root/as/err/err_210.casl

;;; casl2 -O err_210.casl && comet2 -M8 a.o
MAIN    START
        LD      GR0,A
        LD      GR0,B
        LD      GR0,C
        RET
A       DC      7
B       DC      -7
C       DC      0
        END