83Plus:BCALLs:8093

Synopsis

Unofficial Name: MarkOSInvalid

BCALL Address: 8093

Set bit 0 of certificate byte 1FE0h, which indicates that the OS has not been successfully validated.

Inputs

None

Outputs

None

Destroys

• AF
• OP1, tempSwapArea, ramCode

Comments

Flash must be write enabled first.

This routine copies all of the certificate data from one sector to the other while setting the appropriate bit, and finally erases the original certificate sector.

The reason for making this a B_CALL is not clear to me.