Jetpac: Routine at 67ED

67ED: Sounds: Thrusters

Used by the routines at 63DA, 66C7 and 66EB.
SoundsThrusters	67ED	LD A,(IX+$02)
	67F0	RRCA
	67F1	RRCA
	67F2	RRCA
	67F3	RRCA
	67F4	AND $7F
	67F6	OR $40
	67F8	LD D,A
	67F9	LD C,$10
	67FB	JR PlaySquareWave_Loop