[Info-vax] Multia

Arne Vajhøj arne at vajhoej.dk
Tue Nov 9 08:28:23 EST 2021


On 11/9/2021 5:19 AM, MG wrote:
> On 11/9/21 00:50, Bill Gunshannon wrote:
>> Maybe, but I have had very little luck getting VMS on an
>> Alpha emulator to do much that was useful.  Even with
>> my PDP's and VAX I still prefer real hardware over any
>> emulated system.
> 
> Good point, many AXP emulators are messy and the ones
> working best tend to be commercial products relegated
> largely to Windows host platforms, on top of that, too.
> 
> I was also not terribly impressed with the performance
> of some of these emulators.  Maybe things improved since
> then (i.e. half a decade or so ago, in my estimation).

ISA emulation using plain interpretation means a lot of
overhead.

And only the expensive commercial products comes with
JIT compilation.

Arne




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