[OpenBIOS] PIC Passthough( VGA )

[Jd Lyons]

> On Dec 17, 2017, at 9:51 PM, Tarl Neustaedter <tarl-b2 at tarl.net> wrote:
> 
> On 2017-Dec-17 21:25 , Jd Lyons wrote:
>> dev /pci/pci10de,141 at 10 works as expected.
>> 
>> But, I’m not sure about the next command, should it be
>> 
>> : open true ; with a space between : and open, that returns "open is not unique".
> 
> Oh (yes, the space is needed. ": " says the next token is the name of a
> method to define). That means it already has an open method, that
> shouldn't happen unless it has already interpreted an FCode.
> 
>> Maybe running up against the generic FCode that Openbios loads for all VGA devices, it already has the open word?
> 
> Could well be.
> 
> Since it already has an open method, try:
> 
> " /pci/pci10d3,141 at 10" open-dev
> 
> (I had it backwards before. You need the string as an argument to open-dev).
> 
> Assuming that works, try "words" in there to see what's defined. If only
> open is defined, then try doing the load and byte-load operations. If it
> has a bunch of methods, that suggests that that openbios' internal fcode
> has already been applied to it, and you'll have to disable that somehow.
> 

It has the open and close words, really two open words now, because we added one.

I’ll rebuild Openbios and edit out the:

feval("['] vga-driver-fcode 2 cells + 1 byte-load”);

That should keep the Fcode for VGA devices from loading…..

> 
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