SAHF - Store AH Register into FLAGS

	Usage:	SAHF
	Modifies flags: AF CF PF SF ZF


	Transfers bits 0-7 of AH into the Flags Register.  This includes
	AF, CF, PF, SF and ZF.


 				 Clocks			Size
 	Operands	 808x  286   386   486		Bytes

	none		  4	2     3	    2		  1


	- see Instruction Timing