JGE/JNL - Jump Greater or Equal / Jump Not Less

	Usage:	JGE	label
		JNL	label
	Modifies flags: None
	Causes execution to branch to "label" if the Sign Flag equals
	the Overflow Flag.  Signed comparision.
				 Clocks			Size
	Operands	 808x  286   386   486		Bytes
	label:	jump	  16   7+m   7+m    3		 2-4
		no jump	  4	3     3	    1
	- see Instruction Timing