Proud owner of a SDK-86, now what (revisited)

Randy Dawson rdawson16 at
Sat Jan 10 00:52:11 CST 2015

OK, I think I have a development environment, I found 8086tiny... to run an assembler under win 7 (using cygwin) and I have DOS prompt with 8086tiny, what a cool program!
 I will get the serial port and monitor talking next, to upload Intel hex files.
I do not want to solder on this board, it is so pristine, but I hope to add what I want from the plug in bus pins and a connector to a proto board:
8087 math coprocessor is on the way from that auction site
I will cheat and add a modern meg ram chip
I have a 1771 FDC here, but thats an 8080/z80 part, I probably need the XT disc controller
Video next

The idea is to get it to boot DOS and a hard disk, build the IBM XT from scratch with the SDK-86 as the base.

Franken-PC-XT, and having fun here.

> Date: Fri, 9 Jan 2015 10:53:14 -0500
> Subject: Re: Proud owner of a SDK-86, now what
> From: scaron at
> To: cctalk at; scaron at
> If it fires up OK, pretty much all you should need to get going is an ASM
> programmer's reference for the 8086 and some idea of what the memory map is
> on that SBC... you can probably find both floating around on Bitsavers or
> something. Intel did the H/W design on this one so you can just focus on
> writing software ;)
> If you are looking for more resources, I have a number of these books from
> Merrill Publishing... there is one about the 8086/8088 in particular,
> "8086/8088 Microprocessor: Architecture, Programming and Interfacing" by
> Brey, might be worth checking out... I don't own that particular title, but
> I own several other titles from the same publishing house and they are all
> pretty good.
> What you can do is limited only by your imagination! If I were you, I'd
> probably start out trying to interface a UART, get a little monitor running
> on a TTY, and go from there :)
> Best,
> Sean
> On Fri, Jan 9, 2015 at 9:28 AM, Alexandre Souza <
> alexandre.tabajara at> wrote:
> > I have one too, but never got it to work. I believe some of the 2104
> > memories are fried. Lazy as I am, I still need to make an adapter for a
> > 6116 or something.
> >
> > On Thu, Jan 8, 2015 at 9:58 PM, Randy Dawson <rdawson16 at>
> > wrote:
> >
> > > I got this off of the auction site, listed as untested.  It came in
> > today,
> > > looks in beautiful condition, and powers up just fine, with the 86 1.1
> > > message on the display.  I have the 'Microcomputer Experiments With the
> > > SDK-86, Leventhal' book headed my way.
> > >
> > > I have not been able to find much else - any suggestions for fun projects
> > > with this?
> > >
> > > Randy
> > >
> > >
> >

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