ACStone/053.mul.c at master · ArchC/ACStone · GitHub

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/**
 * @file      053.mul.c
 * @author    The ArchC Team
 *            http://www.archc.org/
 *
 *            Computer Systems Laboratory (LSC)
 *            IC-UNICAMP
 *            http://www.lsc.ic.unicamp.br
 *
 * @version   1.0
 * @date      Mon, 19 Jun 2006 15:33:21 -0300
 * @brief     It is a simple main function that uses signed short int multiplication.
 *
 * @attention Copyright (C) 2002-2006 --- The ArchC Team
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 *
 */

/* The file begin.h is included if compiler flag -DBEGINCODE is used */
#ifdef BEGINCODE
#include "begin.h"
#endif

int main() {

  signed short int a,b;
  signed int c;

  a=0x0002;
  b=0x0004;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be 8 */ c=0;

  a=0xFFFF;
  b=0xFFFF;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be 1 */ c=0;

  a=0xFFFF;
  b=0x0001;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be -1 */ c=0;

  a=0xFFFF;
  b=0x000A;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be -10 */ c=0;

  a=0xFFFE;
  b=0xFFFC;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be 8 */ c=0;

  a=0x000A;
  b=0x000B;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be 110 */ c=0;

  a=0xFFF6;
  b=0x000B;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be -110 */ c=0;

  a=0xF000;
  b=0xF001;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be 16773120 */ c=0;

  a=0x5555;
  b=0x3333;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be 286322415 */ c=0;

  a=0x5353;
  b=0x8000;
  c=(signed int)(a)*(signed int)(b);
  /* Before c must be -698974208 */ c=0;

  return 0;
  /* Return 0 only */
}

/* The file end.h is included if compiler flag -DENDCODE is used */
#ifdef ENDCODE
#include "end.h"
#endif