demetri wrote: > I know Mike is already planning some 64-bit options for BitOp [...] It's already present in the v2.1 branch: commit a98aede37772797b4471e1a094452051edff5862 Date: Wed Mar 13 22:44:01 2013 +0100 FFI: Add 64 bit bitwise operations. http://luajit.org/sponsors.html#sponsorship_bit64 --Mike