[Dlang-internal] I need cent and ucent to be implemented soon

[user1234]

On Saturday, 4 May 2019 at 16:15:33 UTC, Alex wrote:
> On Saturday, 4 May 2019 at 12:00:08 UTC, user1234 wrote:
>> 128 bits int are supposed to be a fast, fixed size, standard 
>> integer type.
>
> Hey, sorry for degrading this to a learn forum section and I 
> promise I stop posting such silly questions here very soon.

Good initiative.

> But just out of interest: Isn't this true, only in the case 
> where such ints are native to the architecture? If so, and if 
> you see a machine of such architecture in the wild, could you 
> post a link here?

SSE regs are wide enough...

Also in a far past a similar situation existed with 64 bits int 
on x86 CPUs, were machine word was 32 bits. The int was either 
passed as a struct or split and passed in two regs and then some 
special intrinsic functions were used for the different ops.

Technically nothing prevents to have them, it's just that someone 
has to do the work. There's a good pile of operation to 
implement: arithetic, bitwise... some stuff with the implicit 
conversions too, etc.

As said with DMD this won't be as good as with other compilos 
which have intrinsics for all the ops (AFAIU).