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Re: IIgs ROM 01 & Z80+

On 10/04/2010 01:31 AM, KP wrote:

I have a Z80+ card in Slot 4 of my IIgs ROM 01.

When I use it solely as "Your Card," it works.

I then switch to "Mouse Port" for a GS/OS application, reset, run the
application, and the mouse works fine.

I then switch to "Your Card," reset, boot a CP/AM disk (either 5.1.1
or 4), and CP/AM doesn't properly function.

Turning off the IIgs and then turning it back on does not fix the
problem; the Z80+ and/or CP/AM continue to malfunction.

Opening the IIgs, re-seating the card, and re-booting the machine set
to "Your Card," and I get another successful use of the Z80+/CP/AM.
But as soon as I temporarily switch it to Mouse and then back again, I
get the same problem.

Does this sound like anything familiar to anyone on here?  I am going
out of my mind trying to figure out what I need to do to permanently
fix this.
The traditional softcards played very fast and loose with timing margins at best. I'm actually more surprised at the fact that it _ever_ works reliably in a IIGS!