JLO SAFE DOS v2.35

ROM image for use with John Oliger disk drive system. This is the 8K EPROM for Oliger’s TS2068 disk interface (Disk Board B with NMI Save), holding JLO SAFE (Simple And Fast Extended) disk BASIC version 2.35. The sign-on reads “JLO SAFE V2.35” and “© 1987, J. Oliger”, and the catalogue messages show the disk name, the number of tracks and sides it was formatted with, its capacity and the free space in K bytes.

SAFE uses the cassette commands with a slash, as in SAVE /"name" and LOAD /"name"; the product page describes the command set and the drive sizes it supports. A later version, JLO SAFE DOS v2.65, has its own entry.

What’s in the download

• JLO SAFE DOS v2.35.BIN: the 8,192-byte EPROM image. It begins by switching the TS2068’s memory banks through port F4h.