ReTurn and Restore CCR

NAME
	RTR -- Return and restore condition code register

SYNOPSIS
	RTR

FUNCTION
	CCR and PC are restored by SP.
	Supervisor byte of SR isn't affected.

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

RESULT
	CCR is set following to the restored word taken from SP.

SEE ALSO
	RTS	RTE	RTD