Mail Archives: djgpp/1997/02/19/16:03:00
Louis Antoine (lantoine AT ic DOT sunysb DOT edu) wrote:
: I am hoping that someone can answer these questions on accessing the video
: memory under djgpp. I have read a lot of intro to graphics programming
: material for Djgpp and found that all of them basically state that
: accessing the memory with near pointers is faster although it disables
: memory protection.
: QUESTIONS
: (1). Will disabling memory protection affect my operating system which is
: running in protected mode? ( Windows 95, OS/2, etc. )
: (2). Is there an alternative method to accessing the video memory with the
: speed of the near pointer but without disabling memory protection?
: (3). Watcom compiler provides a near pointer to the video memory while in
: protected mode. Does it disable memory protection as well? If not, is it
: possible to use the same methods used by this compiler under Djgpp to
: access the video memory?
: Thanks To Anyone Who Responds.
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George Foot <gfoot AT mc31 DOT merton DOT ox DOT ac DOT uk>
Merton College, Oxford.
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