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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, 2015, 2016 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"
+
+extFloat80_t
+ softfloat_normRoundPackToExtF80(
+ bool sign,
+ int_fast32_t exp,
+ uint_fast64_t sig,
+ uint_fast64_t sigExtra,
+ uint_fast8_t roundingPrecision
+ SOFTFLOAT_STATE_DECL_COMMA
+ )
+{
+ int_fast8_t shiftDist;
+ struct uint128 sig128;
+
+ if ( ! sig ) {
+ exp -= 64;
+ sig = sigExtra;
+ sigExtra = 0;
+ }
+ shiftDist = softfloat_countLeadingZeros64( sig );
+ exp -= shiftDist;
+ if ( shiftDist ) {
+ sig128 = softfloat_shortShiftLeft128( sig, sigExtra, shiftDist );
+ sig = sig128.v64;
+ sigExtra = sig128.v0;
+ }
+ return
+ softfloat_roundPackToExtF80(
+ sign, exp, sig, sigExtra, roundingPrecision SOFTFLOAT_STATE_ARG_COMMA );
+
+}
+