opcode Mix21B, 0, kkii   ; MULTIMODE support a/k?
	a1 zar 1 ; CHANGE 
	a2 zar 1 ; CHANGE 
	a3 zar 1 ; CHANGE 
	kLev1, kLev2, iSW1, iSW2 xin ; iSW = -1/1
	aout = a1 + a2*kLev1*iSW1 + a3*kLev2*iSW2
	zaw aout, 2 ; CHANGE 
	; LIN vs DB?
endop