DOS ain't dead

Bug in JEMM (Developers)

posted by Japheth , Germany (South), 16.02.2023, 05:21

> Japheth, what do you think about JEMM storing and restoring the size of
> XBDA (first byte) when returning to realmode and FASTBOOT?
> When I load JEMM, my BIOS uses XBDA to read from disk and clears the first
> byte of it. This only happens when VDS is enabled because with the NOVDS
> option this is not the case.

I also have a machine that clears the first byte of the XBDA. Is this a known bug or even documented behavior?

---
MS-DOS forever!

Complete thread:

• Bug in JEMM - CandyMan, 10.02.2023, 10:04 (Developers)
  • Bug in JEMM - Japheth, 10.02.2023, 13:10
    • Bug in JEMM - Japheth, 11.02.2023, 03:37
      • Bug in JEMM - CandyMan, 15.02.2023, 17:38
        • Bug in JEMM - Japheth, 16.02.2023, 05:21
          • Bug in JEMM - CandyMan, 16.02.2023, 12:07
          • Bug in JEMM - CandyMan, 23.02.2023, 16:47
            • Bug in JEMM - Japheth, 23.02.2023, 17:30