On 2/26/07, James Richard Tyrer <[EMAIL PROTECTED]> wrote:

There is a problem with this.  Although the original (IBM) VGA hardware
was totally documented right down to individual register bits, the VGA
BIOS calls are fully documented, and the VESA video BIOS extension (and
other VESA stuff) are fully documented there is, AFAIK, no free
implementation of either the VGA hardware or the video BIOS.

How to write a BIOS is well-enough documented, and I've done it before
(as has Andy).  Also, Patrick helped identify most of what we need to
know about VGA in order to implement it correctly.

The text mode will come first, and that's much more straightforward
than the graphics mode.

--
Timothy Normand Miller
http://www.cse.ohio-state.edu/~millerti
Favorite book:  The Design of Everyday Things, Donald A. Norman, ISBN
0-465-06710-7
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