METHOD OF DESIGNATING OUTPUT "DON'T CARE" AND PROCESSOR OF PROCESSING LOGIC CIRCUIT DATA

A method of designating an output “don't care”, includes the steps of reading (21) first data about a logic circuit in which outputs associated a plurality of inputs are described, reading (22) “don't care” indicating data which outputs a predetermined logic value in response only to a specific input among the plurality of inputs, converting (23) the first data into second data having a form conforming to an application, converting (24) the “don't care” indicating data into third data having the form, coupling (25) the plurality of inputs in the second data to associated inputs in the third data, and detecting (26) an output in the second data which output is associated with an input in response to which the predetermined logic value is output from the “don't care” indicating data.