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Try using FIXCAS.EXE (available here at the archive under Downloads\Tools) on the .CAS files before converting to .WAV with DC.EXE.

e.g.
FIXCAS FROGGER.CAS FROGGER2.CAS

That's much better. The original PDF document was not so easy on the eyes.

Thanks Simon!

OK, here's my double speed machine code test... We now have a 100% machine code program running for nearly 22 minutes before exiting. This first program ran OK for the full 22 minutes, but failed to return to BASIC. After pressing the reset button, I loaded Encoder and dissasembled the memory to fin...

Theres a couple of games out there that patched the reset vector to issue this instruction if anybody pressed the reset button in an attempt to prevent hacking.... didn't work as we just wrote a custom loader routine to get the game into RAM and then mess with it !! Fun Days! :D Do you remember the...

Heh, no. I did stumble across an instruction that just reset the machine while looking into that sort of thing as a kid. http://www.burgins.com/m6809.html suggests it's $3E. I know about that one, and it can be handy as it can save some code, but its not always available under emulation. :( I have ...

Simon, I managed to find the 64K upgrade document. I have mailed it to the address above.

Vdc, you can remove those large .jpg files from this thread now.

Thanks for the feedback Ciaran! :) This morning at 4.00 am I started program one from above with a for next count of 8806000 for 14 hours. It exited exactly on time this evening at 6.00 pm with a final displayed time of 844.56 minutes. 8-) After the test, without switching off the computer I loaded ...

I have been doing some more testing at double speed... I ran the following program for nine hours without any problems whatsoever. I changed the count in the for next loop from 100000 to 5661000 to set the program up for its nine hour marathon. It ran for exactly nine hours and exited from double sp...

Thanks for the update, Admin Sparkplugs! the doc is a scanned image pdf, so is big, 6MB zipped, so I can't upload. Will work on it Vdc300, Simon, thanks taking the time to help with this. Vdc, could you please upload the pdf to http://www.sendspace.com/, http://files.mail.ru/eng, http://localhostr....

I have noticed that the two Dragon 32's in my collection that run at double speed for long periods without problems have OKI RAM chips installed. One has 8 x OKI M3732L-20RS, and the other has 2 x OKI M3732L-15RS and 6 x OKI M3732H-20RS chips. Both Dragons seem to run very cool, and the one with 8 x...