Zarel/Pokemon-Showdown — pull request #270 by kotarou3 (2013-07-10 13:47:23+00:00)
Title: Use Gen 5 RNG - Improved

This has the same functionality as Pull Request #269, except has a faster implementation and is generalised for seeds larger than 64 bits.
I've tested this against V4Victini's original implementation of nextFrame(), and all values match for the same initial seeds.