Re: Apple ][gs VGA Card

[iigs@wam.umd.edu (The Doctor)]

David Empson <dempson@actrix.gen.nz> wrote:
>As far as I know, the only difference between the V20 and V30 is the
>data bus size: the V20 is 8-bit (i.e. 80188 clone), the V30 is 16-bit
>(i.e. 80186 clone).
       ^^^^^
On page 74-75 of the PCT manual (I have version 1.31 of the manual), it
says the V30 is a 8086 compatible processor.  I understand that the 8086
is a 8/16 bit chip.  Now, if the V30 is 80186 compatible, how compatible
would it be to a 286?  I'm looking for a C++ compiler that works on the
PCT, but shareware compilers are for 286 and higher (didn't try it since
I thought it would be incompatible, also I think it requires more than
640k).  C++ compilers for the 8088/8086 are pretty much obsolete.  Sorry
for going off on this tangent.

>I have some NEC data books at work, so I can find out more information
>about these chips if anyone wants to know more.

If those data books can answer how compatible the V30 is to the Intel
equivalents, I would be much appreciated.
>-- 
>David Empson

Geoff
-- 
iigs@wam.umd.edu