Richard B. Johnson writes:
> This can't be.

Richard,  before I read any further, I suggest that you get some
documentation on a few PCI VGA cards and read up on the register
addresses.  You may want to change your assumptions about what can and
can't be. ;)

And I can definitely say that if you don't allow access to these "extended"
VGA ports, BIOSes either enter infinite loops or else terminate without
initialising the card.  Trust me; I've been successfully running various
PCI VGA card BIOSes under an x86 emulator on an ARM machine for the past
few months.
   _____
  |_____| ------------------------------------------------- ---+---+-
  |   |         Russell King        [EMAIL PROTECTED]      --- ---
  | | | | http://www.arm.linux.org.uk/personal/aboutme.html   /  /  |
  | +-+-+                                                     --- -+-
  /   |               THE developer of ARM Linux              |+| /|\
 /  | | |                                                     ---  |
    +-+-+ -------------------------------------------------  /\\\  |
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