Delay slot handling in a processor

Details Delay slot handling in a processor Delay slot handling in a processor

2004-06-30

2010-12-28

Chan, Eddie P (Department: 2183)

Electrical computers and digital processing systems: processing

Instruction issuing

Reexamination Certificate

active

07861063

ABSTRACT:
In one embodiment, a processor comprises a fetch unit and a pick unit. The fetch unit is configured to fetch instructions for execution by the processor. The pick unit is configured to schedule instructions fetched by the fetch unit for execution in the processor. The pick unit is configured to inhibit scheduling a delayed control transfer instruction (DCTI) until a delay slot instruction of the DCTI is available for scheduling. For example, in some embodiments, the pick unit may inhibit scheduling until the delay slot instruction is written to an instruction buffer, until the delay slot instruction is fetched, etc.

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