Alien (BUGFIX 1.7): Routine at 33644

Reached only from DrawRoomBackground's hidden dispatch: the JP Z at $7A41 (inside the code preserved as DEFBs at 31267) lands here when RoomTypeByte is 3, i.e. the Narcissus. Expands NarcissusLayout into the grid buffer, copies NarcissusAttrs over the attribute file, then renders the grid via DrawRoomBackground_0. No skoolkit-visible caller — the JP hides in DEFB data — and absent from the execution traces only because they never boarded the shuttle.

The screen this routine produces, rendered by executing it in the simulator against the pristine snapshot:

Reached only from DrawRoomBackground's hidden dispatch: the JP Z at $7A41 (inside the code preserved as DEFBs at 31267) lands here when RoomTypeByte is 3, i.e. the Narcissus. Expands NarcissusLayout into the grid buffer, copies NarcissusAttrs over the attribute file, then renders the grid via DrawRoomBackground_0. No skoolkit-visible caller — the JP hides in DEFB data — and absent from the execution traces only because they never boarded the shuttle. The screen this routine produces, rendered by executing it in the simulator against the pristine snapshot:
33644	LD HL,30720	NarcissusLayout: RLE source
33647	CALL 33153	RleMapExpand -> grid buffer
33650	LD DE,30861	NarcissusAttrs
33653	LD HL,22528	attribute file base
33656	LD C,19	19 rows...
33658	LD B,20	...of 20 attribute bytes
33660	LD A,(DE)
33661	LD (HL),A
33662	INC DE
33663	INC HL
33664	DJNZ 33660
33666	PUSH DE
33667	LD DE,12	skip the remaining 12 columns of the row
33670	ADD HL,DE
33671	POP DE
33672	DEC C
33673	JR NZ,33658
33675	LD HL,26121	grid buffer
33678	CALL 31312	render it as tiles
33681	RET