5 Dec
2009
5 Dec
'09
5:21 a.m.
On 4 Dec 2009 at 21:03, Geoffrey Reed wrote:
Don't the V20/V30 have the 8080 instructions in
them so you can run
cp/m programs with minimum emulation.
Yes--note that it's 8080, not Z80 or even 8085. There are one or two
small bugs in the implementation, but most things will run okay.
Note that the V40 and V50 chips also have the capability as do a few
other members of the lower V-series.
The emulation, while interesting, is sort of a moot point nowadays,
as even a 75MHz P1 can run rings around a 5MHz V20 executing 8080
code via software emulation. And you can do more things with
software emulation than with the hardware emulation on a V20.
--Chuck