X microprocessor is a high performance one in CISC, whose Floating-Point Unit (FPU) has very powerful abilities of processing numerical value. The FPU supports integer, floating-point and packed BCD data formats that the IEEE754-85 standard difines.

• X微处理器是一款高性能的CISC微处理器，其浮点部件(FPU)具有非常强大的数值计算能力，支持IEEE754和854标准中定义的实数，整数和压缩BCD码等数据类型。