Refer to: http://dork.clingman.org:8080/coco/ for docs/examples on these utilities. These utilities are fairly simple unix stuff. They should work with any standard unix system. Also, most likely OS9. You probably could compile gcc-6809 in osk and use it as a cross development platform. Basically: --------------------------------------------------------------- makebin converts a s19 file to coco binary format. --------------------------------------------------------------- sh dload.stty dload downloads the binary file to the coco. You only need to run dload.stty once per session. Dload was originally written by Burt Mitchell. I just made it work in linux. Bryan Clingman bac@realtimeweb.com