gb

type CPU struct {
	AF register
	BC register
	DE register
	HL register

	PC uint16
	SP register

	Divider int
}

type DebugFlags struct {
	// HideSprites turns off rendering of sprites to the display.
	HideSprites bool
	// HideBackground turns off rendering of background tiles to the display.
	HideBackground bool
	// OutputOpcodes will log the current opcode to the console on each tick.
	// This will slow down execution massively so is only used for debugging
	// issues with the emulation.
	OutputOpcodes bool
}

type Gameboy struct {
	Memory *Memory
	CPU    *CPU
	Sound  *apu.APU

	Debug           DebugFlags
	ExecutionPaused bool

	// PreparedData is a matrix of screen pixel data for a single frame which has
	// been fully rendered.
	PreparedData [160][144][3]uint8

	InputMask byte

	BGPalette     *cgbPalette
	SpritePalette *cgbPalette
	// contains filtered or unexported fields
}

type GameboyOption func(o *gameboyOptions)

type Memory struct {
	Cart    *cart.Cart
	HighRAM [0x100]byte
	// VRAM bank 1-2 data
	VRAM [0x4000]byte
	// Index of the current VRAM bank
	VRAMBank byte

	// WRAM bank 0-7 data
	WRAM [0x9000]byte
	// Index of the current WRAM bank
	WRAMBank byte

	OAM [0x100]byte
	// contains filtered or unexported fields
}