帮我写一个cordic算法实现开方运算的Verilog代码
时间: 2024-05-24 10:09:58 浏览: 7
好的,我可以帮您写一个cordic算法实现开方运算的Verilog代码,以下是代码:
module cordic_sqrt(input signed [31:0] in_data, output signed [15:0] out_data);
parameter ITN = 12;
parameter WDT = 16;
parameter PI = 3.141592653589793238;
reg [WDT-1:0] x, y, z;
reg [ITN-1:0] i;
wire [WDT-1:0] x_next, y_next, z_next;
wire [WDT-1:0] x_last, y_last;
reg [WDT-1:0] sqrt_result;
assign x_next = x - (y >> i);
assign y_next = y + (x >> i);
assign z_next = z - (1 << i) * arctan(1 << i);
always @(posedge clk) begin
if (rst) begin
x <= in_data;
y <= 0;
z <= 0;
i <= 0;
end else begin
x <= x_next;
y <= y_next;
z <= z_next;
i <= i + 1;
if (i == ITN) begin
sqrt_result <= x_last;
end
end
end
function [WDT-1:0] arctan;
input [WDT-1:0] x;
begin
if (x >= 0) begin
arctan = 0;
end else begin
arctan = PI;
end
for (int i = 0; i < ITN; i = i + 1) begin
if (x >= 0) begin
x = x - (1 << i);
arctan = arctan + (1 << (2*i-WDT));
end else begin
x = x + (1 << i);
arctan = arctan - (1 << (2*i-WDT));
end
end
end
always @(posedge clk) begin
if (i == ITN) begin
x_last <= x;
y_last <= y;
end
end
assign out_data = sqrt_result;
endmodule
请注意,此代码仅供参考。如果您要用于生产或实际应用,请先进行全面测试,并进行必要的修改和优化。
相关推荐
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![](https://csdnimg.cn/download_wenku/file_type_ask_c1.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![rar](https://img-home.csdnimg.cn/images/20210720083606.png)
![zip](https://img-home.csdnimg.cn/images/20210720083736.png)
![docx](https://img-home.csdnimg.cn/images/20210720083331.png)