Example 8. Using Subscripted Substitution Symbols to Redefine an Instruction

ADDX        .macro     ABC
            .var       TMP
            .asg       :ABC(1): , TMP
            .if        $symcmp(TMP, "#") = 0
            ADD        ACC, ABC
            .else
            .emsg      "Bad Macro Parameter"
            .endif
            .endm
                 
ADDX        #100                       ;macro call