spec

type Spec struct {
	ID        string
	Palette   [256]color.RGBA
	HorizScan float64

	// dma top/bottom defines when dma is working and processing DLLs. it is equivalent to the
	// duration when VBLANK is disabled
	DMATop    int
	DMABottom int

	// safe top/bottom defines the safe area of a typical CRT television
	SafeTop    int
	SafeBottom int

	// overscan top defines an extended area in between the size of "safe" and "visble"
	OverscanTop int

	AbsoluteBottom int
}