OpenEuphoria

Re: Euphoria Interpreter

• Posted by "Cuny, David" <David.Cuny at DSS.CA.GOV> Jul 15, 1999
• 360 views

LEVIATHAN wrote:

> ... Ah. So, this is only to show that one cannot
> make an interpreter (especially its own language)
> under Eu?

No, it actually runs pretty fast, in a relative sense. I ran the benchmarks
that were supplied with Euphoria, and it was lightyears behind Euphoria and
QBasic. But when I removed the DEFINT from the QBasic code, it actually ran
faster than QBasic!

The main reason for the slow speed stems from storing values in sequences.
The difference between:

   a[1] += 1

and

   a += 1

is staggering. I found this out when I wrote my Basic to Euphoria
interpreter some time back. The interpreter can't perform all it's cool
optimizations on data stored in sequences. So it's pathetically slow
relative to Euphoria.


> Where is it? perhaps I can take a peek at it.

It's posted on the Euphoria page.


> But, if this CAN be done, perhaps a cpp interpreter
> under Eu could work too.

Go for it! Just make sure that it's got garbage collection built in, and a
nice trace routine, and ... ooops, that's Euphoria, isn't it? 

-- David Cuny