Numerical controller having function of speeding up fixed cycle

A numerical controller that generates a command data string including a plurality of command data items based on a fixed cycle command included in a program, and controls a machine based on the command data string, the numerical controller comprising:

• a fixed cycle operation section that analyzes the fixed cycle command and generates the command data string based on an analysis result, wherein
• the fixed cycle operation section includes:
• a remainder calculation section that calculates a remaining cutting depth based on an entire cutting depth of a tool for a workpiece and a cutting depth of the tool for the workpiece in one cut that are specified by the fixed cycle command;
• and
• a command data string adjustment section that adjusts order of the command data items included in the command data string or cutting depths in the command data items based on the remaining cutting depth such that the total of a feed movement amount of the tool resulting from the command data string is reduced.