84PCE:Syscalls:0002E8

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