Korg Poly800/EX800 Users

Getting a stock Poly to run our own code would be a neat trick!
What is the CPU again, is it something gcc will compile for?

If you can code up a platform layer in asm, with hooks into the hardware
functions we need, I'd volunteer some code in C.

Tim


On Fri, 6 Oct 2006, patrioticduo wrote:

> Hi Poly Fans,
>
> Well not much of an update but how about a little confidence booster.
>
> Summer is OVER! And that can mean only one thing. Lot's of time will
> be available for me (and hopefully you) to continue disassembly of the
> Poly.
>
> However, I'm beginning to think that it might be just as much fun or
> even more fun to just rewrite the code from the ground up! In fact, I
> was thinking along the lines of making the project an open source
> project. You see, my kids are homeschooled so I am always being asked
> what I am up to in my little lab. And I was thinking that it would be
> extremely educational for my kids to actually learn what it's like to
> program a microcontroller in a synthesizer situation.
>
> Although I think there is still a lot to be gained from me continuing
> to disassemble the Poly code, I am contemplating creating a little
> boot loader that will allow me to send an entire RAM image down MIDI
> (not even sysex but a specially crafted upload) to the Poly. Then,
> once the code is downloaded the Poly would boot the code. This would
> give us the advantage of being able to write whatever we like on an
> assembler, heck we could write it all in C if we like. And once we are
> happy that the code is solid and bug free (running in RAM) then we can
> commit the code to EPROM.
>
> So far, I've probably spent about 10 to 15 hours on disassembly. It
> doesn't sound like much but what I've learned in that time is that
> disassembly without a memory map is really, really difficult. And the
> other big thing I've learned from it is that it might be easier to
> just rewrite the whole thing. I mean, who the heck cares about the
> sequencer anyway. So why bother trying to disassemble that? Except
> that, to disassemble the rest means disassembling it all. Kind of painful.
>
> The only question is, how many software engineer people do we have on
> this list who would be willing to contribute valuable and precious
> time to coding in assembler or C?
>
> If we went the open source route then I would just sell the hardware
> retrofit kit and make the code free.
>
> Mike.
>
>
>
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
>
>
>