DOS ain't dead

3 more (Users)

posted by DOS386, 07.04.2009, 07:00

There are 3 more (minor) bugs:

- After the last cluster is allocated, FSInfo isn't updated, and pretends some free space (usually 1 to 8 clusters), any attempt to use however ends up (after long FAT search) in a file of 0 Bytes and the free space dropped to ZERO as well.

- If the MCB chain is corrupt, EDR-DOS reports "No memory" (apparently my memory modules invoked their motorcycle and drove off ), while FreeDOS is considerably more informative here.

format binary as "COM"
use16
org $0100

   mov ax,ds
   dec ax
   mov es,ax
   xor di,di
   xor ax,ax
   stosw
   ret

- EDR-DOS command file notoriously feeds garbage into INT $21 / AH=$29 "parse from FCB".

---
This is a LOGITECH mouse driver, but some software expect here
the following string:*** This is Copyright 1983 Microsoft ***

Complete thread:

• EDR-DOS bug report - Japheth, 23.12.2007, 10:02 (Users)
  • EDR-DOS bug report - rr, 26.12.2007, 13:53
  • EDR-DOS bug report - david, 26.12.2007, 17:53
  • EDR-DOS WIP 2009-03-28 released | many BUG's - DOS386, 05.04.2009, 04:06
    • EDR-DOS WIP 2009-03-28 released | many BUG's - ecm, 05.04.2009, 09:51
      • EDR-DOS WIP 2009-03-28 released | many BUG's - DOS386, 07.04.2009, 05:39
        • EDR-DOS WIP 2009-03-28 released | many BUG's - Japheth, 07.04.2009, 08:13
        • EDR-DOS WIP 2009-03-28 released | many BUG's - ecm, 07.04.2009, 13:16
          • EDR-DOS WIP 2009-03-28 released | many BUG's - DOS386, 13.04.2009, 09:37
            • EDR-DOS WIP 2009-03-28 released | many BUG's - ecm, 13.04.2009, 14:12
              • unsupp 71xx + DEVLOAD - DOS386, 13.04.2009, 14:26
                • DEVLOAD - ecm, 14.04.2009, 02:45
  • 3 more - DOS386, 07.04.2009, 07:00
    • Even 3 more - DOS386, 13.04.2009, 10:07
      • Even 3 more - DOS386, 13.04.2009, 10:10
      • Even 3 more? - Japheth, 14.04.2009, 17:35
        • Even 3 more? - rr, 15.04.2009, 19:40
          • Even 3 more? - Rugxulo, 16.04.2009, 17:40
            • Question of patience! - Japheth, 16.04.2009, 20:53
              • Question of patience! - Rugxulo, 16.04.2009, 21:23
                • Question of patience! - Japheth, 16.04.2009, 22:00
                  • Question of patience! - Rugxulo, 16.04.2009, 22:05
                    • Question of patience! - Japheth, 16.04.2009, 22:20
                      • Question of patience! - rr, 16.04.2009, 22:26
                      • Question of patience! - Rugxulo, 16.04.2009, 22:52
                      • Question of patience! - ecm, 17.04.2009, 12:29
        • evil will - DOS386, 22.05.2009, 07:56
          • evil will - rr, 23.05.2009, 18:25