Deeply studied the length of the 486 instructions, frequency in using of the instructions, the character of the instruction encoder. Brought out the design idea to speedup decoding.
对486指令系统的指令长度、指令的使用频率、指令的编码特点进行了深入分析，提出了加快译码速度的设计方案。
The encoding unit, composed of instruction buffer and command encoder, translates the 12-bit command code to 16-bit control signal, and ensures each part of the system to work steadily.
译码单元由指令缓存器和指令译码器构成，针对12位的指令代码翻译成16位控制信号，传送给处理器内部各个部件，用以保证各部件正常工作。
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