[plex86] CVS updates

[Kevin Lawton]

Just getting prepared before trying to boot Windows.

-Kevin

>From ChangeLog:

  - "Kevin P. Lawton" <[EMAIL PROTECTED]>: Thu Nov  2 16:56:09 EST 2000
    Redirect memory mapped IO addresses in the VGA framebuffer,
      to the VGA emulation.  Took out hack to periodically copy
      physical guest memory to VGA framebuffer.  VGA graphics
      modes should be enabled now.
    Added an abort_code to the vm_t so we can tell where a panic
      happened, if it is not safe to print a message.  (for example
      in the exception handler)