[Info-vax] Python for x86?

[Arne Vajhøj]

On 5/9/2023 3:38 PM, Chris Townley wrote:
> On 08/05/2023 16:34, Arne Vajhøj wrote:
>> On 5/8/2023 7:23 AM, Chris Townley wrote:
>>> Interesting that BASIC show integer as slower than FP
>>
>> Yes. I was puzzled by that as well. But I got the same result
>> on my systems.
>>
>> /NOCHECK does not change it so it is not the overflow
>> check.
>>
>> Maybe there is some subtle error in the Basic integer
>> test code. But I cannot see it.
> 
> Finally got round to testing my thoughts.
> 
> On my FreeAXP (no JIT) setup I get the following with your code:
> 
> Basic:
>    12.3182 million integer operations per second
>    14.1572 million floating point operations per second
>     0.0080 million string operations per second
> 
> 
> I then changed the integer bits to append the % to all integer 
> constants, and now get:
> 
> Basic:
>    31.6586 million integer operations per second
> 
> It shows how BASIC can be slowed down not doing that!

I can confirm that.

By changing 1 to 1% and 2 to 2% then the results are
way more as expected.

In fact BASIC is only about 25% slower than the
other native languages and BASIC/NOCHECK is
just as fast as the other native languages.

When one knows what to look for then it is
easy to find.

The VMS Basic Reference Manual says:

<quote>
An integer constant is a literal or named constant, either positive or 
negative,
with no fractional digits and an optional trailing percent sign (%). The 
percent
sign is required for integer literals only if the default type is not 
INTEGER.
</quote>

And HELP BAS /TYPE says:

<quote>
The default is /TYPE_DEFAULT = REAL.
</quote>

so 1 and 2 are two real constants.

So my mistake.

I will have to rerun all the tests.

Arne