INST    EQU     1000
GOOD    EQU     1001
BAD     EQU     1002
TABLE   EQU     200
        ORIG    0
START   LD1     INST(5:5)       Load C field into I1.
        LD1     TABLE,1
        JMP     0,1
        HLT
* Start switching table.
        ORIG    300
* A, I, F field validation groups.
G01     LD1     INST(4:4)
        CMP1    =45=
        JG      BAD
        JMP     GOOD
        ORIG    200
* EXX -> Entry for instruction with C = XX.
E00     CON     GOOD
E01     CON     G01
E02     CON     G01
E03     CON     G01
E04     CON     G01
        END     START