Re: SS20/cg14 custom resolutions

[Michael Lorenz <macallan%netbsd.org@localhost>]

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Hello,

On Aug 8, 2008, at 11:13 AM, der Mouse wrote:

> > > (I'm not sure why the vertical retrace frequency is given, since it
> > > can be calculated from the other values.)
> > Sanity check?
>
> Perhaps, but I didn't see any code doing any such checks.

Ah well, maybe they intended to use it that way but never did? Who  
knows.

> Of course, I also didn't go through all the ROM code.  But I've also
> tried assorted alternative parameter sets, and I think at least a few
> of the ones I've tried have included "wrong" vertical retrace
> frequences, and I haven't seen anything noticing the discrepancy.

Did you by any chance see anything that deals with the SX? I'm almost  
convinced that they use the SX for scrolling - if we can figure out  
how to do that we're already half way to an accelerated console and  
X11 driver.

have fun
Michael

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