For user-mode emulation QEMU maps emulated threads to host threads. The scene has been widely emulated and parodied on screen since. The Directive has been widely emulated in other countries. Although each processor can be emulated well independently, accurately synchronizing them is difficult. Architecture that emulated the older defensive designs remained popular. MSX computers are emulated on many platforms today. The auction approach is widely emulated throughout the world. A number of games use sound chips that have not yet been emulated successfully. It was widely emulated, particularly by the emerging Californian glam metal scene. "Pyromania"s style was widely emulated, particularly by the emerging Californian scene. "Punch" was widely emulated worldwide and was popular in the colonies. The NES can be emulated on many other systems. An ISA can also be emulated in software by an interpreter. It has now been emulated by wordnets in many different languages. Some removed instructions could be emulated by the operating system if necessary.