[Coco] [Color Computer] 512K and ADOS 3.0

[Robert Gault]

It is not quite that simple. The Coco3 memory can be switched in backs 
of $2000 using the addresses $FFA0-$FFAF. What you will need to do is 
switch memory to a value equivalent to 512K RAM, read a byte value, 
write to that byte value, read to see that it changed, switch back to 
the original $2000 byte bank, and read the same byte to see that it is 
the original value.

The above should be done with interrupts turned off and is best handled 
with a short ml program. You must select a bank that will not switch out 
  your program code nor vital system code. Typically $FFA3 could be used 
to switch memory in the $6000 - $7FFF region.

If you want the challenge of writing a test program, use the above or 
ask for more info. I could send you one of my own programs to use, if 
the shaw address is a good one for sending direct e-mail. You would need 
to be able to transfer a binary file from your Browser to your Coco.

Basil Fitze wrote:
> What is the poke or pokes to indicate the RAM I just got a Coco 3 on
> Ebay with the 512K upgrade but just want to check it. 
> 
> Ados 3.0 the person who wa going to send me the manual and disk please
> contact me. 
> 
> Also anyone want to trade a Coco 3 for a Coco 1 64K
> 
> 
> 
> 
> 
> 
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