GeForce emulation in Bochs (2d)

[Andrew-R]

Not directly related to PPC macs, but emulating desktop nvidia cards was and still is a tough task, so every pointer might help?

GeForce emulation (#562) · bochs-emu/Bochs@34ed054

This PR contains the current state of Vort's GeForce emulation. It implements basic support for three GeForce models. Most of the 2D features are present, but 3D is still to do. Several Windows...

github.com

 

[repairedCheese]

You know, I was wondering if PCem had any Nvidia card support, and the answer is absolutely no. They do emulate the 3dfx Voodoo and Voodoo 2, and some very, very old ATI cards, but it looks like Bochs is targeting running Windows 7, and the Voodoo 2 is about a decade older.

Which is all to say that I can appreciate just how hard emulating an Nvidia card is.

 

[Project Alice]

It looks like its an FX 5900 too? That's a pretty wild GPU to be able to emulate at all

 

[Andrew-R]

yeah, but 3d part right now at "it can draw untextured triangle, sometimes". Still, very huge.

I hope additional info from RPCS3

Commits · RPCS3/rpcs3

PlayStation 3 emulator and debugger. Contribute to RPCS3/rpcs3 development by creating an account on GitHub.

github.com

will help with shaders and stuff, if it come to this.

Bochs discussion with link to bioses:

GeForce emulation · bochs-emu Bochs · Discussion #496

Bochs is a useful tool for learning how computer hardware and software work. I was using it successfully for figuring out how DOS and Windows 95 games interact with hardware. However, starting with...

github.com

 

[Project Alice]

Bochs discussion with link to bioses:

GeForce emulation · bochs-emu Bochs · Discussion #496

Bochs is a useful tool for learning how computer hardware and software work. I was using it successfully for figuring out how DOS and Windows 95 games interact with hardware. However, starting with...

github.com

This might not be the place to discuss this, lol. But The FX series 100% works in Windows 7. In fact, I had the Windows 7 Beta and later RC, and later release, back in the day on my old Athlon XP desktop. It was a GeForce FX 5200, and Aero works too.

The FX series is the oldest one that does support Vista/7. I just thought it was funny they mention that it doesn’t.

 

[PowerPC74]

Not directly related to PPC macs, but emulating desktop nvidia cards was and still is a tough task, so every pointer might help?

GeForce emulation (#562) · bochs-emu/Bochs@34ed054

This PR contains the current state of Vort's GeForce emulation. It implements basic support for three GeForce models. Most of the 2D features are present, but 3D is still to do. Several Windows...

github.com

That's pretty cool, if only someone could port it to Qemu.

I've been trying to get the GF6600/GF7800 working in PCI Passthrough with OpenBIOS.....

Using @joevt Old World Patched ROM's the FCode will complete to end0 but we never get the EDID of the connected display. It's the same with the RX1950/RX1900 FCode completes to end0 but not EDID.

Joe's version of toke won't build on Linux, so I really could use GF emulation on Qemu to speed up testing. I use Joe's version of toke to build .4th code into FCode ROMs for these cards on the macOS, then I have to transfer them to my Linux box to test. With GF emulation I could just test in Qemu on the macOS until I get the EDID or see where it is failing.

 

[joevt]

Joe's version of toke won't build on Linux

I haven't tried building it on Linux.
Why won't it build on Linux? It's not very complicated C code. It has a simple make file.

cd "OpenBIOSStuff/detok"
make clean
make 2>&1