Atic Atac: Routine at 9D6F

The handler of SetGraphicAttributes for a graphic that is turned a quarter turn anti-clockwise. This is the same as SetAttributes_Upright, except that each row of the screen is made from a column of the attributes, from the right-hand side to the left-hand side.

The handler of SetGraphicAttributes for a graphic that is turned a quarter turn anti-clockwise. This is the same as SetAttributes_Upright, except that each row of the screen is made from a column of the attributes, from the right-hand side to the left-hand side.
SetAttributes_RotatedLeft	9D6F	POP BC	Restore the attribute and graphic ID from the stack.
	9D70	CALL GetGraphicAttributeDetails	Call GetGraphicAttributeDetails to get the details of the attributes.
	9D73	LD A,B	Fetch the width.
	9D74	EXX	Switch to the shadow registers.
	9D75	LD B,A	Keep the number of columns in B'.
	9D76	EXX	Switch back to the main registers.
	9D77	CALL AddWidthToAddress	Call AddWidthToAddress to move DE on to the second row.
SetAttributes_RotatedLeft_Row	9D7A	DEC DE	Move DE back to the previous column (at first, the last byte of the first row).
	9D7B	PUSH BC	Stash the width and height on the stack.
	9D7C	PUSH DE	Stash the position in the attributes on the stack.
	9D7D	PUSH HL	Stash the attribute buffer address on the stack.
SetAttributes_RotatedLeft_Cell	9D7E	LD A,(DE)	Fetch the next attribute.
	9D7F	AND A	Jump to SetAttributes_RotatedLeft_Next if it is 00.
	9D80	JR Z,SetAttributes_RotatedLeft_Next	Jump to SetAttributes_RotatedLeft_Next if it is 00.
	9D82	CP $FF	Jump to SetAttributes_RotatedLeft_Write if it is not FF.
	9D84	JR NZ,SetAttributes_RotatedLeft_Write	Jump to SetAttributes_RotatedLeft_Write if it is not FF.
	9D86	LD A,($5E1A)	Fetch the room attribute from CurrentRoom_Attribute.
SetAttributes_RotatedLeft_Write	9D89	LD (HL),A	Write A to the attribute buffer.
SetAttributes_RotatedLeft_Next	9D8A	CALL AddWidthToAddress	Call AddWidthToAddress to move down to the next row of the attributes.
	9D8D	INC L	Move HL on to the next cell.
	9D8E	DEC C	Decrease the height by one and loop back to SetAttributes_RotatedLeft_Cell until all of the rows have been set.
	9D8F	JR NZ,SetAttributes_RotatedLeft_Cell
	9D91	POP HL	Restore the attribute buffer address from the stack.
	9D92	LD BC,$0020	BC=0020 (the size of a row of the attribute buffer).
	9D95	AND A	Move up a row.
	9D96	SBC HL,BC	Move up a row.
	9D98	POP DE	Restore the position in the attributes from the stack.
	9D99	POP BC	Restore the width and height from the stack.
	9D9A	EXX	Switch to the shadow registers.
	9D9B	DEC B	Decrease the number of columns by one.
	9D9C	EXX	Switch back to the main registers.
	9D9D	JR NZ,SetAttributes_RotatedLeft_Row	Jump to SetAttributes_RotatedLeft_Row until all of the columns are done.
	9D9F	RET	Return.