| 摘要 |
PURPOSE:To enable the appropriate processing and output of information without enlarging the capacity of a memory. CONSTITUTION:A bus 2 is connected mutually among a CPU 1, the memory 3 storing the information and an I/O a device 6 for performing the input/output of the information. A DMAC 5 is also connected to the bus 2 and the DMAC 5 releases the bus 2 from the CPU 1 corresponding to the request of the I/O device 6. An arithmetic unit 4 is connected to the bus 2 as well and the arithmetic unit 4 reads and processes the information inside the memory 3 by each prescribed amount at the time of the release of the bus 2. When the processing by the arithmetic unit 4 is completed, the information inside the arithmetic unit 4 is successively supplied to the I/O device 6 and outputted. |
