Sabre Wulf: Routine at 47417

47417: Prepare Draw 2/ 3 Byte Sprite

Used by the routines at RemoveEntity and DisplayEntity.
PrepDraw23	47417	CALL GetSpriteA	Call GetSpriteA.
	47420	LD HL,(38560)	HL=Saved_X (saved X position).
	47423	LD A,L
	47424	DEC A
	47425	RLCA
	47426	AND %00001110	Keep only bits 1-3.
	47428	OR %11110000	Set bits 4-7.
	47430	LD B,A	Store the result in B.
	47431	LD A,(DE)
	47432	INC DE
	47433	NEG
	47435	AND %00000111	Keep only bits 0-2.
	47437	ADD A,A
	47438	ADD A,A
	47439	LD C,A
	47440	ADD A,A
	47441	ADD A,C
	47442	LD C,A
	47443	LD A,L
	47444	AND %00000111	Keep only bits 0-2.
	47446	LD A,C
	47447	JR NZ,PrepDraw23_0
	47449	ADD A,6
PrepDraw23_0	47451	LD (47635),A
	47454	LD A,(DE)
	47455	INC DE
	47456	LD (38563),A	Write A to SomeHeight.
	47459	CALL ScreenAddress	Call ScreenAddress.
	47462	LD C,0	C=0.
	47464	RET	Return.