public int getVariable(AbstractToken tok) {
String name = labelName(tok);
Integer v = (Integer) constants.get(name);
if (v == null) {
Item.Label li = (Item.Label) labels.get(name);
if (li == null) ERROR.UnknownVariable(tok);
if (li.segment == programSegment && !useByteAddresses) return li.getByteAddress() >> 1;
else return li.getByteAddress();
} else return v.intValue();
}
public LegacyRegister getRegister(AbstractToken tok) {
String name = labelName(tok);
LegacyRegister reg = LegacyRegister.getRegisterByName(name);
if (reg == null) reg = (LegacyRegister) definitions.get(name);
if (reg == null) ERROR.UnknownRegister(tok);
return reg;
}
private void ioreg(String name, int offset) {
constants.put(name.toLowerCase(), new Integer(offset));
}
private void constant(String name, int value) {
constants.put(name.toLowerCase(), new Integer(value));
}
public void addRegisterName(String name, AbstractToken reg) {
LegacyRegister register = LegacyRegister.getRegisterByName(reg.image);
if (register == null) ERROR.UnknownRegister(reg);
definitions.put(labelName(name), register);
}
public void addVariable(String name, int value) {
constants.put(labelName(name), new Integer(value));
}
// <label>
public void addLabel(AbstractToken name) {
Item.Label li = new Item.Label(segment, name);
addItem(li);
labels.put(name.image.toLowerCase(), li);
}
