Mail Archives: djgpp/1994/08/26/18:57:18
Congratulations for your pc version...
I wonder how professional programers who try to create another
C compiler can earn money after that... ! (especially watcom...).
About watcom : they propose support for DLL under dos (for a lot of
money). Do you think you could do the same for DJGPP, one day ?
But still, I have a problem with djgpp :
Calls to dos fuctions which return data in a buffer are a real
nightmare ! When they are supported by int86x, it is not too bad
(even if there are some strange bugs - some crashes are stopped by
the creation of a char thing[80] at the begining of the function
which makes the int86x call. I am not specific about the number 80,
but about the variable, even if I do not understand !).
Anyway, when I try to call a function not supported by int86x, such
as the VESA information function 4F on int 10, things are geting worse.
I use _go32_simulate_dos_int... and sometimes it works (especially when
the program does only this call and then end.) and sometimes the call is
made but the data which should be returned is lost !
(I use the transfer buffer provided by go32 as a transfer area for the
data, and then I take it with dosmemget).
Maybe, surely in fact, it has something to do with dpmi and programation
in protected mode, but since I do not know very much about it...
can you help me ?
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