[Coco] Geranium Diode Upgrade

[Chuck Youse]

On Thu, 2008-07-10 at 17:09 -0400, Chuck Youse wrote:
> On Thu, 2008-07-10 at 14:03 -0700, Mike 0rtloff wrote:
> 
> > The ACIAPAK driver requires this interrupt signal 
> > to operate properly, although the MODPAK driver 
> > does not. The signal in the CoC03 is routed 
> > througi1 the GIME chip, which every so often does 
> > not pass it to the CPU. 
> 
> Am I reading this right when I infer that the GIME has some sort of bug
> w/r/t its interrupt 'controller'?  That would be a rather nasty flaw ..
> 
> C.

Hmm, ok, after looking at the schematic of the Coco 3 my concerns have
increased.  This modification bridges CART* straight to the IRQ* pin of
the processor, bypassing the GIME entirely.  

Any ideas what the actual GIME bug was?  Anyone?

C.