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EDR-DOS "patch" tool (Developers)

posted by danielnice(R), 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.


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