Re: Evolution of Floating Point
Al Kossow
> I'm not sure that the original PDP-10 (KA-10 chassis, discrete
> transistors) even _had_ microcode
The KL-10 and KS-10 are the only released DEC microcoded implementations.
Later Foonlys were microcoded, would have to dig around if the
Super Foonly (ie. F1) was.
Not sure if which of the Systems Concepts machines were.
Was talking to the person who designed the console processor for the F1
a few weeks ago, and he told me there was a Foonly implementation that
had a 4-bit data path (a single 2901). Not sure which machine that would
have been.
Tim Shoppa
> Was talking to the person who designed the console processor for the F1
> a few weeks ago, and he told me there was a Foonly implementation that
> had a 4-bit data path (a single 2901).
Isn't that like the Peter Schickele joke about the Wagner Ring Cycle
on "convenient 45's"?
Tim.
Rich Alderson
> Quadibloc wrote:
>> I'm not sure that the original PDP-10 (KA-10 chassis, discrete
>> transistors) even _had_ microcode
> The KL-10 and KS-10 are the only released DEC microcoded implementations.
> Later Foonlys were microcoded, would have to dig around if the
> Super Foonly (ie. F1) was.
Since the SuperFoonly was the origin of the KL-10 (I know people who worked on
it at SAIL who moved to DEC with the project), I'd say it's a real good bet.
> Not sure if which of the Systems Concepts machines were.
All of them. I took the microcode class in April, 1989, at their headquarters
when their only delivered system was the SC-30M at LOTS.
> Was talking to the person who designed the console processor for the F1
> a few weeks ago, and he told me there was a Foonly implementation that
> had a 4-bit data path (a single 2901). Not sure which machine that would
> have been.
No idea. I *saw* a Foonly, once, from across the floor of the D. C. Power Lab.
--
Rich Alderson "You get what anybody gets. You get a lifetime."
ne...@alderson.users.panix.com --Death, of the Endless