FLEX Software Archive

The FLEX Operating System was an early OS developed for systems based on the Motorola 6800 and 6809 microprocessors. It had support for up to four 5 1/4" or 8" floppy drives and ran in only 8K of RAM.

There was a large amount of commercial software developed for FLEX, including compilers for high-level languages such as Fortran and C, in addition to many utilities, tools, and text editors, etc. Much of this software is available as FLEX disk image files (or 'DSK' files) on several sites, including the FLEX User Group and the Evenson Consulting 6800/6809 Emulator site. The FLEX User Group also maintains an FTP site that contains a large quantity of FLEX and other 6800/6809/68000 related resources.

What is available on this site is likely the majority of all the DSK images currently still in existence. I performed bulk exports from the various sites I've mentioned here and then ran a script to extract all of the DSK images I could find. This resulted in 1,379 disk image files. Then I then ran a cataloging script to list the contents of each disk. 

DSK Images 

A zip file of all 1,379 FLEX DSK images is available here.

A consolidated file listing for each disk image is available here.

Enjoy!​

Documentation

All of this documentation is available elsewhere on the internet, but here is my consolidated collection:

6809fadg.pdf - 6809 FLEX™ Adaptation Guide

f77.pdf - Fortran 77 for 6809 FLEX

flex2um.pdf - FLEX User Manual - Early version of FLEX 2 for 6800

swflexum_flex9.pdf - FLEX User Manual - Later version of FLEX 9 for 6809

flexapg.pdg- FLEX Programmer's Manual - 6809 Version

swtpcfgn.pdf - FLEX General Notes

tedit.pdf - TSC Text Editor

TSC_FLEX_BASIC.pdf - TSC FLEX Basic

TSC-6809-Assembler.pdf - TSC 6809 Assembler

TSC-6809-Flex-Diagnostics.pdf - TSC 6809 FLEX Diagnostics

TSC-Flex-Utilities.pdf - TSC FLEX Utilities