SIC VERIFY

        [SIC\]SIC VERIFY
        [SIC\]SIC VERIFY ON|OFF
        [SIC\]SIC VERIFY MACRO ON|OFF|STEP

    Control  the  listing of macros, loop or stack during execution. Without
    argument, SIC VERIFY shows its current status.

    SIC VERIFY ON enables echoing each command in the terminal before execu-
    tion. This is mostly useful for debugging. Note that numerous outputs in
    the terminal slow down considerably the procedure execution. Default  is
    OFF.

    SIC  VERIFY  MACRO  ON  adds  feedback in the terminal when entering and
    leaving a procedure (procedure file name,  number  of  arguments,  argu-
    ments).  It also waits for the user to type <Return> before starting the
    procedure execution. SIC VERIFY MACRO STEP adds feedback in the terminal
    before  executing  each  command (similar to SIC VERIFY ON), but it also
    waits for the user to type <Return> before executing  the  command.  De-
    fault is OFF, i.e. no feedback is shown, and no need to type <Return>.