18 Sep
2006
18 Sep
'06
10:12 p.m.
If you add the Z8, then the number of embedded designs
using this chip
architecture is huge indeed.
The Z8 has nothing in common with the F8
But my reference was to "Personal Computers" using the F8 as the CPU. The
"Channel F" and VideoBrain are the only ones that come to mind.
and it's remarkable that there are even these two. From a programmers point
of view the F8 was a real abortion: the only processor that I've heard of in
which a Jump corrumpts the contents of the accumulator.
(When I wrote an emulator for it I asked the "customer"* whether they
prefered the emulator to provide the same (but undocumented!) corruption as
the real chip, or a different "undefined" value. They though the latter was
safer.
* The EE department at the University.)
Andy