public void Run()
{
while (_pc >= 0)
{
Fetch();
Decode();
Execute();
if (_interruptJump.Count > 0)
{
SoftwareInterruptRequest request = _interruptJump.OrderBy(i=>i.Priority).FirstOrDefault();
if (request != null && (_currentInterrupt == null || (_currentInterrupt.Priority < request.Priority)))
{
PushExecutionStack();
_interruptJump.Remove(request);
_currentInterrupt = request;
_pc = request.JumpAddress;
}
}
if (_pc == -1 && _interruptReturnAddress.Count > 0)
{
PopExecutionStack();
}
}
}
private void OnSoftwareInterruptTriggered(SoftwareInterruptRequest irq)
{
SoftwareInterruptTriggered.SafeTrigger(this, new InterruptEventArgs(irq));
}
private void PopExecutionStack()
{
_pc = _interruptReturnAddress.Pop();
_currentInterrupt = _interruptReturnStack.Pop();
}
