Incorporating powerful features, standardizing privileged mode
instructions, supporting past ISAs and providing an upgrade path from the MIPS32(R) architecture, the MIPS64 architecture provides a solid high-performance foundation for future MIPS processor-based development.
Unfortunately, operating systems often interact directly with the underlying hardware, and the x86 architecture requires these hardware instructions to be executed in "Ring 0" privileged mode
However, before heckles are raised about Mr Cameron's privileged mode
of transport, be aware that both Mr Brown and Mr Clegg will fly "on occasions".