/*
* Operator.java - This file is part of the Jakstab project.
* Copyright 2007-2015 Johannes Kinder <jk@jakstab.org>
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code 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
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, see <http://www.gnu.org/licenses/>.
*/
package org.jakstab.rtl.expressions;
/**
* Supported operators in our RTL. GT and GE are replaced by LT and LE,
* MINUS by PLUS(NEG) and NEQ by NOT(EQ).
*
* @author Johannes Kinder
*/
public enum Operator {
UNKNOWN,
// Operators for changing bitwidth
CAST,
SIGN_EXTEND("sign_extend"),
ZERO_FILL("zero_fill"),
FSIZE,
// Comparison
EQUAL("=="),
LESS("<"), // Signed
LESS_OR_EQUAL("<="), // Signed
UNSIGNED_LESS("u<"),
UNSIGNED_LESS_OR_EQUAL("u<="),
// Unary operators
NOT("!"),
NEG("-"),
// Associative commutative bitwise arithmetic operators
AND("&"),
OR("|"),
XOR("^"),
PLUS("+"),
MUL("*"),
FMUL,
FDIV,
// Other bitwise arithmetic operators
DIV,
MOD,
POWER_OF,
// Bitwise shift operations
SHR(">>>"),
SAR(">>"), /* Shift right with sign extension */
SHL("<<"),
ROL,
ROR,
ROLC,
RORC /* Rotate with carry */
;
private String stringRep;
private Operator() {
this.stringRep = this.name();
}
private Operator(String stringRep) {
this.stringRep = stringRep;
}
public String toString() {
return stringRep;
}
}