[FEATURE REQUEST] Early NVIDIA graphics card emulation

[CRTRevivalDreamer]

I'd like to have NVIDIA's NV1, RIVA 128 and RIVA 128ZX emulable on VARCem,
so here are their respective datasheets.
STG2000.pdf
STG17××.pdf
RIVA128.pdf
RIVA128ZX.pdf

[waltje]

It took me some time to get to this, sorry.

There have been two, and possibly three attempts at writing a working emulation for this family of cards so far.

Although the "basic card" worked, there were still major problems with getting the accelerator to work, mostly because there was no access to proper documentation.

If the documents you provided can solve that situation, I am willing to bring the code back for further development.

Fred

[CRTRevivalDreamer]

The first pair of PDFs is for the NV1 graphics chipset;
but the last is for the RIVA 128 and RIVA 128ZX graphics chips.

[aquaboxs]

@waltje I found this nVIDIA documentation from envytools (nVIDIA documentation) that has NV3, and likely MMIO registers has PMC, PGRAPH, PFIFO, and then more registers. Will you bring the code back for development? maybe. :/