Terminology

The copy of Pan Docs hosted on this wiki is considered deprecated.

Pan Docs is now officially hosted on gbdev.io as a living document. Please go to https://gbdev.io/pandocs/ to read Pan Docs or to https://github.com/gbdev/pandocs to contribute.

Durations

One cycle of the master clock is called a "clock", or a "t-cycle". It can either equal 0.25 µs, or 0.125 µs in CGB double-speed. The duration of a nop instruction is called a "nop" or "m-cycle", and equals four clocks.