Some DIBOL information is in the COS-310 manuals http://www.pdp8.net/pdp8cgi/query_docs/query.pl?Search=cos&stype=Partia… The COS images under ftp://ftp.pdp8.net/images/ may have some DIBOL/QBOL software. Also probably the ETOS image has some. I probably have more around. If you find you need more email me in two weeks and I may have time to look more. David Gesswein http://www.pdp8.net/ -- Run an old computer with blinkenlights.