64 bits variable ?

[Kurp]

Hi all,

I am trying to do a 64 bits operation. For that, i have wrote this line :

type int64 is range 0 to 18446744073709551616

But at compilation, its returns this following error :

Integer value exceeds INTEGER'HIGH.

I cant use signal because it's add too many latency that's why i must use 64 bits variable

Thanks
Kurp