DOS ain't dead

EDR-DOS "patch" tool (Developers)

posted by danielnice, 24.01.2017, 22:13

> Patch is vanilla DJGPP patch.
>

Thanks for the info on PATCH.

My next problem is that I can't find where DR-DOS calls SHARE.
I found where is says it is calling it, but removing this did not prevent SHARE from being called during read/write.

Oddly enough, DR-DOS seems to enter SHARE at the same point no matter which DOS function is being called (Open, Close, Read).

I wrote a test where I fill SHARE's memory with Int 03h (debug breakpoint) instructions. Then I call DOS to open a file and see where I end up.

I want to make it NOT call SHARE during read/write but to still call it for Open, Close. This way, file locking still is enforced, but record locking is not.

If anyone is familiar with the DR-DOS source code and has some ideas, that would be much appreciated.

Complete thread:

• EDR-DOS "patch" tool - danielnice, 24.01.2017, 16:51 (Developers)
  • EDR-DOS "patch" tool - Laaca, 24.01.2017, 21:14
  • EDR-DOS "patch" tool - rr, 24.01.2017, 21:40
    • EDR-DOS "patch" tool - danielnice, 24.01.2017, 22:13
  • EDR-DOS "patch" tool - Torsten, 23.04.2017, 22:41
    • EDR-DOS "patch" tool - danielnice, 24.04.2017, 19:34
      • EDR-DOS "patch" tool - Torsten, 26.04.2017, 20:44
        • EDR-DOS "patch" tool - danielnice, 09.05.2017, 17:07
          • EDR-DOS "patch" tool - Torsten, 21.05.2017, 23:54