Subject: Re: port-i386/825: no support for Virtual 8086 mode
To: None <firstname.lastname@example.org>
From: John Kohl <email@example.com>
Date: 03/06/1995 08:24:10
(Sorry about the duplicate Bill, I just noticed you cc'ed the port-i386
If you look carefully at the diffs to code in sys_machdep.c, you'll see
that ds and es are set from the vm86-specific part of the trap frame.
It therefore makes no sense to copy the "generic trap frame" versions of
ds/es into the processor state--they'll get overwritten at the time of
an iret to VM86 mode.
p.s. Next stop is porting dosemu from linux--anybody wanna help?