On 8/3/06, Jonas Koelker <[EMAIL PROTECTED]> wrote:
> 3: hsync polarity (1 - positive, 0 - negative) > 2: vsync polarity (1 - positive, 0 - negative) Why not 1 => negative, as that seems to be how [most of the stuff I know how works] works? For instance, two-complement and sign/magnitude ints, as well as IEEE $std_id floats.
I guess in this case, that's because negative polarity seems to be more common in video modes. It's all completely arbitrary (and makes no difference in the logic). Also, when asserting a signal, '0' is considered to be negative assertion and '1' is considered to be positive.
Now, as you've probably forgotten, I wear my C hacker hat, not my hardware designer hat (haven't got one of those). As such, I may have overlooked some reason. But if it's only a question of whether or not to follow conventions, please *do* follow conventions.
No. It's just semantics. It makes no difference in hardware. _______________________________________________ Open-graphics mailing list [email protected] http://lists.duskglow.com/mailman/listinfo/open-graphics List service provided by Duskglow Consulting, LLC (www.duskglow.com)
