com.packenius.datadivider.javaclass.instr.GOTO Maven / Gradle / Ivy

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package com.packenius.datadivider.javaclass.instr;

import com.packenius.dumpapi.DumpReader;

/**
 * JVM-Instruktion.
 * @author Christian Packenius, 2016
 */
public class GOTO extends JvmInstruction {
    /**
     * Wird zum Program Counter hinzu gezählt (und damit verzweigt).
     */
    public final short branchDelta;

    /**
     * Konstruktor.
     */
    public GOTO(int address, DumpReader reader) {
        super(address, reader);
        branchDelta = reader.readBigEndianS2("Branch delta: ##DEC##");
        setEndAddress(reader);
    }

    @Override
    public String toString() {
        int adr = address + branchDelta;
        if (branchDelta < 0) {
            return "goto " + adr + "  // " + branchDelta;
        }
        return "goto " + adr + "  // +" + branchDelta;
    }
}