23 Sep
2007
23 Sep
'07
7:54 p.m.
On 23 Sep 2007 at 12:35, Roy J. Tellason wrote:
Do you know of any handy data online for the part? A
basic overview and maybe
some info on the instruction set and hardware would be nice. Somehow or
other I never managed to get a hold of any when that chip hit the market.
The NSC800 hit the market in 1981; by then, a lot of firms were
already planning their 16-bit entry. As was usual with NSCs
marketing group, I was completely oblivious to the existence of the
thing until I'd moved on to the 8086/80186. The timing of the
product by National was very odd. And the initial speed offering--1
MHz--was insane, considering that the 4MHz Z80 was common fare and I
think the Z80B and Z80H may have been available by then (I'm not
certain, though).
Had the chip been available with a decent speed (say, 4MHz) in, say,
1979, we might well have used it.
Cheers,
Chuck