blob: a25782b268ba9e4a88557bc3e6981f50bc75e95d [file] [log] [blame]
/**
* Copyright 2020 The SkyWater PDK Authors
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* SPDX-License-Identifier: Apache-2.0
*/
`ifndef SKY130_FD_SC_MS__MUX4_TB_V
`define SKY130_FD_SC_MS__MUX4_TB_V
/**
* mux4: 4-input multiplexer.
*
* Autogenerated test bench.
*
* WARNING: This file is autogenerated, do not modify directly!
*/
`timescale 1ns / 1ps
`default_nettype none
`include "sky130_fd_sc_ms__mux4.v"
module top();
// Inputs are registered
reg A0;
reg A1;
reg A2;
reg A3;
reg S0;
reg S1;
reg VPWR;
reg VGND;
reg VPB;
reg VNB;
// Outputs are wires
wire X;
initial
begin
// Initial state is x for all inputs.
A0 = 1'bX;
A1 = 1'bX;
A2 = 1'bX;
A3 = 1'bX;
S0 = 1'bX;
S1 = 1'bX;
VGND = 1'bX;
VNB = 1'bX;
VPB = 1'bX;
VPWR = 1'bX;
#20 A0 = 1'b0;
#40 A1 = 1'b0;
#60 A2 = 1'b0;
#80 A3 = 1'b0;
#100 S0 = 1'b0;
#120 S1 = 1'b0;
#140 VGND = 1'b0;
#160 VNB = 1'b0;
#180 VPB = 1'b0;
#200 VPWR = 1'b0;
#220 A0 = 1'b1;
#240 A1 = 1'b1;
#260 A2 = 1'b1;
#280 A3 = 1'b1;
#300 S0 = 1'b1;
#320 S1 = 1'b1;
#340 VGND = 1'b1;
#360 VNB = 1'b1;
#380 VPB = 1'b1;
#400 VPWR = 1'b1;
#420 A0 = 1'b0;
#440 A1 = 1'b0;
#460 A2 = 1'b0;
#480 A3 = 1'b0;
#500 S0 = 1'b0;
#520 S1 = 1'b0;
#540 VGND = 1'b0;
#560 VNB = 1'b0;
#580 VPB = 1'b0;
#600 VPWR = 1'b0;
#620 VPWR = 1'b1;
#640 VPB = 1'b1;
#660 VNB = 1'b1;
#680 VGND = 1'b1;
#700 S1 = 1'b1;
#720 S0 = 1'b1;
#740 A3 = 1'b1;
#760 A2 = 1'b1;
#780 A1 = 1'b1;
#800 A0 = 1'b1;
#820 VPWR = 1'bx;
#840 VPB = 1'bx;
#860 VNB = 1'bx;
#880 VGND = 1'bx;
#900 S1 = 1'bx;
#920 S0 = 1'bx;
#940 A3 = 1'bx;
#960 A2 = 1'bx;
#980 A1 = 1'bx;
#1000 A0 = 1'bx;
end
sky130_fd_sc_ms__mux4 dut (.A0(A0), .A1(A1), .A2(A2), .A3(A3), .S0(S0), .S1(S1), .VPWR(VPWR), .VGND(VGND), .VPB(VPB), .VNB(VNB), .X(X));
endmodule
`default_nettype wire
`endif // SKY130_FD_SC_MS__MUX4_TB_V