Compare and Mask Configure Instruction for Conditional Execution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Modern integrated circuits face inefficiencies in executing conditional statements due to costly encoding space requirements for dedicated predicates and conditional flags, particularly with increasing software complexity.
Innovation Solution
The implementation of a compare and mask configure instruction that generates a multiple bit mask, allowing for efficient execution of complex control sequences without allocating additional encoding bits or using high fan-out predication flags, and enabling parallel comparisons and algorithmic operations to simplify conditional statement execution.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If dedicated predicates with dedicated fields in instructions are used to execute conditional statements, then conditional statement execution is enabled, but encoding space is consumed excessively
Solution Approach 1:
The patent makes general-purpose registers serve dual functions: both as data containers and as predicates for conditional statements. By allowing any register to act as a predicate through the use of a mask register and comparison mechanism, the system eliminates the need for dedicated predicate registers, thereby reducing encoding space while maintaining full conditional execution capability.
Solution Approach 2:
The patent extracts the predicate functionality from dedicated hardware fields and relocates it to general-purpose registers controlled by a mask register. This extraction allows the same hardware resources (registers) to serve multiple purposes, reducing the specialized hardware footprint and encoding requirements for conditional statements.
2Reliability
If multiple dedicated predicates are allocated to handle complex conditional statements, then execution accuracy is improved, but encoding space and device complexity increase
Solution Approach 1:
The patent segments the conditional execution logic into separate functional components: a comparison unit that evaluates conditions, a mask register that stores the comparison result, and general-purpose registers that hold both data and predicate values. This segmentation allows complex conditional logic to be handled through a systematic process rather than requiring multiple dedicated predicate hardware elements.
Solution Approach 2:
The mask register serves as an intermediary between the comparison result and the final conditional execution. It receives the comparison outcome and uses it to control which register values are used for subsequent operations, enabling accurate conditional statement execution without requiring multiple dedicated predicate registers.
3Device complexity
If a single true flag is used to indicate condition fulfillment, then encoding space is reduced, but the ability to handle complex conditional statements is limited
Solution Approach 1:
The patent introduces dynamic control through the mask register, which can be configured differently for each conditional statement based on the comparison results. This dynamic configuration allows a single flag mechanism to handle complex conditional logic by adapting its behavior through software-controlled masking rather than requiring multiple static dedicated predicates.
Data Source
AI summary
A method for executing an instruction, the method includes: executing a compare and configure mask instruction, wherein the executing comprises: performing a comparison to provide a comparison result; and configuring, in response to the comparison result, a multiple bit mask that is stored in a multiple-purpose register; wherein all bits of the multiple bit mask are configured to have the same value; and applying an algorithmic operation on the multiple bit mask to provide an algorithmic operation result; wherein the algorithmic operation result represents an outcome of a high level programming language conditional statement.