Processor device and instruction processing method
AssigneeFujitsu Limited
InventorMasaki Ukai
Life of this patent
Estimating the term…
Abstract
A cache receives a request from an instruction execution unit, searches for necessary data, outputs the data to the instruction execution unit if there is a cache hit, and instructs a request storage unit to request a move-in of the data if a cache miss occurs. The request storage unit stores therein the request corresponding to the instruction of the cache while the requested process is being executed. A REQID assignment unit reads the request stored in the request storage unit, selects an unused REQID from a REQID table, and assigns the unused REQID to the read request. The REQID is an identification number of the request based on the number of requests set as the maximum number that can be received at a simultaneous time by a system controller of the response side.
Claims12
A processor device that issues a request for a process to an external device, the processor device comprising:
- an execution unit that executes a predetermined instruction;
- a storage unit that stores therein requests for processes sequentially generated by execution of instructions by the execution unit;
- and
- a transmission unit that assigns to each of the requests stored in the storage unit identification information corresponding to a number of requests that can be simultaneously received by the external device and transmits the request with the identification information to the external device.
An instruction processing method of issuing a request for a process to an external device, the instruction processing method comprising:
- executing a predetermined instruction;
- storing requests for processes sequentially generated by execution of instructions at the executing;
- assigning identification information corresponding to a number of requests that can be simultaneously received by the external device to each of the request stored at the storing;
- and
- a step of transmitting the request with the identification information assigned thereto at the assigning to the external device.
Dependencies are inferred from the claim text.