[Info-vax] Reimplementing VMS, was: Re: HP adds OpenVMS Mature Product Support beyond the end of Standard Support

[John Reagan]

> Whether GEM was modified for Poulson, I don't know.  AFAIK, there 
> haven't been any new compilers released.
> 

Not to my knowledge.  

For the most part, Itanium models where not interesting to GEM since most of the new instructions along the way were not ones you'd use in normal programs.  And the instruction scheduling model for all the M machines (Madison, McKinley, Montvale, Montecito) is the same.  Even Tukwila is about the same.  There never was a benefit for an /OPT=TUNE=xxx like we have on Alpha.  

However, Poulson actually added a handful of interesting instructions that provide some forms of integer multiplication and integer division without using floating point.  Since those are new, you'd would use the /ARCH qualifier to enable those instructions and without any emulation, such images would only run on Poulson. However, the question is moot.