[Info-vax] VMS port to x86

Bob Koehler koehler at eisner.nospam.encompasserve.org
Tue Mar 20 15:29:03 EDT 2012


In article <543564.889.1332262058086.JavaMail.geo-discussion-forums at vbgx21>, abrsvc <dansabrservices at yahoo.com> writes:
> 
> As with previous ports, there are many things involved.  Simply porting the=
>  compilers won't be enough.  The Macro compiler and the bliss compiler use =
> the GEM backend code generator.  That too would need to be developed.  Also=
> , tehre are "hardware assists" that are used to implement some of the VMS "=
> isms" that exist.  For example, I don't think that the x86 has the concept =
> of 4 operating priv modes.

   Jees, how many times have we been over this.  80386 and later all
   have the 4 modes needed by VMS.  There are no "hardware assists"
   added to Itanium just to make VMS work.




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