public _PI_MASKS
_PI_MASKS	label word
; 0
	dw 00000h
	dw 01111h
	dw 00000h
	dw 04444h
; 1
	dw 08888h
	dw 01111h
	dw 02222h
	dw 04444h
; 2
	dw 0AAAAh
	dw 05555h
	dw 0AAAAh
	dw 05555h
; 3
	dw 0EEEEh
	dw 07777h
	dw 0BBBBh
	dw 0DDDDh