83Plus:BCALLs:80FF

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Synopsis

Unofficial Name: SetupOSPubKey

BCALL Address: 80FF

Minimum Hardware Version: 2

Loads the OS public key as a big integer into the appData area.

Inputs

  • A = OS header page (3Ah or 7Ah)

Outputs

  • Memory at 8000 contains the OS public key

Destroys

  • BC, DE

Comments

This routine is only available on the TI-84 Plus.

It loads the OS validation key, by analogy to SetupAppPubKey. As with SetupAppPubKey, it will always work if one of the freeware keys (04 or 0A) is requested; loading non-freeware keys requires Flash to be write-enabled first.