| 摘要 |
PURPOSE:To reduce overhead of CPU by informing the task discrimination information which discriminates tasks processed by CPU and the mode information which indicates the program, a problem program or control program, outputting a command to peripheral equipments and taking the share of loads to pheripheral equipments. CONSTITUTION:In the data processing system equipping CPU 1 where processing operation is done by problem programs and control programs and peripheral equipments 2 where processing operation is done by the command of CPU 1, pheripheral processor 10 for stored program processing is attached to equipment 2 and communication system between subsystems 6 is set between CPU 1 and equipment 2. When CPU 1 outputs a command to equipment 2, the task discrimination information which discriminates the task processed by CPU 1 and the mode information which indicates the program, problem program or control program, outputting the command are sent to processor 18. Processor 18 judges the command and does not accept the command which exceeds the fixed limit of the problem program. |
