[Info-vax] Baremetal emulators, was: Re: Alpha emulator for OSX

Stephen Hoffman seaohveh at hoffmanlabs.invalid
Tue Feb 9 12:40:00 EST 2016


On 2016-02-09 14:32:06 +0000, Johnny Billquist said:

> I totally understood what you said, Hoff. And that is all good points, 
> but like I said, it's a different can of worms. It has nothing to do 
> with real-time.


Donno.   I don't see a particular difference.   Emulators and hardware 
can change timing.  Changing timing derails applications, whether it's 
a commercial application or some application with tighter requirements. 
  Seems to be different aspects of the same mess.   The same can of 
worms.    Maybe you presume OP was using the same definition of real 
time you're familiar with, or maybe the OP wasn't, or maybe the OP 
might not realize that this is a general issue with applications 
running on faster processors or emulated processors or Linux or not.   
I've presumed a more general usage of timing issues involving emulation 
here, and that and the usage of other operating systems are clearly an 
anathema to the sentiments of the sole arbiter of real-time here in the 
newsgroup, and for that I beg your forgiveness.   I shall do a dozen 
interrupts in a millisecond, using only ladder logic in a baroque PLC 
of your choice.   Will that be sufficient penance for my transgressions 
of terminology?

-- 
Pure Personal Opinion | HoffmanLabs LLC 




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