DOS ain't dead

Is there any support for standard BIOS video modes? (Developers)

posted by Laaca , Czech republic, 03.02.2021, 18:21

> I'm curious is there any development for FreeDOS, which allows to use old
> BIOS video modes on modern video cards, anywhere? It is sad that modern
> video cards can't easily be switched to use BIOS modes 4, 5, 6, 0xd, ... :(

Yes, you are right. My Geforce RTX 2060 does not support CGA modes!!!
But to your question - the working solution is to use DosBox from DOS (see dedicated thread in this forum).
In pure theory could be _maybe_ possible to setup the CGA modes using direct port settings (without using BIOS services). I have somewhere a source for such setting for VGA modes. But I think (although not for sure) that it does not cover the CGA modes.

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DOS-u-akbar!

Complete thread:

• Is there any support for standard BIOS video modes? - Vol, 03.02.2021, 15:54 (Developers)
  • Is there any support for standard BIOS video modes? - Laaca, 03.02.2021, 18:21
    • Is there any support for standard BIOS video modes? - RayeR, 05.02.2021, 18:40
      • Is there any support for standard BIOS video modes? - Laaca, 06.02.2021, 11:57
        • Is there any support for standard BIOS video modes? - RayeR, 09.02.2021, 00:34