[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: PUBLISHIT4!



In article <ku75884@pro-novapple.clark.net>, jwaak@pro-novapple.clark.net
(John Waak) wrote:

> I have been unable to run PI4! on my Apple IIC equipped with a 512K ZRAM
> memory board and ZIP chip.  The program locks up regardless of whether the
> ZIP is a 4 Mhz or 8 Mhz model, albeit not at identical places in the
> program, although it locks up fore permitting any keyboard or mouse
> activity.  The same program runs fine on an Apple IIC+.  I heard from
> someone that this is a known problem with this program and a zipped IIC. 
> Is there a patch or other workaround that will permit PI4! to run on a
> zipped IIC? 

I had the same problem years ago with a Rocket Chip, an Apple Memory
Expansion Card and PI in a //c. The secret is to run a BASIC startup
program that calls a binary routine that changes the speed of the RAM Card
to 1 MHz (and just the RAM card, not the CPU). Control returns to the
BASIC program that then sets your prefix the way you want it and starts
PI. The routine you need should be somewhere on the utility disk that came
with the Zip chip. If not, then there is a setup utility that will do the
same thing - set the speed of the memory card down to 1 MHz. This seems to
be some kind of system timing problem that affects only programs that
create sys.desktop (PI and AppleWorks).

Hope this helps.

-- 
Eric Schatz ^Views expressed are not necessarily those.^ Apple ][ Forever!

County Of Rockland Apple Branch, POB 268, W Nyack NY 10968
Send us your Apple II product news!