On 7/27/06, [EMAIL PROTECTED] <[EMAIL PROTECTED]> wrote:
   Be careful about painting yourself into a corner.  OGD1 logic testing can 
begin with a limited set of VGA modes, but the final OGA1 design in TRV10/OGC1 
will need to come to grips with providing a capability to power-up running any 
arbitrary video mode -- because some monitors won't work any other way.  And 
remember,  part of the TRV10 application space is embedded systems.  Cthulhu 
only knows what display systems it might have to drive.  Don't assume VESA mode 
compatibility.


Excellent point.  So not only do we need a compact piece of C code to
generate video programs, but we need to make sure that that and the
hardware are general enough to handle just about any practical mode.
One function should take a complete set of timing numbers and generate
a program; another function can be written to infer blanking time from
resolution using a VESA algorithm.  This should all be small enough to
go into a BIOS PROM.
_______________________________________________
Open-graphics mailing list
[email protected]
http://lists.duskglow.com/mailman/listinfo/open-graphics
List service provided by Duskglow Consulting, LLC (www.duskglow.com)

Reply via email to