Atic Atac: Routine at 9A50

9A50: Drawing mode 3: furniture's pixels mirrored across the bottom-left to top-right diagonal

Entry 3 of PIXEL_DRAWERS. Gathers bits as DRAW_TURNED_RIGHT does, but from the left-hand column rightwards: the picture mirrored across the diagonal from its bottom-left to its top-right corner. (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_ANTIDIAGONAL	9A50	POP BC
	9A51	CALL SPRITE_COMBINE_OPCODE
	9A54	LD (DRAW_FLIP_ANTIDIAGONAL_OP),A
	9A57	CALL FETCH_SPRITE
	9A5A	LD A,B
	9A5B	EXX
	9A5C	LD B,A
	9A5D	LD L,$80
	9A5F	EXX
DRAW_FLIP_ANTIDIAGONAL_0	9A60	PUSH BC
	9A61	PUSH DE
	9A62	PUSH HL
DRAW_FLIP_ANTIDIAGONAL_1	9A63	LD A,(DE)
	9A64	EXX
	9A65	AND L
	9A66	JR Z,DRAW_FLIP_ANTIDIAGONAL_2
	9A68	SCF
DRAW_FLIP_ANTIDIAGONAL_2	9A69	RL H
	9A6B	EXX
	9A6C	CALL NEXT_SPRITE_ROW
	9A6F	DEC C
	9A70	LD A,C
	9A71	AND $07
	9A73	JR NZ,DRAW_FLIP_ANTIDIAGONAL_1
	9A75	EXX
	9A76	LD A,H
	9A77	EXX
DRAW_FLIP_ANTIDIAGONAL_OP	9A78	NOP
	9A79	LD (HL),A
	9A7A	INC L
	9A7B	LD A,C
	9A7C	AND A
	9A7D	JR NZ,DRAW_FLIP_ANTIDIAGONAL_1
	9A7F	POP HL
	9A80	CALL SCREEN_ROW_UP
	9A83	POP DE
	9A84	POP BC
	9A85	EXX
	9A86	RRC L
	9A88	EXX
	9A89	JR NC,DRAW_FLIP_ANTIDIAGONAL_0
	9A8B	EXX
	9A8C	DEC B
	9A8D	EXX
	9A8E	RET Z
	9A8F	INC DE
	9A90	JR DRAW_FLIP_ANTIDIAGONAL_0