| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an integrated circuit device which performs high-speed arithmetic processing while minimizing an increase in hardware scale. <P>SOLUTION: The integrated circuit device 1000 includes a CPU 10 which executes given processing according to an instruction code 22, an instruction code bus 60 for supplying the instruction code 22 from a memory 20 to the CPU 10, and an instruction code supply line CICC for supplying an instruction code IR2 to be outputted from a coprocessor 30 to the CPU 10, and the CPU 10 includes a fetch section 100 which fetches the instruction code 22 and an instruction code selecting circuit MUX_IRC which receives the instruction code 22 inputted through the instruction code bus 60 and the instruction IR2 supplied through the instruction code supply line CICC and supplies one of the instruction codes to the fetch section 100. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
