WIP

gb/cpu.go

@@ -0,0 +1,45 @@
+package gb
+
+const CPUFrequency = 4194304
+
+type Registers struct {
+	A  byte
+	F  byte
+	B  byte
+	C  byte
+	D  byte
+	E  byte
+	H  byte
+	L  byte
+	PC uint16
+	SP uint16
+}
+
+type CPU struct {
+	Regs                Registers
+	FetchedData         uint16
+	MemoryDestination   uint16
+	DestinationIsMemory bool
+	CurrentOPcode       byte
+	// CurrentInstruction     *Instruction
+	Halted                 bool
+	Stepping               bool
+	InterruptMasterEnabled bool
+}
+
+func NewCPU() *CPU {
+	cpu := CPU{}
+	cpu.Regs = Registers{}
+	cpu.Stepping = true
+
+	return &cpu
+}
+
+func (cpu *CPU) Step() bool {
+	if cpu.Stepping {
+		cpu.Stepping = false
+		return true
+	}
+
+	return false
+}