Overview Features Coding ApolloOS Performance Forum Downloads Products Order Contact

Welcome to the Apollo Forum

This forum is for people interested in the APOLLO CPU.
Please read the forum usage manual.
Please visit our Apollo-Discord Server for support.



All TopicsNewsPerformanceGamesDemosApolloVampireAROSWorkbenchATARIReleases
Questions and Answers for using ATARI TOS / FREE MINT

NVDI Drivers (wip)

Peter Persson

Posts 12
16 May 2022 12:40


Howdy,

I've reverse engineered some NVDI drivers for misc. graphics cards and improvised a SCREEN.SYS replacement.

GIT repo is here:
EXTERNAL LINK 
Still stuff to solve, bugs to fix. It's supposed to be used with OLs EmuTOS fork for the V4.



Cyprian K

Posts 26
16 May 2022 13:22


cool,

to be honest I mistakenly thought NVDI source code was available somewhere on GitHub


Peter Persson

Posts 12
16 May 2022 13:39


There are rumours about it being fully reverse engineered, but I'm innocent to that.

I just disassembled some drivers for the pixel formats I wanted, removed hw dependent code and rebuilt it.

V4SCREEN.SYS is based solely on guesswork however.


Antony Coello

Posts 153
16 May 2022 20:15


Excellent work!

I wonder how much hassle it would be to get them working on the v2 cards?


Olivier Landemarre

Posts 147
17 May 2022 22:30


Really great job, a big step for Atari support on V4

posts 5