irq is uint8_t

CPU.h

@@ -12,7 +12,7 @@ class CPU: public Checkpointable {
 public:
 	virtual void run(unsigned instructions) =0;
 	virtual void reset() =0;
-	virtual void raise(int level) =0;
+	virtual void raise(uint8_t level) =0;
 	virtual char *status(char *buf, size_t n, bool hdr) =0;
 
 	virtual void checkpoint(Stream &s) = 0;

i8080.cpp

@@ -24,7 +24,7 @@ void i8080::reset() {
 	_halted = false;
 }
 
-void i8080::raise(int level) {
+void i8080::raise(uint8_t level) {
 	if (flags.I) {
 		flags.I = 0;
 		_irq_pending = 0;

i8080.h

@@ -13,7 +13,7 @@ public:
 
 	void run(unsigned);
 	void reset();
-	void raise(int);
+	void raise(uint8_t);
 	char *status(char *buf, size_t n, bool hdr=false);
 
 	void checkpoint(Stream &);
@@ -59,7 +59,7 @@ private:
 		} flags;
 		uint8_t SR;
 	};
-	int _irq_pending;
+	uint8_t _irq_pending;
 	PortDevice<i8080> *_ports;
 
 	void _op(uint8_t op);

r6502.cpp

@@ -76,7 +76,7 @@ void r6502::restore(Stream &s)
 #endif
 }
 
-void r6502::raise(int level) {
+void r6502::raise(uint8_t level) {
 	if (level < 0)
 		nmi();
 	else if (!P.bits.I)

r6502.h

@@ -8,7 +8,7 @@ class Stream;
 
 class r6502: public CPU {
 public:
-	void raise(int);
+	void raise(uint8_t);
 	void reset();
 	void run(unsigned);
 	char *status(char *buf, size_t n, bool hdr=false);