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From: | Elliott Oti <e DOT oti AT stud DOT warande DOT ruu DOT nl> |
Newsgroups: | comp.os.msdos.djgpp |
Subject: | Re: Disabling Protected Mode |
Date: | Mon, 30 Dec 1996 07:24:01 -0800 |
Organization: | Academic Computer Centre Utrecht, (ACCU) |
Lines: | 20 |
Message-ID: | <32C7DE91.5152@stud.warande.ruu.nl> |
References: | <5a7r11$o1n$1 AT mhafn DOT production DOT compuserve DOT com> |
NNTP-Posting-Host: | warande1078.warande.ruu.nl |
Mime-Version: | 1.0 |
To: | djgpp AT delorie DOT com |
DJ-Gateway: | from newsgroup comp.os.msdos.djgpp |
John Savage wrote: > > I heard there was some way to disable protected mode in DJGPP... > what I really want to do is be able to access video RAM directly. > Is this possible? > #include <sys/nearptr.h> void foo() { char *VidPtr; __djgpp_nearptr_enable(); VidPtr = (char *)(0xa0000 + __djgpp_conventional_base); // Do whatchalike __djgpp_nearptr_disable(); }
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