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Unofficial Name: RejectCommand

BCALL Address: 4F4B

Finishes receiving a silent link command and then rejects it by sending an acknowledgement packet and then the skip/exit packet with a value of 5, then receiving an acknowledgement.


  • E: zero
  • A: current value of port 0


  • 4 bytes received to header
  • A: second byte received


  • All


This is the link activity hook used by the OS. "add a,e" is actually run when you BCALL it, so make sure E is zero. I can't fathom why they did this.

You also probably should not call it unless you have detected link activity (for use in the link activity hook).