/*
* Simbler - Where Assembly becomes easy. Interactive and very easy, Simbler is
* a great tool to help students and interested people to learn and simulate
* the basics of Assembly Language.
*
* Copyright (C) 2011 Guilherme de Oliveira Martins
* http://www.gmartins.com.br - guilherme@gmartins.com.br
*
* 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
* (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, see <http://www.gnu.org/licenses/>.
*/
package br.com.gmartins.simbler.mnemonics;
import br.com.gmartins.simbler.components.MainPanel;
import br.com.gmartins.simbler.helpers.RegexMatcher;
import br.com.gmartins.simbler.instructions.Instruction;
import br.com.gmartins.simbler.instructions.value.Value;
import br.com.gmartins.simbler.mnemonics.helpers.Commands;
import br.com.gmartins.simbler.mnemonics.helpers.MnemonicsMap;
/**
*
* @author Guilherme
*/
public class LOAD extends Commands {
public LOAD(MainPanel main) {
super(main);
}
@Override
public void execute() {
final String workingCommand = "LOAD";
String regex0 = MnemonicsMap.getInstance().getMnemonicsMap().get(workingCommand).getRegexList().get(0).getRegex(true);
String regex1 = MnemonicsMap.getInstance().getMnemonicsMap().get(workingCommand).getRegexList().get(1).getRegex(true);
String regex2 = MnemonicsMap.getInstance().getMnemonicsMap().get(workingCommand).getRegexList().get(2).getRegex(true);
String regex3 = MnemonicsMap.getInstance().getMnemonicsMap().get(workingCommand).getRegexList().get(3).getRegex(true);
// MATCHES LOAD @10, LOAD @500
// REGEX[0] - "LOAD @[0-9]{1,9}"
// MATCHES LOAD @AX, LOAD @DX
// REGEX[1] - "LOAD @[ABCD]X"
// MATCHES LOAD 10, LOAD 500
// REGEX[2] - "LOAD [0-9]{1,9}
// MATCHES LOAD AX, LOAD DX
// REGEX[3] - "LOAD [ABCD]X"
if (RegexMatcher.matches(regex0, getCurrentInstruction().getLineCommand())) {
// Pega o comando na posição definida pelo numero após o @
Instruction dest = getInstructionAt(getCurrentInstruction().getValue());
// Define em AX o novo valor.
getRegisters().getAx().setValue(dest.getValue());
} else if (RegexMatcher.matches(regex1, getCurrentInstruction().getLineCommand())) {
// Pega o comando na posição definida no registrador especificado.
Instruction dest = getInstructionAt(getCurrentInstruction().getRegister().toInteger());
// Define o novo valor no AX
getRegisters().getAx().setValue(dest.getValue());
} else if (RegexMatcher.matches(regex2, getCurrentInstruction().getLineCommand())) {
// Define o novo valor em AX
getMainPanel().getRegisterManager().getAx().setValue(getCurrentInstruction().getValue());
} else if (RegexMatcher.matches(regex3, getCurrentInstruction().getLineCommand())) {
// Pega o valor do registrador definido no comando
Value value = getCurrentInstruction().getRegister().getValue();
// Define o novo valor em AX
getRegisters().getAx().setValue(value);
}
}
}