题解 | #多位信号xnor#
`timescale 1ns/1ns
module top_module(
input a, b, c, d, e,
output [24:0] out
);
wire [24:0]t1,t2;//注意这里一定要标明位数
assign t1 = {{5{a}},{5{b}},{5{c}},{5{d}},{5{e}}};//位拼接运算符这一定要把5{a}放在{}这里面
assign t2 = {5{a,b,c,d,e}};
assign out = ~t1 ^ t2;//同或可以完成相同为一的功能，但要注意不能写成~(t1 ^ t2);也可用循环完成
endmodule
/*循环完成
`timescale 1ns/1ns
module top_module(
input a, b, c, d, e,
output [24:0] out
);
wire [24:0] tmp0,tmp1;
assign tmp0[24:0] = {{5{a}},{5{b}},{5{c}},{5{d}},{5{e}}};
assign tmp1[24:0] = {5{a,b,c,d,e}};
genvar i;
generate
for(i = 0;i < 25;i = i + 1) begin
assign out[i] = (tmp0[i] == tmp1[i]);
end
endgenerate
endmodule
*/
