12 Aug
2007
12 Aug
'07
8:01 a.m.
On Sun, 12 Aug 2007, Lennart Augustsson wrote:
CPU design cannot be changed, because they implement well defined ISA.
What is ISA? Why is it not possible to add CPU functions for `div` and `mod`?
The only processor I know of (NS 32k) with a different division is long dead.
If efficiency on current CPUs is the only advantage of `quot` and `rem`, then for future versions of Haskell I propose to fix these functions to the type Int rather than making them class methods. For non-machine types like Integer the efficiency argument does certainly not hold.