题解 | #优先编码器Ⅰ#
优先编码器Ⅰ
https://www.nowcoder.com/practice/a7068b8f4c824d6a9592f691990b21de
`timescale 1ns/1ns module encoder_83( input [7:0] I , input EI , output reg [2:0] Y , output reg GS , output reg EO ); always@(*)(1444584) begin if(!EI) begin GS = 0; EO = 0; Y = 3'b0; end else if(I == 8'b0000_0000) begin GS = 0; EO = 1; Y = 3'b0; end else begin GS = 1; EO = 0; casex(I) 8'b1xxx_xxxx: begin Y = 3'b111; end 8'b01xx_xxxx: begin Y = 3'b110; end 8'b001x_xxxx: begin Y = 3'b101; end 8'b0001_xxxx: begin ; Y = 3'b100; end 8'b0000_1xxx: begin Y = 3'b011; end 8'b0000_01xx: begin Y = 3'b010; end 8'b0000_001x: begin Y = 3'b001; end 8'b0000_0001: begin Y = 3'b000; end default: Y = 3'b000; endcase end end endmodule