Texas Instruments 990 with DS10 disk drive?
Peter C. Wallace
pcw at mesanet.com
Wed Feb 23 23:39:38 CST 2005
On Wed, 23 Feb 2005, woodelf wrote:
> Tom Jennings wrote:
>
> > On Wed, 23 Feb 2005, steven stengel wrote:
> >
> >> I can (probably) obtain a Texas Instruments 990, with
> >> a 5-foot desk and DS10 disk drive.
> >>
> >> I don't know much about it, or even what's all
> >> included, or what it will cost, but is this something
> >> someone here would like to have if I turn it down?
> >
> >
> > Grab it!
> >
> > Doesn't the 990 have a weird architecture, like no registers, but
> > every "page" of memory has registers in the low numbers? Some wierd
> > memory-to-memory paradigm...
> >
> A old computer in the hand is worth three on epay. :)
> It is a rather nice 16 bit design, but I belive you use the
> first 16 words in a subroutine for local registers.
> Ben Alias woodelf
>
>
No, but you could do interesting things like branch to R5 (I dont mean @R5)
Peter Wallace
Mesa Electronics
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