SUBROUTINE ADVICE(IGO)
        IF(IGO .GE. 6)GO TO 998
        TYPE *,' '
        GO TO (110,120,130,140,150)IGO
 110    TYPE *,' MR. SPOCK ADVIZES THAT YOUR SHIELDS ARE'
        TYPE *,' DANGEROUSLY LOW AND NEED MORE ENERGY.'
        GO TO 999
 120    TYPE *,' MR. SPOCK ADVIZES THAT THE ENTERPRISE'
        TYPE *,' IS EXTREMELY LOW ON ENERGY AND THAT'
        TYPE *,' YOU SHOULD SEEK A STAR BASE.'
        GO TO 999
 130    TYPE *,' MR. SPOCK ISSUES YOU THE TWO MINUTE WARNING'
        GO TO 999
 140    TYPE *,' THE SEVERITY OF THE HIT INDICATES DAMAGE.'
        TYPE *,' MR. SPOCK WILL PREPARE A DAMAGE REPORT.'
        GO TO 999
 150    TYPE *,' MR. SPOCK ADVICES THAT THE SUPPLY OF'
        TYPE *,' ONBOARD TORPEDOS HAS FALLEN BELOW 3'
        TYPE *,' AND SUGGESTS THAT YOU SEEK A STARBASE.'
 999    TYPE *,' '
 998    RETURN
        END