| 摘要 |
PURPOSE:To control efficiently a channel buffer by identifying the kind of a channel on the way of accessing a memory and controlling the channel buffer. CONSTITUTION:A main storage control part 4 incorporates the channel buffer 41. The interface from a channel processor 3 to the main storage control part 4 is provided with a flag. The main storage part 4 recognizes this flag to identify the kind of a channel which attains to memory access, and laters the control over the channel buffer 41. When memory access is attained from a multiplexer channel, that is registered in the channel buffer 41 regardless of whether the access is fetch or store to inhibit writing operation. |
