设计的CPU字长为16位，可以实现子程序调用，分支，循环及各种算术逻辑运算等功能。

访存的指令采用寄存器间址寻址(R)或是基址寻址X(R)实现，

-Design CPU 16 word length can be achieved subroutine calls, branches, loops, and various arithmetic and logical operations and other functions. Between instruction fetch register using indexed addressing (R) Based addressing or X (R) implementation,