/** write */
public void write(SequentialInstruction currentInstruction) {
switch (currentInstruction.getAddressingMode()) {
case Globals.IMMEDIATE_ADDRESSING:
outputTape.addElement(currentInstruction.getAddress());
break;
case Globals.INDIRECT_ADDRESSING:
outputTape.addElement(
memoryRegister.getRegister(
memoryRegister.getRegister(currentInstruction.getAddress())));
break;
case Globals.REFERENCE_ADDRESSING:
outputTape.addElement(memoryRegister.getRegister(currentInstruction.getAddress()));
break;
default:
break;
}
currentInstructionIndex++;
}
/** jgtz */
public void jgtz(JumpInstruction currentInstruction) {
if (memoryRegister.getAccumulator() > 0) {
if (program.checkExistLabel(currentInstruction.getLabel()))
setCurrentInstructionIndex(program.getLabelIndex(currentInstruction.getLabel()));
else {
halt();
System.out.println(
"Error. Line: "
+ (currentInstructionIndex + 1)
+ " Invalid label: "
+ currentInstruction.getName()
+ " "
+ currentInstruction.getLabel());
}
} else currentInstructionIndex++;
}
/** div */
public void div(SequentialInstruction currentInstruction) {
switch (currentInstruction.getAddressingMode()) {
case Globals.IMMEDIATE_ADDRESSING:
memoryRegister.setAccumulator(
memoryRegister.getAccumulator() / currentInstruction.getAddress());
break;
case Globals.REFERENCE_ADDRESSING:
memoryRegister.setAccumulator(
memoryRegister.getAccumulator()
/ memoryRegister.getRegister(currentInstruction.getAddress()));
break;
case Globals.INDIRECT_ADDRESSING:
memoryRegister.setAccumulator(
memoryRegister.getRegister(currentInstruction.getAddress())
/ memoryRegister.getRegister(
memoryRegister.getAccumulator())); // asi o al contrario?
break;
default:
break;
}
currentInstructionIndex++;
}
/** read */
public void read(SequentialInstruction currentInstruction) {
switch (currentInstruction.getAddressingMode()) {
case Globals.IMMEDIATE_ADDRESSING:
System.out.println(
"Error. Line: "
+ (currentInstructionIndex + 1)
+ "Invalid addressing: "
+ currentInstruction.getName()
+ " ="
+ currentInstruction.getAddress());
break;
case Globals.INDIRECT_ADDRESSING:
int aux =
memoryRegister.getRegister(currentInstruction.getAddress())
+ 1
- memoryRegister.getSize();
if (checkMemoryRegisterOverflow(
memoryRegister.getRegister(currentInstruction.getAddress()))) {
for (int i = 0; i < aux; i++) memoryRegister.addRegister(0);
}
memoryRegister.setRegister(
memoryRegister.getRegister(currentInstruction.getAddress()),
inputTape.getCurrentPointerElement());
inputTape.incrementPointer();
break;
case Globals.REFERENCE_ADDRESSING:
int aux2 = currentInstruction.getAddress() + 1 - memoryRegister.getSize();
if (checkMemoryRegisterOverflow(currentInstruction.getAddress())) {
for (int i = 0; i < aux2; i++) memoryRegister.addRegister(0);
}
memoryRegister.setRegister(
currentInstruction.getAddress(), inputTape.getCurrentPointerElement());
inputTape.incrementPointer();
break;
default:
break;
}
currentInstructionIndex++;
}
/** debugProgram */
public void debugProgram(InputTape inputTape, Program program, OutputTape outputTape) {
setInputTape(inputTape);
setOutputTape(outputTape);
loadProgram(program);
this.outputTape.clear();
currentInstructionIndex = 0;
Scanner next = new Scanner(System.in);
System.out.println(
"- Pulse 'e' para parar la ejecución o cualquier otra tecla para continuar la traza.");
while (!isStateHalt()) {
showCurrentInstructionInformation();
runInstruction();
memoryRegister.showMemoryRegister();
System.out.println("---------------------");
String userOption = next.next();
if (userOption.equals("e")) {
halt();
System.out.println("\nEjecucion interrumpida porel usuario.");
} else continue;
}
setStateHalt(false);
}
/** checkMemoryRegisterOverflow */
public boolean checkMemoryRegisterOverflow(int addressDirection) {
if (addressDirection + 1 - memoryRegister.getSize() > 0) return true;
else return false;
}
