> >> This is a cool offer! Neil has worked out many of the problems of
> >> using samples to emulate analog sound boards.
> >> The source won't be usable on the Scenix, but the logic flow will.
> >Why not? Is it not C?
> I believe you can get "C" for the Scenix, but Scenix "C" is going to
> work a bit differently than anything that runs on a PC.
Oh, I get it. Scenix is a device, not an operating system. ;-) It just
sounds like another UNIX.
> No Data Stack. (Passing variables to a subroutine is tricky for the
> compiler and steals some of your RAM variable space.)
Sounds like the 8051 C compilers.
> Very limited RAM memory (don't even think of an array in RAM!,
> like a pre-buffer for mixing!)
Like the 8051!
> Another IRQ task could supply the data to the DAC as needed, with a
> foreground task doing the mixing/level shifting, keeping a very small
> (4 to 8 byte) buffer full for the DAC.
It could do on-the-fly mixing. There's no reason to have a post-mix
buffer. The only reason that's done now is because that's what all OS's
want. A simple add+add+add+add+add/clip would work nicely (and does, I
might add).
> the CCPU), doing the waveform playing logic, the mixing, etc. and
> sending the results back to the scenix which could buffer and play the
> sounds out the DAC. An 8051, Z-80 clone, etc.
Why not use a Dallas 320? They're 3 clock and go up to 40MHZ! I don't know
about pricing, though. We'd have to bankswitch the snot out of things, but
I don't think it's all that evil.
> But however it's done, I'm willing to work out all the interface logic
> for all the sound boards.
And I'm willing to write the code...
-->Neil
-------------------------------------------------------------------------------
Neil Bradley Synthcom home : http://www.synthcom.com
Synthcom Systems, Inc. "Mechanical engineers build weapons. Civil engineers
ICQ # 29402898 build targets." - Unknown
Received on Wed Jun 23 14:48:52 1999
This archive was generated by hypermail 2.1.8 : Fri Aug 01 2003 - 00:31:43 EDT