HP logic analysers - IAs and utils?

Hi Philip, thanks for your comments! I did some search and was not able to get hands on a copy of the "Inverse Assembler toolkit". :-( But still I think, that the source code of IALDOWN might be interesting fo lot of people using 1600 analyzers. Since you used the NI library it should be easy to port it to other libraries: the NI library is somthing like standard for GPIB. Maybe I will be able to locate the "Inverse Assembler toolkit" in the future and than I'd be interested, too! Maybe the linux-gpib-project's people are interested as well (search for "hp1630 logic analyzer sourceforge" within google groups). Last but not least I consider the HP1600 analyzers very well suited for debugging and maintaining classic comps and I am happy to have one ;-) Best regards, Erik.