Re: C64GS Success!

From: William Levak (wlevak_at_cyberspace.org)
Date: 2000-06-10 03:51:01

On Fri, 9 Jun 2000, William Levak wrote:

> The HESMON cartridge should allow me to do quite a bit of experimenting
> with the system, but at this point it looks like you can have a 64GS by
> replacing the kernal in a C64.

The HESMON cartridge can acces the disk drive.  Attempts to access the
tape drive produce an "IO ERROR #5".

Upon examining the memory, I discovered the Basic warm start vector at
$0302 had been set to $F72E.  I changed it to it's normal $A483 and exited
HESMON.  

C64 Basic!!!

I can load and execute programs just like a standard C64.  The only
difference I have found so far is the tape drive.  Any attemp to access
the tape drive produces a "device not present" error.

$F72E is where the tape routines normally are.  It looks like they have
been replaced by the Games System screen.

There is also a copyright notice at $FC00 dated 1990.





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