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-rw-r--r--src/libs/softfloat-3e/source/s_remStepMBy32.c86
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diff --git a/src/libs/softfloat-3e/source/s_remStepMBy32.c b/src/libs/softfloat-3e/source/s_remStepMBy32.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, 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 <stdint.h>
+#include "platform.h"
+#include "primitiveTypes.h"
+
+#ifndef softfloat_remStepMBy32
+
+void
+ softfloat_remStepMBy32(
+ uint_fast8_t size_words,
+ const uint32_t *remPtr,
+ uint_fast8_t dist,
+ const uint32_t *bPtr,
+ uint32_t q,
+ uint32_t *zPtr
+ )
+{
+ unsigned int index, lastIndex;
+ uint64_t dwordProd;
+ uint32_t wordRem, wordShiftedRem, wordProd;
+ uint_fast8_t uNegDist, borrow;
+
+ index = indexWordLo( size_words );
+ lastIndex = indexWordHi( size_words );
+ dwordProd = (uint64_t) bPtr[index] * q;
+ wordRem = remPtr[index];
+ wordShiftedRem = wordRem<<dist;
+ wordProd = dwordProd;
+ zPtr[index] = wordShiftedRem - wordProd;
+ if ( index != lastIndex ) {
+ uNegDist = -dist;
+ borrow = (wordShiftedRem < wordProd);
+ for (;;) {
+ wordShiftedRem = wordRem>>(uNegDist & 31);
+ index += wordIncr;
+ dwordProd = (uint64_t) bPtr[index] * q + (dwordProd>>32);
+ wordRem = remPtr[index];
+ wordShiftedRem |= wordRem<<dist;
+ wordProd = dwordProd;
+ zPtr[index] = wordShiftedRem - wordProd - borrow;
+ if ( index == lastIndex ) break;
+ borrow =
+ borrow ? (wordShiftedRem <= wordProd)
+ : (wordShiftedRem < wordProd);
+ }
+ }
+
+}
+
+#endif
+