Read byte from ROM
Function AddressDescription
OSRDRM FFB9Read byte from paged ROM

This call returns a byte read from a paged ROM. The ROM number is in Y. The address to read is in &F6 and &F7

This routine was included for the implementation of ROM filing system software in paged ROM and is not recommended for general use.

Last modified October 31, 2021: Fix descriptions on MOS page (d932fb8)