83Plus:BCALLs:4F36

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Synopsis

Unofficial Name: SendOSPage

BCALL Address: 4F36

Sends one page of the OS to another calculator through the I/O port by sending 256 bytes at a time with header and data packets.

Inputs

  • A: page to send (00-08h or 74h-7Dh only, it will handle the 83+ and 84+ pages)
  • iy+1Bh set up accordingly

Outputs

  • None

Destroys

Comments

This BCALL will throw ERR:LINK if any problems are found.

It will receive acknowledge and continue packets where appropriate.

It will also send 0FFh at 0056h when sending page 0, but passing A=80h will very easily get around this.