From: "Jarek Pelczar" <jarekp3 AT wp DOT pl>
Newsgroups: comp.os.msdos.djgpp
Subject: LDTs in DPMI
Date: Fri, 3 Jan 2003 09:39:15 +0100
Organization: tp.internet - http://www.tpi.pl/
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To: djgpp AT delorie DOT com
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Reply-To: djgpp AT delorie DOT com

Hi !

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