WAIT/FWAIT - Event Wait

	Usage:	WAIT
	Modifies flags: None

	CPU enters wait state until the coprocessor signals it has finished
	it's operation.  This instruction is used to prevent the CPU from
	accessing memory that may be temporarily in use by the coprocessor.
	WAIT and FWAIT are identical.

				 Clocks			Size
	Operands	 808x  286   386   486		Bytes

	none		  4	3     6+   1-3		  1

	- see Instruction Timing