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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"
+
+#ifndef softfloat_shiftRightM
+
+#define softfloat_shiftRightM softfloat_shiftRightM
+#include "primitives.h"
+
+void
+ softfloat_shiftRightM(
+ uint_fast8_t size_words,
+ const uint32_t *aPtr,
+ uint32_t dist,
+ uint32_t *zPtr
+ )
+{
+ uint32_t wordDist;
+ uint_fast8_t innerDist;
+ uint32_t *destPtr;
+ uint_fast8_t i;
+
+ wordDist = dist>>5;
+ if ( wordDist < size_words ) {
+ aPtr += indexMultiwordHiBut( size_words, wordDist );
+ innerDist = dist & 31;
+ if ( innerDist ) {
+ softfloat_shortShiftRightM(
+ size_words - wordDist,
+ aPtr,
+ innerDist,
+ zPtr + indexMultiwordLoBut( size_words, wordDist )
+ );
+ if ( ! wordDist ) return;
+ } else {
+ aPtr += indexWordLo( size_words - wordDist );
+ destPtr = zPtr + indexWordLo( size_words );
+ for ( i = size_words - wordDist; i; --i ) {
+ *destPtr = *aPtr;
+ aPtr += wordIncr;
+ destPtr += wordIncr;
+ }
+ }
+ zPtr += indexMultiwordHi( size_words, wordDist );
+ } else {
+ wordDist = size_words;
+ }
+ do {
+ *zPtr++ = 0;
+ --wordDist;
+ } while ( wordDist );
+
+}
+
+#endif
+