Hi,

Yes, on my Mac I get

: *CPU
-> "emu"

Sorry, I had completely forgotten about the "emu". ;-)

/Jon

> Hi Jon, Keith,
>
>> I've done some more testing of your 64-bit PicoLisp on my old MacBook
>> Air,
>> ...
>> : (== 64 64)
>> -> T
>> : (de fibo (N) (if (>= 2 N) 1 (+ (fibo (dec N)) (fibo (- N 2)))))
>> -> fibo
>> : (bench (fibo 33))
>> 20.361 sec
>> -> 3524578
>>
>> The same test using standard 32-bit PicoLisp runs a lot faster:
>>
>> : (bench (fibo 33))
>> 2.136 sec
>> -> 3524578
>>
>> What can be the reason for this huge difference?
>
> You must be running the emulator. There is no native 64-bit version for
> the Mac, right?
>
> You will probably get
>
>    : *CPU
>    -> "emu"
>
> instead of
>
>    : *CPU
>    -> "x86-64"
>
> ?? Alex


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