[Info-vax] VMS on Raspberry Pi 5

[The Natural Philosopher]

On 13/11/2023 17:36, Chris Townley wrote:
> On 13/11/2023 17:32, Charlie Gibbs wrote:
>> On 2023-11-13, Arne Vajhøj <arne at vajhoej.dk> wrote:
>>
>>> On 11/13/2023 5:26 AM, Pancho wrote:
>>>
>>>> I don't really know the performance penalty of emulators.
>>>
>>> The overhead of a non-JIT instruction set emulation
>>> must be huge.
>>
>> Back in my Amiga days, I played with the Transformer, a
>> software emulation of an 8088 on a 68000.  It would run
>> MS-DOS, but very slowly - I figured about a 10x slowdown.
>> Once just for giggles I ran Z80MU (a Z80 emulation for
>> MS-DOS) under the Transformer.  Under these two levels
>> of emulation I fired up the CP/M BASIC interpreter and
>> typed "PRINT SIN(whatever)".  It came back with the
>> correct answer - 7 seconds later.
>>
> 
> That sounds like the Sinclair scientific calculator in the early 70s
> 
No, that came back with the *wrong* answer...if it worked at all.


-- 
“But what a weak barrier is truth when it stands in the way of an 
hypothesis!”

Mary Wollstonecraft