FPUs for small computers (Was: What to download for a PDP-8)

Roger Ivie rivie at ridgenet.net
Wed Oct 17 14:27:47 CDT 2007


On Wed, 17 Oct 2007, Chuck Guzis wrote:
> On 17 Oct 2007 at 12:09, Jim Battle wrote:
>
>> Finally, I recall seeing an article where somebody took a pocket
>> calculator chip and essentially poked simulated keystrokes at it and
>> then decoded the LED driver output to determine the answer.  It was very
>> slow, though, so all it saved was the space of the floating point
>> library code.
>
> I remember that one.  It may have been an early issue of Byte.  I
> also wondered at the time if any speed was gained over just running
> plain old x80 code.

IIRC, it was in the .01-centennial issue of Dr. Dobb's. I have a copy of
it somewhere, but there's no way I could find it without a lot of
effort.
-- 
roger ivie
rivie at ridgenet.net



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