Mechanism for enabling efficient execution of an instruction

Details Mechanism for enabling efficient execution of an instruction Mechanism for enabling efficient execution of an instruction

2005-06-07

2005-06-07

Treat, William M. (Department: 2183)

Electrical computers and digital processing systems: processing

Processing control

Specialized instruction processing in support of testing,...

C717S139000

Reexamination Certificate

active

06904516

ABSTRACT:
A mechanism is provided for execution of an instruction having one or more parameters that need to be resolved at runtime. Instructions being executed may be stored in non-rewritable storage. The present invention allows costly parameter resolution to be circumvented during subsequent executions of the same instruction. An interpreter invokes an optimization module when it encounters an instruction with one or more associated parameters that need to be resolved at runtime. If the optimization module determines that resolved values associated with the instruction are available in a cache, then optimization module obtains resolved values associated with the instruction from the cache. Resolving parameters into their corresponding object references is time-consuming and utilizes valuable computer resources. By obtaining resolved values stored during a previous execution of an instruction, the optimization module avoids repeatedly resolving parameters associated with an instruction. This enables efficient execution of an instruction.

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