题解 | #求两个数的差值#
求两个数的差值
http://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) c <= 9'd0; else if(a>b) c <= a-b; else c <= b-a; end endmodule
