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In this paper, we focus on register allocation techniques to simultaneously reduce energy consumption and heat buildup of register accesses. The conflict between these two objectives is resolved through the introduction of a hardware rotator. A register allocation algorithm followed by a refinement method is proposed based on the access patterns and the effects of the rotator. Experimental results...
Cache is known for its unpredictability in embedded systems. Cache locking technique is often utilized to guarantee a tighter prediction of Worst-Case Execution Time (WCET) which is one of the most important performance metrics for embedded systems. However, in Multi-Processor Systems-on-Chip (MPSoC) systems with multi-tasks, Level 2 (L2) cache is often shared among different tasks and cores, which...
Cache is effective in bridging the gap between processor and memory speed. It is also a source of unpredictability because of its dynamic and adaptive behavior. Worst-case execution time (WCET) of an application is one of the most important criteria for real-time embedded system design. The unpredictability of instruction miss/hit behavior in the instruction cache (I-Cache) leads to an unnecessary...
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