[ntp:questions] 500ppm - is it too small?
joegwinn at comcast.net
Fri Nov 13 18:17:16 UTC 2009
In article <lak0t6-g6n.ln1 at klein-habertwedt.de>,
Uwe Klein <uwe_klein_habertwedt at t-online.de> wrote:
> Joseph Gwinn wrote:
> > The prototypical example of an orthogonal instruction set was the
> > PDP-11. The Motorola 68000 family was an outgrowth.
> 68k -> CISC and still very much alive
> 88k -> RISC drifting belly up in the pond.
> in ~1990 Motorola wanted to push RISC 88k so much
> you could buy a MVME187 plus SysVR3 unix System
> for half the price of a MVME167. Afaik it was a flop.
I remember the 88K. Sort of.
> PowerPC later took off in an acceptable way.
Yes. IBM uses the instruction set to this day in their large servers.
> Another side is a bit more interesting:
> Motorola had a perfect design for the 68k
> processor developement path at the time
> they released the inital MC68000.
> Things just worked.
Yes. I did a fair bit of 680x0 programming over the years. The 680x0
still lives, having become a tiny little embedded computer chip for use
in appliance controllers and the like.
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