(1)

Adds the value resulting from logically shifting the value specified by the operand 1 bit to the left to the first address of the table (address following the switch instruction) to generate a table entry address.

(2)

Loads signed halfword data from the generated table entry address.

(3)

Logically shifts the loaded value 1 bit to the left and sign-extends it to word length. Then adds the first address of the table to it to generate an address

(4)

Branches to the generated address.