计算机组成原理实现，能够实现定点小数的机器数表示、定点小数的变形补码加减运算、定点小数的原码一位乘法运算和浮点数的加减运算。-Principles of Computer Organization implementation，Able to achieve the number of fixed-point decimal machines, the deformation of the fixed-point decimal addition and subtraction of complement fixed-point decimal code a multiplication and floating-point addition and subtraction.