Thanks, I was able to download the emulator and locate the ROM bin files. I'll read in my ROM this evening and see how they compare.
Thanks, Jeff -----Original Message----- From: M100 <[email protected]> On Behalf Of Daryl Tester Sent: Sunday, April 29, 2018 6:35 PM To: [email protected] Subject: Re: [M100] SPAM-LOW: Re: New member - question on 'half' alive Model 100 Hi Jeff. On Sun, 29 Apr 2018 16:11:08 -0500, Jeffrey Birt wrote: > I replaced C90 and have the same symptoms. I'll now dig out my eprom > programmer and read in the main ROM. I still need a known good rom > dump to compare to. Anyone have one of those? I thought the Bitchin' Wiki or the Club web-site would have had dumps, but a quick look (admittedly *very* quick) didn't find anything. However, I remember that the Model 100/102/200 emulator "Virtual T" has the ROMs as separate files, so you could download a copy and use those - https://sourceforge.net/projects/virtualt/ And a thought on your diagnosing (again, only quickly caught up with emails and definitely pre-coffee), but before you replace the CPU you may want to check that the address latching is working correctly, given if the multiplexing screws up that's going to cause all sorts of weird behaviours. Best of luck! Cheers. -- Regards, Daryl Tester Handcrafted Computers Pty. Ltd.
