| 摘要 |
PURPOSE:To collect fault information on transient software on a virtual storage system by recording the contents of a main storage write data register when a main storage write address coincides with an investigation object address. CONSTITUTION:A state flip-flop 14 which is set when the transient software is rolled in a main storage allows an AND gate 16 to control the output 38 of a comparing circuit 15 which compares the contents of a main storage address register 10 holding a write address of the main storage 12 with the contents of an investigation object address register 13 holding an investigation object address of fault occurrence. When a coincidence signal is obtained according to the set state of the flip-flip, a storage control circuit 20 is put in operation to store the contents of a data register 11 in a fault data storage circuit 21. |
