Re: tdfx and DDC2

On Tue, 30 Aug 2005, Ian Romanick wrote:
> Tim Roberts wrote:
>> Michael wrote:
>>> I don't see why they should be enabled - they're PC-specific and even
>>> with x86 emulation they would be pretty much useless since you're not
>>> too likely to encounter a graphics board with PC firmware in a Mac ( or
>>> other PowerPC boxes )

>> Wrong.  No hardware manufacturer in their right mind would build a
>> Mac-only PCI graphics board, with the possible exception of Apple.
>> They're going to build a generic graphics board that works in a PC and
>> by the way also works in a Mac.  Such a board will have a video BIOS.

> That is 100% untrue.  Take *any* AGP or PCI card, with one* exception,
> made for the Mac and it will not work in a PC.  Macs (and Suns and IBM
> pSeries) use OpenFirmware (byte-code compiled Forth) and PCs use
> compiled x86 for their respective firmwares.  Neither one works with the
> other.

Not entirely true.  What you say only matters for the primary head, and only 
because most manufacturers package only one image (x86, EFI, OpenFirmware, 
etc) in their PCI ROMs.

Marc.

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