[Info-vax] rx2800i2 sales/support window changes

[Johnny Billquist]

On 2014-02-14 04:51, David Froble wrote:
> Johnny Billquist wrote:
>> On 2014-02-14 00:03, JF Mezei wrote:
>>> That leaves the rethorical question of whether a x86 emulating Alpha
>>> instruction set would yield better/equal/worse performance than the same
>>> x86 emulating the IA64 instruction set.
>>
>> IA64 will probably be worse, because the frickin' instruction set is
>> horrible. Alpha is way cleaner, which will allow an emulator to spend
>> less time pretending to do weird shit.
>>
>>     Johnny
>>
>
> That's sort of how I felt, but I don't know enough about it to actually
> "know".
>
> I also asked a while back whether VAX emulation might be faster or
> slower than Alpha emulation.  Regardless, VAX is 32 bits, and
> development of VMS for VAX ended in the V7.2 timeframe.

Alpha is probably easier than VAX as well. The VAX instruction set is 
rather large and complex in some other ways.

But, as you note, it's also only 32 bits... With an old VMS version 
(last one was V7.3).

	Johnny


-- 
Johnny Billquist                  || "I'm on a bus
                                   ||  on a psychedelic trip
email: bqt at softjar.se             ||  Reading murder books
pdp is alive!                     ||  tryin' to stay hip" - B. Idol