RESET

bus.cpp

@@ -50,6 +50,11 @@ void bus::clearmem()
 	m -> reset();
 }
 
+void bus::init()
+{
+	MMR0 = 0;
+}
+
 uint16_t bus::read(const uint16_t a, const bool word_mode, const bool use_prev)
 {
 	uint16_t temp = 0;

bus.h

@@ -51,6 +51,8 @@ public:
 
 	tty *getTty() { return this->tty_; }
 
+	void init();  // invoked by 'RESET' command
+
 	uint16_t read(const uint16_t a, const bool word_mode, const bool use_prev=false);
 	uint16_t readByte(const uint16_t a) { return read(a, true); }
 	uint16_t readWord(const uint16_t a);

cpu.cpp

@@ -30,7 +30,7 @@ void cpu::reset()
 	pc = 0;
 	psw = 7 << 5;
 	fpsr = 0;
-	runMode = resetFlag = false;
+	runMode = false;
 }
 
 void cpu::setDisassemble(const bool state)
@@ -1145,7 +1145,7 @@ bool cpu::misc_operations(const uint16_t instr)
 			return true;
 
 		case 0b0000000000000101: // RESET
-			resetFlag = true;
+			b->init();
 			return true;
 	}
 

cpu.h

@@ -19,7 +19,6 @@ private:
 	uint16_t psw   { 0 };
 	uint16_t fpsr  { 0 };
 	uint16_t stackLimitRegister { 0 };
-	bool resetFlag   { false };
 	bool runMode     { false };
 	bool emulateMFPT { false };
 
@@ -61,7 +60,6 @@ public:
 	void reset();
 
 	void step();
-	void resetReset() { resetFlag = false; }
 
 	void pushStack(const uint16_t v);
 	uint16_t popStack();