}
+