[Info-vax] C and assembly language, was: Re: WHY IS VSI REQUIRING A HYPERVISOR FOR X86 OPENVMS?

[Michael C]

On Sunday, December 20, 2020 at 9:08:34 PM UTC-5, Simon Clubley wrote:
> On 2020-12-20, John Reagan <xyzz... at gmail.com> wrote: 
> > On Sunday, December 20, 2020 at 8:05:52 PM UTC-5, Simon Clubley wrote: 
> >> On 2020-12-19, Michael C <supers... at gmail.com> wrote: 
> >> > 
> >> > A LITTLE LESSON DAVE ANYTHING WRITTEN IN C OR RUNNING ON LINUX OR WINDOZE WILL HAVE A VULNERABILITY LIST A MILE LONG. 
> >> > 
> >> > THAT IS WHY YOU DON'T WANT NO MIDDLE MAN WITH OPENVMS 
> >> Much of VMS is written in assembly language which is even worse than 
> >> C at letting silly errors through. 
> >> 
> >> However, the latest work in VMS is done using C so that's an 
> >> improvement over Macro-32 when it comes to detecting silly errors. 
> >> 
> > 
> > "Much"? I think Clair did a line count/module posting in the last year or so. The Macro-32 contribution was getting pretty low (less than 20%?) However, just the difficult and nasty parts that nobody wants to attempt to rewrite. I'd pay real money to watch somebody try to rewrite the shadow driver out of Macro-32 (pretty much every routine can jump into any other routine in an alternative universe threading scheme). And I've recently had to look at chunks of DECnet IV and even I couldn't make heads-or-tails out of some of the algorithms.
> Make that "Much of VMS was written in assembly language originally ...". :-) 
> 
> I wonder what Bob thinks about BLISS ? :-)

A LOT BETTER THAN C

> Simon. 
> 
> -- 
> Simon Clubley, clubley at remove_me.eisner.decus.org-Earth.UFP 
> Walking destinations on a map are further away than they appear.