Moonlight Madness: Routine at F48B

F48B: Draw Box

Used by the routine at JumpTable_DrawBox. Draws a box of character C8.
Draw_Box	F48B	CALL Next_PrintCell	Call Next_PrintCell.
	F48E	XOR A	Return if the width is zero.
	F48F	CP E
	F490	RET Z
	F491	CP D	Return if the height is zero.
	F492	RET Z	Return if the height is zero.
Draw_Box_Target	F493	PUSH BC	Stash the print position on the stack.
	F494	CALL Set_PrintPosition	Call Set_PrintPosition.
	F497	LD B,E	Copy the remaining width into B.
Draw_Box_Target2	F498	LD A,$C8	Print a C8 tile.
	F49A	CALL Print_Character	Print a C8 tile.
	F49D	CALL Write_Tile	Call Write_Tile.
	F4A0	DJNZ Draw_Box_Target2	Decrease the width and loop back to Draw_Box_Target2 until this row is drawn.
	F4A2	POP BC	Restore the print position from the stack.
	F4A3	DEC D	Return if every row is drawn.
	F4A4	RET Z	Return if every row is drawn.
	F4A5	DEC B	Move up one row.
	F4A6	JR Draw_Box_Target	Jump to Draw_Box_Target.