public void Execute(Machine machine)
{
// something's wrong if we exceed this pointer
int pointerMax = actions.Count - 1;
// with no actions to perform, Pointer would start outside pointerMax
if (pointerMax < 0)
{
return;
}
// begin execution
while (machine.Pointer >= 0)
{
// assert that pointer remains within code
if (machine.Pointer > pointerMax)
{
throw new ExecuteException("Execution has left the written code, are you missing a halt or return?");
}
// perform, and move pointer if necessary
IExecutorAction action = actions[machine.Pointer];
bool advancePointer = action.Perform(machine);
if (advancePointer)
{
machine.Pointer++;
}
}
}
public void ParseAndAddAction(string lval, string rval)
{
IExecutorAction action = parseAction(lval, rval);
// some commands, like "label", do not have an associated action
if (action != null)
{
actions.Add(action);
}
}
