题解 | #优先编码器Ⅰ#

`timescale 1ns/1ns

module encoder_83(
   input      [7:0]       I   ,
   input                  EI  ,
   
   output wire [2:0]      Y   ,
   output wire            GS  ,
   output wire            EO    
);

assign  Y = ~EI? 3'd0:I[7]? 3'd7:I[6]? 3'd6:I[5]? 3'd5:I[4]? 3'd4:
                I[3]? 3'd3:I[2]? 3'd2:I[1]? 3'd1:3'd0;

assign GS = |I && EI;
assign EO = ~|I && EI;

endmodule