Data processor having repeat instruction processing using executed instruction number counter

摘要

A data processor configured to repeatedly perform sequential execution of a plurality of instructions in a program in response to a repeat instruction in the program. The data processor includes a counting circuit configured to count every time one instruction of the plurality of instructions is executed; a judgment circuit configured to judge whether the counting circuit counts a predetermined number of times; and an instruction execution control portion configured to control an execution sequence to return to a head instruction of said plurality of instructions following a last instruction in the plurality of instructions in response to a first result output from the judgment circuit indicating that the counting circuit does not count the predetermined number of times.