实验报告,EDA

3'd1: out=8'b11111101; 3'd2: out=8'b11111011; 3'd3: out=8'b11110111; 3'd4: out=8'b11101111; 3'd5: out=8'b11011111; 3'd6: out=8'b10111111; 3'd7: out=8'b01111111; endcase end

endmodule

module decode4_7(decodeout,indec); output[6:0] decodeout; input[3:0] indec; reg[6:0] decodeout; always @(indec) begin

case(indec) //用case 语句进行译码 4'd0:decodeout=7'b1111110; 4'd1:decodeout=7'b0110000; 4'd2:decodeout=7'b1101101; 4'd3:decodeout=7'b1111001;

4'd4:decodeout=7'b0110011; 4'd5:decodeout=7'b1011011; 4'd6:decodeout=7'b1011111; 4'd7:decodeout=7'b1110000; 4'd8:decodeout=7'b1111111; 4'd9:decodeout=7'b1111011; default: decodeout=7'bx; endcase end

Endmodule

仿真：