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Article #27Protected Mode trouble
From: Rolf van Lengen [Informatik] gue...
Date: Tue, 03 Nov 1992 15:04
Date: Tue, 03 Nov 1992 15:04
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1740 bytes
When I run a compiled GNU-C program, it complains that the machine must be in REAL MODE to run this program, although the PC version of GCC uses PROTECTED MODE instructions. I found out that the switching mechanism between REAL MODE and PROTECTED MODE used by GNU-C is a bit complicated. Obviously GNU-C wants to switch to PROTECTED MODE on its own, and this is only possible when the machine is in REAL MODE before calling the program. Since GNU-C expects the processor to be in REAL MODE, I have to make sure that no other program switched the CPU to PROTECTED MODE before. (I've "high- loaded" some TSRs and parts of the DOS system, and this causes a switch to PROTECTED MODE. So I always have to change my CONFIG.SYS when I use GNU-C. But this is no solution...) Anybody who has an idea? Any hint on this is welcome (perhaps it's only a misunderstanding of the .DOC files...!?) (Probably this has been posted before, but sorry..., I didn't find an answer...) Please reply via E-Mail to: lengen@sun.rhrk.uni-kl.de (guest account, so please refer to my first name) Bye Joerg :-)
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Newsgroups: gnu.gcc.help Path: arc1-ca.pugleaf.net!sparky!uunet!paladin.american.edu!gatech!swrinde!zaphod.mps.ohio-state.edu!cs.utexas.edu!qt.cs.utexas.edu!yale.edu!ira.uka.de!rz.uni-karlsruhe.de!stepsun.uni-kl.de!sun.rhrk.uni-kl.de!sun.rhrk.uni-kl.de!lengen From: lengen@sun.rhrk.uni-kl.de (Rolf van Lengen [Informatik] guest j_meyer) Subject: Protected Mode trouble Message-ID: <1992Nov3.150427.14947@rhrk.uni-kl.de> Sender: news@rhrk.uni-kl.de Reply-To: lengen@sun.rhrk.uni-kl.de (Rolf van Lengen [Informatik] guest j_meyer) Organization: University of Kaiserslautern (Germany) Date: Tue, 3 Nov 1992 15:04:27 GMT Lines: 29