SAL/SHL - Shift Arithmetic Left / Shift Logical Left

	Usage:	SAL	dest,count
		SHL	dest,count
	Modifies flags: CF OF PF SF ZF (AF undefined)


	Shifts the destination left by "count" bits with zeroes shifted
	in on right.  The Carry Flag contains the last bit shifted out.

				 Clocks			Size
	Operands	 808x  286   386   486		Bytes

	reg,1		  2	2     3	    3		 2
	mem,1		15+EA	7     7	    4		2-4  (W88=23+EA)
	reg,CL		 8+4n  5+n    3	    3		 2
	mem,CL	      20+EA+4n 8+n    7	    4		2-4  (W88=28+EA+4n)
	reg,immed8	  -    5+n    3	    2		 3
	mem,immed8	  -    8+n    7	    4		3-5


	- see Instruction Timing