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Non-volatile memories are good candidates for DRAM replacement as main memory in embedded systems and they have many desirable characteristics. Nevertheless, the disadvantages of non-volatile memory co-exist with its advantages. First, the lifetime of some of the non-volatile memories is limited by the number of erase operations. Second, read and write operations have asymmetric speed or power consumption...
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...
Multiple memory banks with bank switching is a technique to increase memory size without extending address buses. A special instruction, Bank Selection Instruction (BSL) is inserted into the original programs to modify the bank register to point to the right bank, which increases both the code size and runtime overhead. In this paper, we carefully partition variables into different banks and insert...
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