Multi-system emulators are capable of emulating the functionality of multiple systems. X.25 is built on the concept of virtual circuits emulating traditional telephone connections. Another method of spoofing is that of emulating the Bell 202 FSK signal. The physics engine is responsible for emulating the laws of physics realistically within the application. In 2014, Roland released the TB-3, a synthesizer emulating TB-303 circuitry. He took to changing his musical style, extensively emulating Stevie Wonder. In the context of embedded systems, the ICE is not emulating hardware. Cantrell learned to play guitar by ear, emulating his heroes. It is like a giant cartoon image drafted by a computer emulating a famous photograph. Tokhtamysh dreamt of emulating his ancestors and made plans to reunite the Golden Horde. Two activities related to (but distinct from) porting are emulating and cross-compiling. This is emulating a customary design detail found on acoustic piano keys. The singer joins Kazaky during the chorus emulating the choreography with them. He started to play drums by emulating them. The cost of trapping and emulating privileged instructions in the VMM can be significant.