DOS ain't dead

Is there some DOS floppy utility that doesn't rely on DMA? (Developers)

posted by bretjohn  , Rio Rancho, NM, 30.03.2024, 01:12

I could be wrong, but I don't think any standard BIOS implementation would use DMA. The only implementation of DMA I think I've ever used for floppies was the venerable FastBack hard drive backup program. DMA helped the data get transferred to the floppies very quickly.

I know in my USB driver for floppies where you can't use DMA (DMA won't work on USB-attached devices without a LOT of virtualization) and it seems to work fine with the few programs I've tested. As a result, the programs can't be bypassing the BIOS and using DMA. I really don't think your problem is DMA, but I can't say for sure what it might be.

Complete thread:

• Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 23.03.2024, 16:56
  • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 28.03.2024, 00:57
    • Is there some DOS floppy utility that doesn't rely on DMA? - Zyzzle, 28.03.2024, 02:44
      • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 28.03.2024, 05:25
      • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 28.03.2024, 05:33
        • Is there some DOS floppy utility that doesn't rely on DMA? - rr, 29.03.2024, 13:57
        • Is there some DOS floppy utility that doesn't rely on DMA? - Oso2k, 29.03.2024, 23:14
          • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 30.03.2024, 06:46
        • Is there some DOS floppy utility that doesn't rely on DMA? - Zyzzle, 30.03.2024, 02:27
      • Is there some DOS floppy utility that doesn't rely on DMA? - rr, 29.03.2024, 14:11
        • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 30.03.2024, 06:42
  • Is there some DOS floppy utility that doesn't rely on DMA? - bretjohn, 30.03.2024, 01:12
    • Is there some DOS floppy utility that doesn't rely on DMA? - ecm, 14.04.2024, 19:00
      • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 15.04.2024, 17:29
  • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 01.04.2024, 15:45
    • Is there some DOS floppy utility that doesn't rely on DMA? - Laaca, 01.04.2024, 17:12
      • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 01.04.2024, 20:33
      • Is there some DOS floppy utility that doesn't rely on DMA? - RayeR, 03.04.2024, 03:06