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US 6,789,185 B1Granted
Instruction control apparatus and method using micro program
AssigneeFujitsu Limited
InventorsNorihito Gomyo, Aiichiro Inoue
Life of this patent
Estimating the term…
Abstract
A control reservation station stores the control information of a micro program to control one or more flows of an instruction process and controls each flow using the control information. A data buffer stores data to be used to control each flow and outputs the data at an appropriate timing.
Claims15
An instruction control apparatus, comprising:
- a storage device storing a micro program for controlling one or more flows of an instruction process;
- and
- a control reservation station circuit storing control information of the micro program for each flow including an operation execution pipeline of an operation execution unit, outputting the control information to the operation execution pipeline in synchronization with a process at each stage of the operation execution pipeline, and controlling an operation of the operation execution pipeline of each flow using the control information.
An instruction control apparatus, comprising:
- an instruction reservation station circuit managing an instruction process;
- and
- a control reservation station circuit storing control information to control the instruction process at each stage of the operation execution pipeline of an operation execution unit, outputting the control information to the operation execution pipeline in synchronization with the instruction process and controlling the instruction process of the operation execution pipeline using the control information.
An instruction control method, comprising:
- managing an instruction process using both a micro program to control one or more flows of an instruction process and an instruction reservation station;
- storing control information of the micro program in a control reservation station for each flow including an operation execution pipeline of an operation execution unit;
- outputting the control information from the control reservation station to the operation execution pipeline in synchronization with a process at each stage of the operation execution pipeline;
- and
- controlling an operation of the operation execution pipeline of each flow using the control information.
2 more elements
An instruction control apparatus, comprising:
- storage means for storing a micro program to control one or more flows of an instruction process;
- and
- control reservation station means for storing control information of the micro program for each flow including an operation execution pipeline of an operation execution unit, outputting the control information to the operation execution pipeline in synchronization with a process at each stage of the operation execution pipeline, and controlling an operation of the operation execution pipeline of each flow using the control information.
An instruction control apparatus, comprising:
- instruction reservation station means for managing an instruction process;
- and
- control reservation station means for storing control information to control the instruction process at each stare of the operation execution pipeline of an operation execution unit, outputting the control information to the operation execution pipeline in synchronization with the instruction process and controlling the instruction process of the operation execution pipeline using the control information.
Dependencies are inferred from the claim text.