Re: Does anyone has text console or framebuffer working on SC1200 without VGA-BIOS ?

[Bernd Mödeker]

> > the internal vga pci device at 0:12.4 should be found when you write
> > 0x80009400 to pci index reg
> > 0xcf8. After that the value 0x0504100b should be returned at 0xcfc as

vendor
> > id (0x100b) and device id (0x0504).
> > After single stepping this return value AX is set to 0x4000 and not

0x100b.
> > Unfortunaly EAX is not printed:
> >
> > c000:0124 ed                  IN        EAX,DX
> > c000:124 -
> >         AX=4000  BX=0000  CX=0000  DX=0cfc  SP=ffea  BP=0000  SI=0000
> > DI=0000
> >         DS=0000  ES=c000  SS=0030  CS=c000  IP=0126   NV UP DI PL ZR NA

PE
> > NC
>
> you're not going to get eax in an 8086. This is an issue.

ok this seems to be a fact
> I wonder if there is an enable for the vga device that we are not setting.

I could'nt follow. What do you mean?
Bernd