HP2000/Access - in it's final form - alive!!

You wrote... Thanks! It has been pure hell to be honest. Many times it seemed to be up, only to have something fail the day after I posted it was up. But I'm pretty sure it's up for a good while now :) benchmarks. HP was kind enough to give us times for a number of other systems, but Access was not around when these numbers were published. I guess we should know which CPU type your Main is too. Sure, no problem. I will try to run it tonight. My main and IOP cpu's are 2100A and 2100S respectively. However, a project is under way to reverse engineer the Access IOP microcode and port to the E machines, so at some point I will likely have two 21MXE cpus instead. Speaking of which, I notice in the comments you list times for C, C', F, E, etc... these aren't really detailed enough. For example, E will run faster on a 21MX than a 2100 mainly due to memory access times between core and semiconductor. lot less juice than real hardware, and that translates directly into heat. The heat is reusable in the winter (free heat) but in the summer you have to pay a second time to get rid of the heat (AC). *GRIN* Most true. However, I'm not working with SIMH as I'm still working on my own HP emulator "HPEMU". Mine emulates not just a cpu, but a whole computer room full of separate (or connected) HP systems, printers, etc. I made huge progress on it, then got stonewalled due to work issues. I hope to get back to it and finish it off. It's not all that far from being done if I could just find the time to get back into it. tested. Are you in a position to convert dot-tap files back to real (reel) tapes? If so I can post things for you and send you a URL for them. Otherwise I would have to get some scratch tapes and cut them here and mail them. I currently do not have a 1/2 tape drive hooked up to a PC to cut .tap files. However, I'm working on that - right now it's top priority. I would hope to have everything in place for that within a week or two. fit on your system. We usually run 2 simulated 2883 disks for an Access simulation (50 MEG total) but that could be pushed up if we need it. I currently have one 7906D (30mb) running, but with Access you loose head 3 as it only supports 7905's. I seem to recall that works out to something like 25mb (removable and fixed platters are different densities, and "heads" 2 and 3 are actually on the same platter). However, I have a 7900A (10mb) in a separate rack I can easily wheel in and connect, as well as another working 7906D in a different separate rack I can wheel in and connect. So I currently have 30mb ballpark, but can have 40 or 60mb easily. Sure! Jay West --- [This E-mail scanned for viruses by Declude Virus]