drawing words?

[Programmingkid]

Is it possible to add graphic words that can draw shapes to OpenBIOS? Does OpenBIOS have these words already? I was studying Apple's implementation when I discovered these drawing words.

[Tarl Neustaedter]

On 2012-Sep-10 22:59 , Programmingkid wrote:
> Is it possible to add graphic words that can draw shapes to OpenBIOS? Does OpenBIOS have these words already? I was studying Apple's implementation when I discovered these drawing words.

You may not have a video screen - IEEE 1275 is supposed to work on 
serial lines.

[Andreas Färber]

Am 11.09.2012 05:19, schrieb Tarl Neustaedter:
> On 2012-Sep-10 22:59 , Programmingkid wrote:
> > Is it possible to add graphic words that can draw shapes to OpenBIOS?
> > Does OpenBIOS have these words already? I was studying Apple's
> > implementation when I discovered these drawing words.
>
> You may not have a video screen - IEEE 1275 is supposed to work on
> serial lines.

Aren't those words defined on the VGA node? I remember OpenBIOS exposing
less words than I saw in the specs.

Andreas

[Tarl Neustaedter]

On 2012-Sep-11 11:48 , Andreas Färber wrote:
> > > You may not have a video screen - IEEE 1275 is supposed to work on
> > > serial lines.
>
> Aren't those words defined on the VGA node? I remember OpenBIOS exposing
> less words than I saw in the specs.

There are, but FCodes should not depend on them. The should work on a 
serial line (at least, back in the ieee 1275 days that was the 
standard). The VGA stuff was generally intended for printing a pretty 
banner.