Re: Accessing the C64 memory between 65xx chips operations.

On 4/19/20 9:52 PM, tokafondo wrote:
> Ok, so the only way to do something more **COULD** be disabling the 6510, and
> have an external CPU like the 65c02 running at DOT clock speed or DOT/2 or
> DOT/4, that would be waiting for the VIC to let it have access to the
> memory, and try to take advantage of those 500ns the most it can, with what
> the DRAM would be able to do in that time...

Not really, no... You still need the I/O-port of the 6510 to run the C64 
and again, the timing for the DRAMs and multiplexers is controlled by 
VIC. Since VIC uses multiplexed addresses to access the RAM, you can't 
get rid of those.

  Gerrit