83Plus:Boot-Code Required Values
From WikiTI
The boot code for the TI-83+ family of calculators requires some information to be stored in the OS.
- It must be properly signed when sent.
- When sent, 0x56 must equal $A5FF (the boot code changes this to $A55A).
- 0x26 must be zero, or a failed OS transfer will not properly restart the OS.
- Each sent page must also include the first page of its sector in the 8XU file, or it will not properly transfer.
