verilog實現38譯碼器
阿新 • • 發佈:2019-01-07
module decode_38 (
input wire[2:0] a,
output reg[7:0] y
);
integer i;
always @(*) begin //******
for (i=0;i<8;i=i+1) begin
if (a==i)
y[i]<=1;
else y[i]<=0;
end
end
endmodule
module decode_38_tb; reg A,B,C; wire [7:0] y; wire [2:0] a; assign a={A,B,C}; decode_38 D(.a(a), .y(y) ); initial begin A=0;B=0;C=0;#100; A=0;B=0;C=1;#100; A=0;B=1;C=0;#100; A=0;B=1;C=1;#100; A=1;B=0;C=0;#100; A=1;B=0;C=1;#100; A=1;B=1;C=0;#100; A=1;B=1;C=1;#100; end endmodule