A label address translating device includes a unit for processing a program and judging, when processing the program, whether or not an address is obtained from a label, and a label address translating unit for reading the address corresponding to the label from a label table in an exception handling, and writing the address to the program. The program, after being processed by the label address translating device, comes into a state where the label is rewritten into the address. The rewriting into the address is performed in the exception handling, and a time needed for processing (compiling) the program is reduced.