Atic Atac: Routine at 9B14

9B14: Drawing mode 6: furniture's pixels mirrored across the top-left to bottom-right diagonal

Entry 6 of PIXEL_DRAWERS. DRAW_TURNED_RIGHT's bit gathering, reading the rows from the top down: the picture mirrored across its leading diagonal, top-left to bottom-right -- a transpose. (Matched pixel for pixel against the stored picture by the how-it-works build, 2026-09-27; renamed from the transposed names, which had the diagonals the other way round.)
DRAW_FLIP_DIAGONAL	9B14	POP BC
	9B15	CALL SPRITE_COMBINE_OPCODE
	9B18	LD (DRAW_FLIP_DIAGONAL_OP),A
	9B1B	CALL FETCH_SPRITE
	9B1E	LD A,B
	9B1F	EXX
	9B20	LD B,A
	9B21	LD L,$01
	9B23	EXX
	9B24	CALL NEXT_SPRITE_ROW
	9B27	DEC DE
	9B28	CALL START_AT_LAST_ROW
DRAW_FLIP_DIAGONAL_0	9B2B	PUSH BC
	9B2C	PUSH DE
	9B2D	PUSH HL
DRAW_FLIP_DIAGONAL_1	9B2E	LD A,(DE)
	9B2F	EXX
	9B30	AND L
	9B31	JR Z,DRAW_FLIP_DIAGONAL_2
	9B33	SCF
DRAW_FLIP_DIAGONAL_2	9B34	RL H
	9B36	EXX
	9B37	CALL PREVIOUS_SPRITE_ROW
	9B3A	DEC C
	9B3B	LD A,C
	9B3C	AND $07
	9B3E	JR NZ,DRAW_FLIP_DIAGONAL_1
	9B40	EXX
	9B41	LD A,H
	9B42	EXX
DRAW_FLIP_DIAGONAL_OP	9B43	NOP
	9B44	LD (HL),A
	9B45	INC L
	9B46	LD A,C
	9B47	AND A
	9B48	JR NZ,DRAW_FLIP_DIAGONAL_1
	9B4A	POP HL
	9B4B	CALL SCREEN_ROW_UP
	9B4E	POP DE
	9B4F	POP BC
	9B50	EXX
	9B51	RLC L
	9B53	EXX
	9B54	JR NC,DRAW_FLIP_DIAGONAL_0
	9B56	EXX
	9B57	DEC B
	9B58	EXX
	9B59	RET Z
	9B5A	DEC DE
	9B5B	JR DRAW_FLIP_DIAGONAL_0