Back to home page

DOS ain't dead

Forum index page

Log in | Register

Search:  
Back to the forum
Board view  Mix view

FreeDOS and Protected Mode (Users)

posted by Rugxulo Homepage, Usono, 13.09.2011, 02:37

> So am I wrong to believe that Protected Mode would give me more Heap space?
I wouldn't think so, but perhaps certain things (static strings??) are still limited to a single 64 kb segment. Dunno.

> If I'm not then my app has other 'issues', obviously!
Most likely, but it could be a bug (in FreeDOS or BP7, as neither is perfect and known bugs do exist).

> I did a search on Google for this error and came up with a discussion of
> the same Error 0002 from about 6 years ago on the FreeDOS discussion group
> and which also mentioned BP 7. So the supplementary question is: are there
> issues with FreeDOS and/or BP 7 with respect to Protected Mode?
I wouldn't think so. But perhaps you had other conflicting software (try a cleaner boot without a lot of TSRs or drivers or memory managers). XP's NTVDM is pretty good re: 16-bit pmode (DPMI 0.9), but perhaps it couldn't handle whatever (rare but happens sometimes). But since you tested in raw DOS also, I'm skeptical. I assume you weren't shelling out from a 32-bit DPMI app or anything goofy like that, as obviously that's unsupported.

Try creating as small a testcase (source snippet) as possible and try again. Try to isolate the problem. Also be sure (in DOS) to load HDPMI16.EXE first and see if that helps. (Otherwise, sadly I can't help, I don't have BP7.)

Post reply
 

Complete thread:

Back to the forum
Board view  Mix view
22762 Postings in 2122 Threads, 402 registered users (1 online)
DOS ain't dead | Admin contact
RSS Feed
powered by my little forum