本程序为加密芯片内部加密运算单元部分，包括32位减法器、移位寄存器、加/减法器、寄存器等，对密码芯片运算部分设计具有一定指导意义-The procedure for encryption chip unit internal encryption algorithms, including 32-bit subtraction, and shift register, add/subtraction, and register and so on password-chip design has a certain computing guide