Free stack frame created by LINK

NAME
	UNLK -- Free stack frame created by LINK

SYNOPSIS
	UNLK	An

FUNCTION
	This instruction does the inverse process of LINK instruction.
	Address register specified is moved in SP.
	Contents of SP is moved into address register.

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 | 0 | 1 | 1 | REGISTER  |
	-----------------------------------------------------------------

	"REGISTER" indicates the number of address register, used as area
	pointer.

RESULT
	None.

SEE ALSO
	LINK

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