VHDL 8位无符号除法器 试验报告

计算前在A和B端口输入被除数和除数，然后在Load线上送高电平，把数据存到除法计算电路内部，然后经过若干个时钟周期，计算出商和余数，并在C和D端输出。

其实现方法是，将除法器分为两个状态：等待状态与运算状态。

开始时除法器处于等待状态，在该状态，在每一时钟上升沿，采样Load信号线，若是低电平，则仍处于等待状态，如果采样到高电平，除法器读取A，B数据线上的输入数据，保存到内部寄存器a_r，b_r，置c_r为0，d_r为a_r，判断除数是否为零，若不为零则进入运算状态。

-VHDL eight unsigned divider calculation of the test report before the A and B ports to import and dividend divider, and then sent to I Load line, the data are uploaded to the internal division calculation circuit, and then after a number of clock cycles, and worked out more than a few, and in the C-and D output. Their method is to be divided into two division for the state : waiting for the state and Operational state. At the beginning divider waiting for the state, in the state in each clock rising edge, sampling Load signal line, if low-level, it is still waiting for the state, if the sampling to allow high output, Divider read A, B online data input data, preservation of the internal registers renovation r, b_r, home c_r 0, d_r a_r to determine whether the divisor zero, if not zero, it