Intel SDK-85 monitor ROM

Chris Elmquist chrise at
Sat Aug 13 06:15:36 CDT 2016

I believe I can help with this.  Although I do not have a spare device, I do have the binary as Intel hex as I had the same device fail on my SDK-85 and went through the exercise replacing it.  I'll report back off list once I dig up the file.


On August 13, 2016 3:07:06 AM CDT, Alexis Kotlowy <thrashbarg at> wrote:
>Hi List,
>I've started looking at my SDK-85 after having it on the shelf for
>years. I know the 8355 mask ROM on it isn't working but I haven't been
>able to find a suitable replacement. I wired up a temporary solution
>with a 2716 EPROM only to find the ROM image and source code aren't
>available outside of dead-tree format. I'm not about ready to type out
>48 pages of source code. Does anyone have a digital copy of the source,
>or the assembled binary or, even better, a replacement ROM?
>(I'm in Adelaide, Australia.)

Chris Elmquist

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