Move to/from control register

NAME
	MOVEC -- Move to/from control register

SYNOPSIS
	MOVEC	Rc,Rn
	MOVEC	Rn,Rc

	Size = (Long)

FUNCTION
	Copy the contents of the specified control register to the specified
	general register or copy from the general register to the control
	register. This is always a 32-bit transfer even though the control
	register may be implemented with fewer bits.

FORMAT
	-----------------------------------------------------------------
	|15 |14 |13 |12 |11 |10 | 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
	|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
	| 0 | 1 | 0 | 0 | 1 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 1 | 0 | 1 |dr |
	|---|-----------|-----------------------------------------------|
	|A/D| REGISTER  |                CONTROL REGISTER               |
	-----------------------------------------------------------------

	A/D indicates type of Rn register:
	0->Rn=Dn
	1->Rn=An

	"REGISTER" indicates the number of Rn register.

	dr specifies direction of move:
	0->Rc to Rn.
	1->Rn to Rc.

	"CONTROL REGISTER" specifies one of the control registers:

	Hexa value	Control Register	CPUs
	~~~~~~~~~~	~~~~~~~~~~~~~~~~	~~~~
	000       	SFC			68010+
	001       	DFC			68010+
	002       	CACR			68020+
	800       	USP			68010+
	801       	VBR			68010+
	802       	CAAR			68020+
	803       	MSP			68020+
	804       	ISP			68020+

	All others hexa codes generates an exception: illegal instruction.

RESULT
	None.

SEE ALSO
	MOVE to/from USP