84PCE:Syscalls:0002DC
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Contents
Synopsis
Hypothesized Official Name: EraseFlashSector
Syscall Address: 0002DCh
Erases an entire sector (64kb) of flash memory. This basically resets the bytes in the sector back to the nominal value of FF.
Inputs
- A = Sector to clear
Outputs
- Sector erased
Destroys
- All
Notes
This routine actually checks the caller PC address to ensure it was called from a suitable location. A workaround is as follows using the fact that 0000F8 consists of a jump to a ret instruction.
EraseFlashSector: ld bc,0000F8h push bc jp _EraseFlashSector
