四位二进制数据比较器

Compare[四位二进制比较器]

模块文件

module compare(a,b,f1,f2,f3);

input[3:0]a,b;

output f1,f2,f3;

reg f1,f2,f3;

always@(a or b)

begin

if(a>b) begin f1=1;f2=0;f3=0; end

else if(a

else if(a==b) begin f1=0;f2=0;f3=1; end

end

endmodule

测试文件

module compare_t;

reg[3:0]a_t,b_t;

wire f1_t,f2_t,f3_t;

initial

begin

a_t=0;

b_t=0;

#10 a_t=4'b0010;

b_t=4'b0010;

#10 a_t=4'b0101;

b_t=4'b0010;

#10 a_t=4'b0001;

b_t=4'b0110;

end

compare m(.a(a_t),.b(b_t),.f1(f1_t),.f2(f2_t),.f3(f3_t));

endmodule