content: package mars.mips.instructions;
  
  /*
   * Copyright (c) 2003-2006, Pete Sanderson and Kenneth Vollmar
   *
   * Developed by Pete Sanderson (psanderson@otterbein.edu) and Kenneth Vollmar
   * (kenvollmar@missouristate.edu)
   *
   * Permission is hereby granted, free of charge, to any person obtaining a copy
   * of this software and associated documentation files (the "Software"), to deal
   * in the Software without restriction, including without limitation the rights
   * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   * copies of the Software, and to permit persons to whom the Software is
   * furnished to do so, subject to the following conditions:
   *
   * The above copyright notice and this permission notice shall be included in
   * all copies or substantial portions of the Software.
   *
   * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
   * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
   * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
   * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
   * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
   * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
   * SOFTWARE.
   *
   * (MIT license, http://www.opensource.org/licenses/mit-license.html)
   */
  
  /**
   * These are the MIPS-defined formats of basic machine instructions. The
   * R-format indicates the instruction works only with registers. The I-format
   * indicates the instruction works with an immediate value (e.g. constant). The
   * J-format indicates this is a Jump instruction. The I-branch-format is defined
   * by me, not MIPS, to to indicate this is a Branch instruction, specifically to
   * distinguish immediate values used as target addresses.
   *
   * @author Pete Sanderson
   * @version August 2003
   */
  public class BasicInstructionFormat {
  
  	public static final BasicInstructionFormat R_FORMAT = new BasicInstructionFormat();
  	public static final BasicInstructionFormat I_FORMAT = new BasicInstructionFormat();
  	public static final BasicInstructionFormat I_BRANCH_FORMAT = new BasicInstructionFormat();
  	public static final BasicInstructionFormat J_FORMAT = new BasicInstructionFormat();
  
  	// private default constructor prevents objects of this class other than those above.
  	private BasicInstructionFormat() {}
  }
  