Mersenne: Re: Is 128 bit instruction code needed ?

[Bojan Antonovic]

> So far, the drive towards more bits in the instruction code is by the need
> to address more data rather than the needs to compute longer integer or
> higher numeric precision. And this is usually driven by 2 factors : The
> computer
> RAM size and the biggest Database size required commercially .

Realy ? But with 64 bit or 128 bit adressing space you can address every atom on 
the earth ... Once I mad a calculation about it, but I think that 256 bit can 
address 1/8 of the universe.
 
1 mol protons = 1g = 6*10^23 protons
10^3 mol p. = 1kg =6*10^23 protoons
earth: 5*10^24 kg = 3*10^48 protons = 2^150 bit (+- 5 bit, approx).
                  = 2^73 g -> enough to adress ...
                  
Bojan