| 摘要 |
PURPOSE:To secure the replacement for the defective area for execution without changing the contents of the present program, by giving the concentrated control to the program to be replaced with the information at the defective area. CONSTITUTION:The main memory holds the program of storage program information processor 1, memory 4 possessing the data and memory 3 possessing the program which gives replacement to the defective area in the program. The address is extracted via the extracting circuit when the order is read out of the main memory of processor 1, and the head address of the defective area in the main memory is registered by associative memory 2. Then the presence or absence of the address registering from the extracting circuit is decided by using the output of the circuit as the input, and the register number is delivered in case the address is registered. The register number of memory 2 is received via the address converting circuit and then converted into the head address of the program which replaces the number. And both the decision output of memory 2 and the address output of the address converting circuit are used as the input via control circuit 8, and the order execution is replaced to processor 1 to be then shifted to the program within the memory through the indication. |
