Booty: Routine at 53420

53420: Animate Title Screen

Used by the routine at DisplayIntroductionScreen.
AnimateTitleScreen	53420	LD HL,16384	HL=16384 (screen buffer destination).
	53423	LD DE,27000	DE=IntroductionScreen (source).
Find the next instance of "5" in the source data.
AnimateTitleScreen_Loop	53426	LD A,(DE)	Jump to AnimateTitleScreen_Increment if *DE is not equal to 5.
	53427	CP 5
	53429	JR NZ,AnimateTitleScreen_Increment
	53431	LD A,(HL)	Seems to do nothing; as both A and the flags are overwritten in the UpdateAnimationCounter call.
	53432	CP 0
	53434	CALL UpdateAnimationCounter	Call UpdateAnimationCounter.
On returning; A=(554075)+1.
	53437	CP 128	Jump to AnimateTitleScreen_Reset if A is higher than 128.
	53439	JR NC,AnimateTitleScreen_Reset	Jump to AnimateTitleScreen_Reset if A is higher than 128.
	53441	LD (HL),A	Write A to the screen buffer pointer address.
	53442	JR AnimateTitleScreen_Increment	Jump to AnimateTitleScreen_Increment.
This byte has finished its cycle, so reset it.
AnimateTitleScreen_Reset	53444	LD A,0	Reset the current byte in the screen buffer back to 0.
	53446	LD (HL),A	Reset the current byte in the screen buffer back to 0.
Increment both source and destination pointers and loop back until the entire screen buffer has been processed.
AnimateTitleScreen_Increment	53447	INC HL	Increment screen buffer pointer by one.
	53448	INC DE	Increment source data pointer by one.
	53449	LD A,H	Jump to AnimateTitleScreen_Loop if H is not equal to 88.
	53450	CP 88
	53452	JR NZ,AnimateTitleScreen_Loop
	53454	LD A,L	Jump to AnimateTitleScreen_Loop if L is not equal to 0.
	53455	CP 0
	53457	JR NZ,AnimateTitleScreen_Loop
The end of the screen buffer has been reached, so return.
	53459	RET	Return.