text: 
  /*============================================================================
  
  This C source file is part of the SoftFloat IEEE Floating-Point Arithmetic
  Package, Release 3, by John R. Hauser.
  
  Copyright 2011, 2012, 2013, 2014, 2015 The Regents of the University of
  California (Regents).  All Rights Reserved.  Redistribution and use in source
  and binary forms, with or without modification, are permitted provided that
  the following conditions are met:
  
  Redistributions of source code must retain the above copyright notice,
  this list of conditions, and the following two paragraphs of disclaimer.
  Redistributions in binary form must reproduce the above copyright notice,
  this list of conditions, and the following two paragraphs of disclaimer in the
  documentation and/or other materials provided with the distribution.  Neither
  the name of the Regents nor the names of its contributors may be used to
  endorse or promote products derived from this software without specific prior
  written permission.
  
  IN NO EVENT SHALL REGENTS BE LIABLE TO ANY PARTY FOR DIRECT, INDIRECT,
  SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING
  OUT OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF REGENTS HAS
  BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  REGENTS SPECIFICALLY DISCLAIMS ANY WARRANTIES, INCLUDING, BUT NOT LIMITED
  TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  PURPOSE.  THE SOFTWARE AND ACCOMPANYING DOCUMENTATION, IF ANY, PROVIDED
  HEREUNDER IS PROVIDED "AS IS".  REGENTS HAS NO OBLIGATION TO PROVIDE
  MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
  
  =============================================================================*/
  
  #include <stdint.h>
  #include "platform.h"
  #include "primitiveTypes.h"
  
  #ifndef softfloat_addCarryM
  
  uint_fast8_t
   softfloat_addCarryM(
       uint_fast8_t size_words,
       const uint32_t *aPtr,
       const uint32_t *bPtr,
       uint_fast8_t carry,
       uint32_t *zPtr
   )
  {
      unsigned int index, lastIndex;
      uint32_t wordA, wordZ;
  
      index = indexWordLo( size_words );
      lastIndex = indexWordHi( size_words );
      for (;;) {
          wordA = aPtr[index];
          wordZ = wordA + bPtr[index] + carry;
          zPtr[index] = wordZ;
          carry = carry ? (wordZ <= wordA) : (wordZ < wordA);
          if ( index == lastIndex ) break;
          index += wordIncr;
      }
      return carry;
  
  }
  
  #endif
  
  