opcode FltClassic, 0, iKKK
	iRoll, kFreq, kRes, kMod xin
	ain zar 2; CHANGE
	kmod zkr 1; CHANGE
	kPitch zkr 2; CHANGE
	aout lowresx ain, kFreq+kmod*kMod+kPitch, kRes, iRoll ;Roll = 2,3,4 x6
	; balance ???
	; Freq is not in Hz for lowresx
	zaw aout, 2 ;CHANGE
endop
