It has been found out that the key factors of affecting its performance are the ALU structure based on accumulator, the CISC architecture and the time of executing instructions.
分析发现基于累加器的ALU结构、CISC指令体系及指令的执行时间是影响其性能的关键因素。
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It has been found that the major limitations of typical 8-bit MCU are the ALU structure based on accumulator and the CISC architecture adopted in MCS-51 design.