OpenEuphoria

Re: 64 bit euphoria

• Posted by Robert Craig <rds at RapidEuphoria.com> Apr 20, 2005
• 472 views

Alexander Toresson wrote:
> codepilot Gmail Account wrote:
> > 
> > You have to get a 64-bit os to do anything 64-bit. I wonder if a
> > 64-bit dos version of EU is possible.
> > 
> 
> LOL! 64-bit DOS! Best joke I've heard in a while.
> Notice that you just said "You have to get a 64-bit os to do anything 64-bit".
> 
> Anyway, about 64-bit euphoria. There has to be at least 2 versions of it.
> There is
> a big difference between 64-bit code in an Athlon 64 and Intel's IA-64
> architecture.
> 
> And a question to RobC: Is the sequence operations etc written in asm or in C?
> If they
> are written in C, it'd be quite easy to compile for 64-bit architectures. If
> it's asm,
> it'd have to be rewritten.

There is hardly any asm in the Euphoria interpreter.
The front-end is written in Euphoria.
The back-end is 99.9% C. integers would likely become 63 bits 
instead of 31. That could lead to some small compatibility issues,
e.g. 
  if integer(x) then ... 
might have a different meaning.

It would probably not bother many people if a 
simple declaration of:
  integer x
now allowed x to be 63 bits in size.

The use of 64-bit pointers internally by the interpreter 
would probably not disturb most Euphoria programs. 
It would just allow much larger sequences to be created.

Regards,
   Rob Craig
   Rapid Deployment Software
   http://www.RapidEuphoria.com