题解 | #使用函数实现数据大小端转换#

`timescale 1ns/1ns
module function_mod(
    input [3:0]a,
    input [3:0]b,
     
    output [3:0]c,
    output [3:0]d
);
assign c = data_rev(a);
assign d = data_rev(b);
 
function [3:0] data_rev(input [3:0]data_in);
	reg [3:0]data_rev;
	integer i;
   begin        
        for(i=0;i<4;i=i+1)
            data_rev[i]=data_in[3-i];
        end
endfunction
 
endmodule