From:	Jih-Shin Ho <u7711501 AT bicmos DOT ee DOT nctu DOT edu DOT tw>
Subject:	int86 doesn't preserve fs & gs
To:	djgpp AT sun DOT soe DOT clarkson DOT edu (djgpp)
Date:	Sat, 26 Feb 94 21:47:08 EAT

Hi:
  I am writing a image viewer that can run under DPMI. I can't use the linear
video memory model provided by GO32. So I must do the bank switching by
myself. After a lot of trying, I find that int86() doesn't preserve the
segment register %fs and %gs. This causes a very serious problem because
I use %gs to store the DOS memory selector. I hope this will help others
who have the same problem.


  -- Jih-Shin Ho

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