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Routines |
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Used by the routines at DRAW_UPSIDE_DOWN, DRAW_FLIP_DIAGONAL, DRAW_TURNED_LEFT, COLOURS_UPSIDE_DOWN, COLOURS_FLIP_DIAGONAL and COLOURS_TURNED_LEFT.
DE -= B. The mirror of NEXT_SPRITE_ROW, for the drawing modes that read a sprite from the bottom up.
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| PREVIOUS_SPRITE_ROW | 9AA5 | LD A,E | ||
| 9AA6 | SUB B | |||
| 9AA7 | LD E,A | |||
| 9AA8 | LD A,D | |||
| 9AA9 | SBC A,$00 | |||
| 9AAB | LD D,A | |||
| 9AAC | RET | |||
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