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CWSDPMI r7 for FPC (Announce)

posted by Rugxulo Homepage, Usono, 23.11.2010, 00:03

> Okay. But (asking Rugxulo here) what was the disadvantage of r7 again? I
> can only find
> this
> document, which indicates you can (pre)configure r7 not to use 4 MiB
> pages to avoid the issues.

4 MB pages (?? Pentium circa 1993) didn't exist in either DPMI spec (0.9, 1.0), and VCPI (EMM386), slightly older, also was unaware of it. So some apps might break. But CWS has admitted to being very careful not to break complying apps. Badly-written ones? That's a different story, but he doesn't want to accidentally break things in reasonable places. But honestly I don't know how much he utilizes 4 MB by default, it might only be for certain amounts of RAM or certain situations, so honestly I'm not sure it's the default all the time.

 

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