[Coco] reading the ROM on a CoCo 3

[jdaggett at gate.net]

Mike 

There is not. Unfortunate but it does make sense. The original demands for 
the ROM Enable output from the S-Bus was a read only condition. 
Therefore the R/W line gates this signal and prevents writing to ROM  
memory range when the R/W line is asserted low. The only way out is to 
redo the GIME or to redo the hardware and bypass the GIE for ROM area 
select.

james


On 29 Jul 2006 at 11:00, Mike Pepe wrote:

> thanks for all the help guys,
> 
> I was able to at least verify that the CART ROM enable output does not go
> low during a write cycle. This obviously precludes being able to write to
> the EEPROM in-socket.
> 
> Unless there's a GIME register somewhere that could be tweaked, what I
> want to do isn't apparently possible without a major undertaking.
> 
> -Mike