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.ERRE            Error If False                                MASM Directive

  .ERRE     expression

    Forces a fatal error if expression is false (0).

       Notes:     The expression must resolve to an absolute value and not
                  contain a forward reference.

                  The error message that may be generated by this
                  directive is 'Forced error - expression equals 0', which
                  is error number 90.

                  If an error is generated, the object module is deleted
                  and the assembler exits with an exit code of 7.