BranchPredictorType.java

/*******************************************************************************
 * openDLX - A DLX/MIPS processor simulator.
 * Copyright (C) 2013 The openDLX project, University of Augsburg, Germany
 * Project URL: <https://sourceforge.net/projects/opendlx>
 * Development branch: <https://github.com/smetzlaff/openDLX>
 *
 *
 * 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 3 of the License, or
 * 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, see <LICENSE>. If not, see
 * <http://www.gnu.org/licenses/>.
 ******************************************************************************/
package openDLX.datatypes;

/**
 * Enumeration of all possible branch predictor types
 * - S for static predictors 
 * - D for dynamic predictors
 */
public enum BranchPredictorType
{
	S_ALWAYS_NOT_TAKEN,
	S_ALWAYS_TAKEN,
	S_BACKWARD_TAKEN,
	D_1BIT,
	D_2BIT_SATURATION,
	D_2BIT_HYSTERESIS,
	UNKNOWN;
	
	public String toGuiString()
	{
		switch(this)
		{
		case S_ALWAYS_NOT_TAKEN:
			return "Static, Always Not Taken";
		case S_ALWAYS_TAKEN:
			return "Static, Always Taken";
		case S_BACKWARD_TAKEN:
			return "Static, Backward Always Taken";
		case D_1BIT:
			return "Dynammic 1-Bit Predictor";
		case D_2BIT_SATURATION:
			return "Dynammic 2-Bit Saturation Predictor";
		case D_2BIT_HYSTERESIS:
			return "Dynammic 2-Bit Hysteresis Predictor";
		case UNKNOWN:
			return "None";
		default:
			return "Unknown Predictor";
		}
	}
}