Mail Archives: djgpp/1994/08/18/22:35:42
On Thu, 18 Aug 1994 tyuan AT beta DOT wsl DOT sinica DOT edu DOT tw wrote:
> Recently, I put djgpp 1.12 on my system. After I try to run
> test programs under subdirectory `tests', for example, t02.bat,
> I find out w/
> device=c:\dos\emm386.exe noems
> in my config.sys
> then, I can get my answer in seconds.
> BUT if I remove that line from config.sys
> then I must spend 45 minuates to get the answer.
>
> Does anyone know what is wrong w/ my system? OR to put
> `device=c:\dos\emm386....' in config.sys is a necessary
> procedure.
It's my understanding, but I'm not totally positive, that DJGPP requires
either DPMI or VCPI in order to use extended memory. emm386 privovides
for DPMI (and for VCPI if you give it a RAM option), and allows DJGPP to
use your extended memory. If you don't have this, it only uses
conventional memory, and pages to disk a lot more. Someone correct me if
I'm wrong...
Fred Reimer
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