Re: [cosmacelf] MSI/88e - Looking to buy or borrow another unit
- Bill Rowe wrote:
> Hello all. I have been working on an MSI/88e unit provided by dfnr2(Dave) on this list and have made a lot of progress. I have had a hex monitor running from a swapped in ROM and I can display messages on the displays, turn on the speaker, and power off the unit.Hi Bill,
> I am kind of stalled now because the unit has been getting steadily flakier and now it will no longer execute its original ROM.
> The symptoms seem very mysterious to me: It started with the unit freezing if code left the Q line raised for any length of time but it just gets odder.
> I now have fragments of code that will reliably execute using the bottom half of a register as a temporary but become flaky when I change it to use the top half!
> I would specifically like the cpu board and/or the display board. A full unit is fine of course. I'd be happy to pay shipping and any reasonable purchase price if you don't want it back.
I'm back home now (til tomorrow). I have a box of MSI/88e's somewhere,
along with my other 1802 stuff, and looked for it in vain. :-( When I
get back after New Year's, I'll look for them some more.
Ring the bells that still can ring
Forget the perfect offering
There is a crack in everything
That's how the light gets in -- Leonard Cohen
Lee A. Hart, 814 8th Ave N, Sartell MN 56377, leeahart_at_earthlink.net