Mail Archives: djgpp/1997/07/25/02:17:31
>No SIR!
>VESA is a software API. SDD >is< VESA 2.0, not an emulation.
>The difference between SDD and your card is that SDD goes TSR, but your
>card is in ROM from the start.
>
>Guess why it's in ROM, folks.. it's software :)
>VESA is an API, which means that instead of having a gazillion different
>calls to put a pixel on a screen, you only do one, and VESA picks the
>right one for your video card.
>
>VESA translates, but not from 2.0 > 1.2 - it translates VESA calls to
>direct hardware writes.
That's right but...
When a board suports Vesa 2 Vesa calls to direct hardware writes but a
board only supports Vesa 1.2 and we use a emulator then the emulator
translates Vesa 2 Calls to Vesa 1.2 and send the information to the
board that calls direct hardware calls. As you see the emulator spends
time converting from Vesa 2 to Vesa 1.2
P.S: Sorry for may lausy english
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Ricardo Cunha
myke AT cyberdude DOT com
http://www.geocities.com/Area51/Cavern/7471
ICQ: 2217830
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