83Plus:BCALLs:50E3

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Synopsis

Unofficial Name: LinkStatus

BCALL Address: 50E3

Minimum OS Version: 1.13

Checks the status of port 0 or the link assist for activity, depending on the model calculator.

Inputs

  • None

Outputs

  • NZ set if calculator is busy

Destroys

  • None

Comments

This B_CALL was introduced in OS 1.13. Programs should check the OS version before attempting to use this routine.

This BCALL may be connected to BCALLs 50E6 and 50E9.