Start moving towards reset being just another style of interrupt.

Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>

src/Processor.cpp

@@ -5,24 +5,30 @@ EightBit::Processor::Processor(Bus& bus)
 : m_bus(bus) {
 }
 
-void EightBit::Processor::reset() {
-	if (lowered(POWER()))
-		throw std::logic_error("POWER cannot be low");
+void EightBit::Processor::powerOn() {
+	raise(RESET());
+	raise(HALT());
 	raise(INT());
 	raise(NMI());
+	raise(POWER());
+}
+
+void EightBit::Processor::handleRESET() {
 	raise(RESET());
 	PC() = 0;
 }
 
+void EightBit::Processor::handleNMI() {
+	raise(NMI());
+}
+
+void EightBit::Processor::handleINT() {
+	raise(INT());
+}
+
 int EightBit::Processor::run(const int limit) {
 	int current = 0;
 	while (LIKELY(powered()) && current < limit)
-		current += singleStep();
+		current += step();
 	return current;
 }
-
-int EightBit::Processor::singleStep() {
-	if (UNLIKELY(lowered(RESET())))
-		reset();
-	return step();
-}