Label Segment
Go To Label
Go To
Subroutine Label
Subroutine
Return
Define Function Key
Clear All Function Keys
Clear One Function Key

[ 2nd ] [ LBL ]
[ 2nd ] [ GTL ]
[ INV ] [ 2nd ] [ GTL ]
[ 2nd ] [ SBL ]
[ INV ] [ 2nd ] [ SBL ]
[ 2nd ] [ RTN ]
[ 2nd ] [ DFN ]
[ 2nd ] [ DFN ] [ CLEAR ]
[ 2nd ] [ DFN ] Fx [ CLEAR ]