说明： 整型寄存器中的值被解释为有符号的二进制补码数，而reg寄存器或时间寄存器中的值被解释为无符号数。实数和实数时间类型寄存器中的值被解释为有符号浮点数。
(integer value of the register be interpreted as a symbol of the binary complement, rather reg register or time value of the register was no explanation for the symbols. Real-time and the actual type of register values are interpreted as a symbol float.)
