题解 | #使用子模块实现三输入数的大小比较#
使用子模块实现三输入数的大小比较
https://www.nowcoder.com/practice/bfc9e2f37fe84c678f6fd04dbce0ad27
`timescale 1ns/1ns module main_mod( input clk, input rst_n, input [7:0]a, input [7:0]b, input [7:0]c, output [7:0]d ); wire [7:0] d0,d1,d2; min_num u0 ( .clk (clk) , .rst_n (rst_n), .a(a), .b(b), .c(d0) ); min_num u1 ( .clk (clk) , .rst_n (rst_n), .a(b), .b(c), .c(d1) ); min_num u2 ( .clk (clk) , .rst_n (rst_n), .a(d0), .b(d1), .c(d2) ); assign d = d2; endmodule module min_num ( input clk , input rst_n , input [7:0] a, input [7:0] b, output reg [7:0] c ); always@(posedge clk or negedge rst_n) if(!rst_n) c <= 8'd0; else if(a<b) c <= a; else c <= b; endmodule
