Mail Archives: djgpp/1997/04/30/01:00:50
Ron Stawicki wrote:
>
> 1) WIN95 provides a virtual memory manager; is this just specific to
> windows, or does it tie in?
>
> 2) WIN95 has native DPMI, or is that what is provided by EMM386?
Win95 has its own completely separate DPMI host, and this is what DJGPP
programs use if they find it in the environment. DJGPP programs only
load cwsdpmi if they do not find another DPMI host already present.
EMM386 is an interesting study in wierdness. Microsoft's versions have
never provided DPMI services. Novell/Caldera's version provides a
slightly buggy DPMI. QEMM has its own variant of EMM386 which also
provides DPMI services, and these also had problems with earlier
versions. The moral: don't trust EMM386. ;)
> 3) Does CSDPMI conflict with the native DPMI?
Nope. As mentioned above, it's only loaded if there is no other host
already present.
> 4) As mentioned above, what would cause cc1plus to emit virtual
> exhausted sooner than if the stack size is set to a lower size?
How much free memory do you have available? Try running 'go32-v2' from
the same DOS prompt you use to build the HP code. This will tell you
how much total memory you have remaining. If it's really low, the
solution depends on whether you're in DOS or Win95. In DOS, unload some
drivers and adjust your SMARTDRV and RAMDRIVE cache sizes, or delete
unused disk files. In Win95, go to the DOS box properties sheet and
increase the maximum DPMI memory allocated to DOS programs to at least
16384K. (Hint: you can manually type in a value up to 65536K.)
hth!
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| John M. Aldrich, aka Fighteer I | mailto:fighteer AT cs DOT com |
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