Subject: Re: [stella] TIA Audio Polynomials From: Adam Wozniak <adam@xxxxxxxxxxxxxxxx> Date: Wed, 19 Nov 2003 13:57:44 -0800 (PST) |
On Wed, 19 Nov 2003, Eckhard Stolberg wrote: > Isn't C=15 the same as C=7, except that it operates at > CPUclock/114 instead of TIAclock/114? And I think C=7 > uses the same LSFR as C=9. But the output is somehow > combined with a bit that is alternating at the same > speed. I think this is what the "div 2" means that's > listed in the table in the Stella programmer's guide. C=9 is listed as "5 bit poly" C=7 is "5 bit poly / 2" C=15 is "5 bit poly / 6" I don't believe it is a straight frequency division however, or I'd have recognized the output for C=15 as being the same as C=9. The tool I wrote to pick out the patterns is frequency independant. I haven't looked at C=7 yet. I'm away from my home today; I'll look more tomorrow or this weekend. -- adam@xxxxxxxxxxxxxxxx http://cuddlepuddle.org/~adam/pgp.html Will code for food. http://cuddlepuddle.org/~adam/resume.html "The dinosaurs are not around today because they did not have a space program." -- Arthur C. Clarke ---------------------------------------------------------------------------------------------- Archives (includes files) at http://www.biglist.com/lists/stella/archives/ Unsub & more at http://www.biglist.com/lists/stella/
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