sorry for the late reply -- I got really backed up on email. I can't
remember exactly what you have to do to get it to work, but it won't
work by burning the PRG.

below is a link to an older version that I think should work.

I had bad luck using the BASIC ROM method because it was too fragile.
It was too easy for the socket adapter to come a little loose from the
socket, especially when traveling. I got one of those adapters that
lets you use two cartridges at once to use the Cynthcart and SID
Symphony for stereo.

http://qotile.net/temp/cnth1031.basic

-paul

mdzron wrote:
>
> Hello chipsound fellows ;)
>
> I just got on the hook with C64 Cynthcart - supercool, I love it.
> Now I like to mod a breadbox just for using Cynthcart and therefore
> make use of the stated
> "replacement for the C64 BASIC ROM (so the C64 always boots to the
> Cynthcart)".
>
> I made a working 2764 EPROM adaptor (cloned C64 BASIC ROM works off
> that slot already)
> but now I'm in trouble how to get the cynth11.prg starting from the
> EPROM. What has to be
> done to get the Kernal boot sequence to start the program? Is it just
> adding a proper header
> before the program starts and if so, what's the vectors to be applied
> there?
>
> I just couldn't find any resource about replacing the C64 BASIC ROM
> with some other
> program so I was wondering if anyone here knows little more about this
> issue.
>
> TX in advance and bleeps to you guys :)
>
> ron.
>
>