TirNaNog: Routine at 8798

8798: Blit the background behind the Sidhe.

Used by the routines at Vectors and BgUpdate.
Sidhe_BlitBg	8798	LD DE,(Baddy_OffscreenPtr)	Get where to blit on offscreen.
	879C	LD A,E
	879D	OR D
	879E	RET Z
	879F	LD BC,(BaddyWidth)	Get width and height of Sidhe.
	87A3	LD A,B
	87A4	LD B,$00
	87A6	LD HL,$F53A	Get address of stored background.
Sidhe_BlitBg_0	87A9	PUSH BC
	87AA	PUSH DE
	87AB	LDIR
	87AD	POP DE
	87AE	EX DE,HL
	87AF	LD BC,$0022
	87B2	ADD HL,BC
	87B3	EX DE,HL
	87B4	POP BC
	87B5	DEC A
	87B6	JR NZ,Sidhe_BlitBg_0
	87B8	LD HL,$0000
	87BB	LD (Baddy_OffscreenPtr),HL
	87BE	RET