//============================================================================ // SNK Alpha68k for MiSTer // // Copyright (C) 2020 Sean 'Furrtek' Gonsalves // // This program is free software; you can redistribute it and/or modify it // under the terms of the GNU General Public License as published by the Free // Software Foundation; either version 2 of the License, or (at your option) // any later version. // // This program is distributed in the hope that it will be useful, but WITHOUT // ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for // more details. // // You should have received a copy of the GNU General Public License along // with this program; if not, write to the Free Software Foundation, Inc., // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. //============================================================================ module C74669 ( input [2:0] IN, input E1, nE2, nE3, output reg [7:0] OUT ); always @(*) begin case ({E1, E2, E3, IN) 6'b100000: OUT <= 8'b11111110; 6'b100001: OUT <= 8'b11111101; 6'b100010: OUT <= 8'b11111011; 6'b100011: OUT <= 8'b11110111; 6'b100100: OUT <= 8'b11101111; 6'b100101: OUT <= 8'b11011111; 6'b100110: OUT <= 8'b10111111; 6'b100111: OUT <= 8'b01111111; default: OUT <= 8'b11111111; endcase end endmodule