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
}