G - Physics – 06 – F
Patent
G - Physics
06
F
354/230.8
G06F 9/38 (2006.01) G06F 9/318 (2006.01)
Patent
CA 2039640
Scalable compound instruction set machine and method which provides for processing a set of instructions or program to be executed by a computer to determine statically which instructions may be combined into compound instructions which are executed in parallel by a scalar machine. Such processing looks for classes of instructions that can be executed in parallel without data-dependent or hardware-dependent interlocks. Without regard to their original sequence the individual instructions are combined with one or more other individual instructions to form a compound instruction which eliminates interlocks. Control information is appended to identify information relevant to the execution of the compound instructions. The result is a stream of scalar instructions compounded or grouped together before instruction decode time so that they are already flagged and identified for selective simultaneous parallel execution by execution units. The compounding does not change the object code results and existing programs realize performance improvements while maintaining compatibility with previously implemented systems for which the original set of instructions was provided.
Blaner Bartholomew
Vassiliadis Stamatis
International Business Machines Corporation
Saunders Raymond H.
LandOfFree
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