Exciting Boxing Punching Bag

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This punching bag/doll is used in a single game:

  • Exciting Boxing


It contains 8 sensors, each returned as a single bit when reading $4017:

  • Left/Right Hook
  • Left/Right Jab
  • Left/Right Move
  • Straight
  • Body

Hardware interface

Input ($4016 write)

7  bit  0
---- ----
xxxx xxAx
       |
       +- Select output sensors (see below)


Output ($4017 read)

7  bit  0
---- ----
xxxE DCBx
   | |||
   | ||+-- Left Hook (A = 0), Left Jab (A = 1)
   | |+--- Move Right (A = 0), Body (A = 1)
   | +---- Move Left (A = 0), Right Jab (A = 1)
   +------ Right Hook (A = 0), Straight (A = 1)

See Also