Machine tool and interpretive program

A non-transitory computer readable medium storing an interpretive program for use in a machine tool comprising a tool post having a tool unit for machining a workpiece attached thereto, causing a computer to execute an operation control function for controlling an operation of the tool unit in accordance with a plurality of commands described in a numerical control program and to execute a movement restricting function for inhibiting entry of the tool unit into a no-entry region;

• wherein the plurality of commands include a limit value setting command for calculating a limit value of a position of the tool unit avoiding interference with a machine element located within a movable region of the tool unit and for determining the no-entry region by the calculated limit value, and
• wherein upon reading the limit value setting command out of the numerical control program, the limit value is calculated and the no-entry region is determined by the calculated limit value.