PHP Zend Engine - Re: [ZEND-ENGINE-CVS] cvs: ZendEngine2 / README.ZEND

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Re: [ZEND-ENGINE-CVS] cvs: ZendEngine2 / README.ZEND_VM

Thies C. Arntzen

2004-09-15, 3:56 am

On Tue, 14 Sep 2004 22:25:14 -0700, Andi Gutmans <andi@zend.com> wrote:
> At 04:23 PM 9/14/2004 -0700, Andrei Zmievski wrote:
>
> Personally I don't think it's that important either but due to popular
> demand we'll see if we can have two execution engines in the same build so
> you can choose between "fastest" and function handlers.
>

a few remarks:

- the function-based executor would not only allow for
opcode-overloading but also for opcode (and line) based profiling and
execution tracing.

- i'm impressed with your CPP magic. but at the end of the day we end
up with un-debuggable code. (am i have traced thru the executor).

i would suggest to write the instructions in a special-formatted file
and then let some php-script generate real C executor loop(s) from
that. that's pretty much how eg parrot does it.

re,
tc

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