83Plus:BCALLs:80C9

Synopsis

Official Name: WriteFlash

BCALL Address: 80C9

Writes data to Flash, but prevent writing to page 1E.

Inputs

• A = Flash page to write
• DE = address to write
• BC = number of bytes to write
• HL = source address, must be in RAM

Outputs

• NZ if the byte could not be written

Destroys

• AF, DE, BC, HL

Comments

Flash must be write enabled first.

Note that you cannot use this to write a 1 bit over a 0.

To write to page 1E, use WriteFlashUnsafe.