Add CPU

gb/cpu.go

@@ -0,0 +1,21 @@
+package gb
+
+type Cpu struct {
+	A     uint8
+	Flags uint8
+	BC    uint16
+	DE    uint16
+	HL    uint16
+	SP    uint16
+	PC    uint16
+}
+
+func Reset() Cpu {
+	cpu := Cpu{}
+
+	return cpu
+}
+
+func Tick(cpu *Cpu) {
+	cpu.PC++
+}