[TUHS] Redoing "V6on286" or porting V7...?

Greg Haerr greg at censoft.com
Tue Nov 15 13:08:52 AEST 2005

>  One
> crucial difference is that Unix has the implicit assumption that the
> stack is in the data space - which is not true on the 286.  This
> difference is fairly critical to Unix and makes it impossible to
> accurately reproduce the traditional Unix memory protection.

I don't understand this.  If SS is set to DS, in any 16 bit mode,
then doesn't this accomplish the accurate reproduction?  I realize
that a 32-bit mode would be required for limit checking.



More information about the TUHS mailing list