题解 | #求两个数的差值#
求两个数的差值
https://www.nowcoder.com/practice/de8e9138214647f1826e99043a1b7990
`timescale 1ns/1ns
module data_minus(
input clk,
input rst_n,
input [7:0]a,
input [7:0]b,
output reg [8:0]c
);
always @(posedge clk or negedge rst_n)
begin
if(!rst_n)
begin
c<=0;
end
else
begin
if(a>b)
begin
c<=a-b;
end
else
begin
c<=b-a;
end
end
end
endmodule
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