The Trap Door: Routine at 65003

65003: Play Menu Music Coda

Used by the routine at Continue_MenuMusicTick. Play coda notes from the table at MenuMusic_CodaNoteTable via the ROM beeper.
Play_MenuMusicCoda	65003	LD E,B	Point DE at offset B and HL at MenuMusic_CodaNoteTable.
	65004	LD D,0
	65006	LD HL,65059
	65009	ADC HL,DE	Add the offset into HL.
	65011	LD A,(HL)	Fetch the note length into B.
	65012	LD B,A	Fetch the note length into B.
	65013	LD HL,3	Point HL at the starting pitch (0003).
Sound each coda step through Sound_CodaBeep.
Play_MenuMusicCoda_Loop	65016	PUSH BC	Stash the remaining note count on the stack.
	65017	LD DE,1	Load DE with pitch step 0001.
	65020	PUSH HL	Stash the current pitch on the stack.
	65021	CALL Sound_CodaBeep	Call Sound_CodaBeep to beep at this pitch.
	65024	POP HL	Restore the pitch into HL.
	65025	LD DE,255	Raise the pitch by 0255.
	65028	ADC HL,DE	Raise the pitch by 0255.
	65030	POP BC	Restore the remaining note count.
	65031	DJNZ Play_MenuMusicCoda_Loop	Decrease B and loop to Play_MenuMusicCoda_Loop while notes remain.
	65033	RET	Return.