| // Copyright (C) 2019-2022 The SymbiFlow Authors | |
| // | |
| // Use of this source code is governed by a ISC-style | |
| // license that can be found in the LICENSE file or at | |
| // https://opensource.org/licenses/ISC | |
| // | |
| // SPDX-License-Identifier: ISC | |
| (* keep_hierarchy *) | |
| module my_lut ( | |
| input wire [3:0] i, | |
| output wire o | |
| ); | |
| LUT4 #( | |
| .INIT(16'hAAAA) | |
| ) my_lut ( | |
| .I0(i[0]), | |
| .I1(i[1]), | |
| .I2(i[2]), | |
| .I3(1'bx), | |
| .O (o) | |
| ); | |
| endmodule | |
| module my_top ( | |
| input wire i, | |
| output wire o | |
| ); | |
| my_lut my_lut ( | |
| .i({1'b0, 1'b1, i}), | |
| .o(o) | |
| ); | |
| endmodule |