53262



     (R) Player 1 to player collisions.

53262          D00E           GRAFP1
     (W) Graphics for player 1.

                              P2PL
     (R) Player 2 to player collisions.

53263          D00F           GRAFP2
     (W) Graphics for player 3.

                              P3PL
     (R) Player 3 to player collisions.

53264          D010           GRAFP3
     (W) Graphics for player 3.

                              TRIG0
     (R) Joystick trigger 0 (644). Controller jack one, pin six. For all
     triggers, zero equals button pressed, one equals not pressed. If
     BIT 2 of GRACTL (53277; $D01D) is set to one, then all TRIG
     BITs 0 are latched when the button is pressed (set to zero) and are
     only reset to one (not pressed) when BIT 2 of GRACTL is reset to
     zero. The effect of latching the triggers is to return a constant
     "button pressed" read until reset.

53265          D011           GRAFM
     (W) Graphics for all missiles, not used with DMA. GRAFM works
     the same as GRAFP0 above. Each pair of bits represents one
     missile, with the same allocation as in 53260 ($D00C) above.

         Bit  7 6  5 4  3 2  1 0
     Missile  -3-  -2-  -1-  -0-

     Each bit set will create a vertical line running the entire height of
     the TV screen. Missile graphics shapes may be set separately
     from each other by using the appropriate bit pairs. To mask out
     unwanted players, write zeros to the bits as above.

                              TRIG1
     (R) Joystick trigger 1 (645). Controller jack two, pin six.

53266          D012           COLPM0
     (W) Color and luminance of player and missile 0 (704). Missiles
     share the same colors as their associated players except when
     joined together to make a fifth player. Then they take on the same
     value as in location 53733 ($D019; color register 3).

                              TRIG2
     (R) Joystick trigger 2 (646). Controller jack three, pin six.

53267          D013           COLPM1
     (W) Color and luminance of player and missile 1 (705).