Blizzard Pass: Routine at 29681

29681: Address Pixel Row

Used by the routines at ShapeIfPresent, DrawFixedShift, HorizontalRun and VerticalRun. Turns a pixel row in B into a display address via the character-row table.
PixelRow	29681	LD A,B
	29682	CALL RowWord
	29685	PUSH DE
	29686	POP HL
	29687	LD B,0
	29689	ADD HL,BC
	29690	RET
PixelRow_0	29691	PUSH BC
	29692	PUSH HL
	29693	LD BC,0
	29696	ADD HL,BC
	29697	LD B,C
	29698	DEC HL
	29699	PUSH HL
	29700	POP DE
PixelRow_1	29701	RL (HL)
	29703	DEC HL
	29704	DJNZ PixelRow_1
	29706	EX DE,HL
	29707	RES 0,(HL)
	29709	JR NC,PixelRow_2
	29711	SET 0,(HL)
PixelRow_2	29713	POP HL
	29714	POP BC
	29715	INC H
	29716	DJNZ PixelRow_0
	29718	RET
This entry point is used by the routine at HorizontalRun.
PixelRow_3	29719	PUSH BC
	29720	CALL PixelRow
	29723	LD B,8
	29725	CALL PixelRow_0
	29728	POP BC
	29729	INC B
	29730	LD A,B
	29731	CP 0
	29733	JR NZ,PixelRow_3
	29735	RET