Processor Macroinstruction for Constant Stride Integer Sequence Generation
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Solution Overview
Problem
Existing processors require numerous instructions to generate control indexes for permute and shuffle operations, leading to increased processing time, resource utilization, and power consumption, and often necessitate regeneration or retrieval from memory.
Innovation Solution
Incorporating instructions that can generate control indexes entirely within a single macroinstruction, using sequences of non-negative integers in numerical order with specific patterns, such as constant stride or parity, to reduce the number of instructions and processing time, and store them efficiently within the processor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If existing processors use multiple instructions to generate control indexes for permute and shuffle operations, then the control indexes can be generated with sufficient precision, but the processing time increases and power consumption increases
Solution Approach 1:
The patent combines multiple instructions into a single macroinstruction that simultaneously generates control indexes and performs permute or shuffle operations. This merging eliminates the need for separate instruction execution steps, reducing processing time while maintaining the precision required for control index generation through integrated hardware logic.
Solution Approach 2:
The macroinstruction performs preliminary generation of control indexes within the same instruction cycle that performs the permute or shuffle operation. By preparing the control indexes in advance as part of the instruction execution flow rather than as a separate preprocessing step, the system reduces overall processing time without sacrificing index precision.
2Measurement precision
If existing processors use multiple instructions to generate control indexes, then the control indexes can be generated accurately, but the number of instructions increases and device complexity increases
Solution Approach 1:
The patent merges the control index generation function with the permute and shuffle instructions into a single macroinstruction. This consolidation reduces the total number of instructions required while maintaining accurate control index generation through integrated hardware that performs both functions simultaneously within the instruction execution unit.
3Ease of operation
If existing processors retrieve control indexes from memory, then the control indexes can be obtained, but power consumption increases and processing time increases
Solution Approach 1:
The macroinstruction generates control indexes self-sufficiently within the processor execution unit without requiring external memory retrieval. This self-service approach eliminates memory access operations, thereby reducing power consumption and processing time while ensuring control indexes are obtained accurately for the permute and shuffle operations.
4Adaptability or versatility
If existing processors use multiple instructions to generate control indexes, then the control indexes can be generated, but the regeneration time increases when indexes are needed again
Solution Approach 1:
The macroinstruction performs preliminary generation of control indexes as an integrated part of the instruction execution process. By embedding the generation logic within the macroinstruction itself, the system prepares control indexes in advance during normal operation, enabling rapid regeneration when needed without requiring time-consuming separate generation steps, thus improving adaptability while reducing regeneration time.
Data Source
AI summary
A method of an aspect includes receiving an instruction indicating a destination storage location. A result is stored in the destination storage location in response to the instruction. The result includes a sequence of at least four non-negative integers in numerical order with all integers in consecutive positions differing by a constant stride of at least two. In an aspect, storing the result including the sequence of the at least four integers is performed without calculating the at least four integers using a result of a preceding instruction. Other methods, apparatus, systems, and instructions are disclosed.