Hello.

The attached patch implements the following:
http://x86.ddj.com/articles/vme1/vme_overview.htm
---
In addition to moving the VIF to the IF on the stack image, 
PUSHF always pushes an IOPL image of 3 onto the
stack.
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Many DOS programs, including dos4gw, are
checking if they are in a v86 mode by trying
to alter IOPL. With that patch they are not
get confused under dosemu.
Also the patch fixes what looks like a bug
with an IF flag.