Re: RS-232 on VIC-20

From: MagerValp (MagerValp_at_cling.gu.se)
Date: 2004-06-22 08:39:34

>>>>> "MM" == Marko Mäkelä <marko.makela@hut.fi> writes:

MM> No. In 2 MHz mode, there are no badlines, but the system will run
MM> at 1 MHz during memory refresh (5 slow cycles on every
MM> rasterline), making the total number of cycles per raster line
MM> equal 63*2-5 on PAL systems and 65*2-5 on NTSC. Maybe MagerValp
MM> was thinking the TED, which doesn't show garbage on the screen,
MM> but slows down the processor to 1 MHz during graphics DMA. The TED
MM> also has two badlines for every line of text.

Actually, I don't know what I was thinking about. Heh.

-- 
    ___          .     .  .         .       . +  .         .      o   
  _|___|_   +   .  +     .     +         .  Per Olofsson, arkadspelare
    o-o    .      .     .   o         +          MagerValp@cling.gu.se
     -       +            +    .     http://www.cling.gu.se/~cl3polof/


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