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29125Re: IMSAI 8080

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  • corey986
    Jan 31, 2013
      You don't happen to have documentation for the Dutronics board? I have one and have no clue how it hooks up. I only see where you plug it into the 8080a slot and a single wire that comes out that is supposed to hook up to something...
      email me directly at corey@... so I can ask you more questions about it.


      --- In midatlanticretro@yahoogroups.com, joshbensadon wrote:
      > --- In midatlanticretro@yahoogroups.com, "Bill Sudbrink" wrote:
      > >
      > > Joshbensadon wrote:
      > > >
      > > > --- In midatlanticretro@yahoogroups.com, "DanielB" wrote:
      > > >
      > > > >I am much more comfortable in the digital logic world.
      > > >
      > > > You have an option to remove the Dutronics board and return to an 8080A
      > > > processor.
      > >
      > > Should you decide to do that for some reason, I will happily buy
      > > that from you. I'll even sell you a nice ceramic 8080.
      > >
      > > Bill S.
      > A trade for a Ceramic 8080A + 8212 chip for the Dutronics board IMHO would be fair. It would let Daniel experience an original IMSAI 8080.
      > The problem with the Dutronics board is when you hit STOP, you might not always land on an M1 cycle, so the EXAMINE & DEPOSIT buttons won't work until you are on an M1 cycle. You have to manually advance the processor with SINGLE STEP to the next M1.
      > And then there's the problem of running some software designed for the 8080A (4K BASIC is the common example). The Z80A is not a perfect replacement for the 8080A. The Dutronics board (with all it's extra logic chips) does a good job at coming *close* to mimic the 8080A.
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