Processor and instruction control method

Details Processor and instruction control method Processor and instruction control method

2007-10-23

2007-10-23

Chan, Eddie (Department: 2183)

Electrical computers and digital processing systems: processing

Dynamic instruction dependency checking, monitoring or...

Scoreboarding, reservation station, or aliasing

C712S216000

Reexamination Certificate

active

10347337

ABSTRACT:
When a predetermined instruction is fetched and decoded, an instruction issuing unit develops the instruction operation into a multiflow of a previous flow and a following flow and issues the instruction by in-order. It is held into a reservation station. An instruction executing unit executes the instruction held in the reservation station by out-of-order. Further, an execution result of the instruction is committed by in-order. A multiflow guarantee processing unit guarantees an execution result of the previous flow stored in an allocation register on a register update buffer until the following flow is committed. Even if the previous flow is committed and the allocation register is released, the guaranteeing process is realized by stalling another instruction serving as a next register allocation destination in a decoding cycle until the following flow is committed.

REFERENCES:
patent: 5996063 (1999-11-01), Gaertner et al.
patent: 6266744 (2001-07-01), Hughes et al.
patent: 59123937 (1984-07-01), None
patent: 02148221 (1990-07-01), None
patent: 07-253888 (1995-10-01), None
patent: 2000-181702 (2000-06-01), None
“Lecture 5: Tomasulo Algorithm (I) Execution correctness, data dependence, instruction window, Tomasulo algorithm overview” © 1998.
“Lecture 6: Tomasulo Algorithm (II) Explanations of each stages, A big example” © 1998.

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