83Plus:BCALLs:8084

Synopsis

Official Name: EraseFlashPage

BCALL Address: 8084

Erase a Flash sector (reset it to all FF's.)

Inputs

• A = Flash page to erase

Outputs

• NZ if the sector could not be erased

Destroys

• AF, HL

Comments

Flash must be write enabled first.

Note that this will erase an entire sector of Flash, which is usually 64k. It is physically impossible to erase a smaller area, due to the internal structure of the Flash chip used in the 83+.

This B_CALL will refuse to erase page 1E; you must use EraseFlash for that.