1. Re: Encrypting (and bit-shifting)
> I am fascinated by this discussion. Does it make a difference whether
> Euphoria actually shifts bits, integer divides or float divides? I would
> have estimated that there would be more overhead in analyzing the operands
> than just going ahead and doing the divide. Especially if the divisor is
> not a constant.
At this point it is only done during pre-compiling.
So if itsn't a constant 2 it will not use shifting...
Maybe in a future version we can write pre-compile routines.. that
is: instead of having the same environment each time, we could have
precompile routines that read euphoria code in and write out some
sort of inbuilt close to ASM but far away from machine independent
stuff code, which is then executed/compiled to real machinecode with
optimizations for the current machine... different pieces of ASM that
do the SAME thing have a really different speed on different
computers... (so the machine and video architecture would be saved in
.E routines instead of in the executor (ex.exe) itself. That would be
heaven.... (machine code optimizations where it is needed and
flexibility elsewhere!!)
> John Kinne
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
~~~~>> Ralf Nieuwenhuijsen <<~~~~
~~~>> nieuwen at xs4all.nl <<~~~~
