PROGRAM DEVELOPMENT TOOL, DATA INPUT METHOD FOR PROGRAM DEVELOPMENT TOOL, AND PROGRAM

PROBLEM TO BE SOLVED: To enable to use a same development tool in common for different models of microcomputers. SOLUTION: A control processing means 1, a data input means 2, a base generating means 3, and a data output means 4 are provided as data control means for generating protect information for giving an alarm in case of writing to a register where only a specific value can be written, when the number of combinations of respective pieces of bit data in bit operation in a variety of registers equipped in microcomputers such as fixing of bit 0 fixing of, bit 1, grouping, and setting of an arbitrary bit value of various registers is different by microcomputer models.