Re: Playing samples on both new and old SIDs

From: Richard Atkinson (Richard.Atkinson_at_cl.cam.ac.uk)
Date: 2000-07-27 12:52:11

On Thu, 27 Jul 2000, Marko Mäkelä wrote:

> And while we are at it: has anyone analyzed the VIC-20 waveforms?  I think
> the oscillators there can have some internal state that cannot entirely be
> reset via the CPU accessible registers.

There is a sound enable bit, but perhaps it doesn't reset the divide-by-n
counters. I wrote a routine to play samples on the 4 bit volume control
with all oscillators off and this worked well (even with the display on
because there are no badlines) but apart from that I can't think of any
neat hacks to try with the VIC. The lack of pitch resolution on the
oscillators is a serious drawback IMHO.


Richard

-- 
Richard Atkinson
Software Engineer
Tenison Technology EDA Ltd

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