From: Martin Str|mberg <ams AT speedy DOT ludd DOT luth DOT se>
Subject: Re: LDTs in DPMI
Newsgroups: comp.os.msdos.djgpp
References: <av3i7e$g6l$1 AT news DOT tpi DOT pl>
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Date: 06 Jan 2003 00:33:03 GMT
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To: djgpp AT delorie DOT com
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Jarek Pelczar <jarekp3 AT wp DOT pl> wrote:
: I'd like to make some kind of emulator of one OS.
: I create two LDTs for CS and DS wchich relocate
: code to execute. I create alias descriptors using DPMI
: function with _my_cs() and _my_ds(), then I set base and limit of executable
: memory. When I'm trying to execute code, DPMI host dumps registers and
: program crashes.

Please elaborate.

: I've modified int 0x40 vector to mine. Can it be the
: problem ? But everything works fine when I call interrupt

Not if you did it right. Did you?

: handler. Maybe it is problem with GCC ?

Extremely unlikely.


Right,

						MartinS