Championship Bowling (NES):ROM map

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Page 00 ($8000-$BFFF)

Function 00:88FF

Checks for collisions between the ball & pins; sets carry flag if true.

Parameters

  • X - Pin number (0x00 = Pin 1, and so on)

Function 00:89DE

Checks for object collision; sets carry flag if true.

Parameters

  • $80/$82 - x-positions of objects
  • $81/$83 - y-positions of objects
  • $84 - x-difference threshold ([hitbox width-1]/2)
  • $85 - y-difference threshold ([hitbox height-1]/2)

Page 01 ($C000-$FFFF)