PLAYFIELD_LEFT = 32 PLAYFIELD_TOP = 16 PLAYFIELD_W = 384 PLAYFIELD_H = 368 PLAYFIELD_RIGHT = PLAYFIELD_LEFT + PLAYFIELD_W PLAYFIELD_BOTTOM = PLAYFIELD_TOP + PLAYFIELD_H PLAYFIELD_VRAM_LEFT = PLAYFIELD_LEFT / 8 PLAYFIELD_VRAM_W = PLAYFIELD_W / 8 PLAYFIELD_VRAM_RIGHT = PLAYFIELD_RIGHT / 8 ifdef RES_Y PLAYFIELD_ROLL_MARGIN = (PLAYFIELD_TOP + (RES_Y - PLAYFIELD_BOTTOM)) endif