DOS ain't dead

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

posted by RayeR , CZ, 15.04.2024, 17:29

> Actually, floppy diskette access seems to be a case where it's normal for
> the ROM-BIOS to use ISA DMA to access the disk. Consider
> the
> description of the int 13h error code 09h:

Yes. But it seems there was a few implementations of BIOS that didn't use DMA, I read that some HP Omnibook. That was probably the reason why Linux kernel floppy driver implemented both DMA and noDMA methods. So it's possible, I got it working under Linux (some floppies had problems but it's probably caused by theirs age).
I'm still looking for reliable noDMA implementation that can be used under DOS. Linux floppy driver has some depencies to Linux kernel and code pointed by Laaca from the doslib works very unreliable. I didn't have time to debug it yet...

---
DOS gives me freedom to unlimited HW access.

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