[Open-graphics] VGA BIOS

[Paul Brook]

> > In practice it may be easier to do everything with a fire and forget DMA
>
> What do you mean "a fire"?

"fire and forget".
i.e. you put your commands in a DMA buffer somewere, and have the card process 
them asynchronously. You use properties of the command processor (explicit 
fences or implicitly processing in submission order) to queue up dependent 
commands. The main CPU can then go do something else (e.g. starting to submit 
the next frame/object) without having to wait for previous commands to 
complete.

Paul