// Logic NOT component for the LogicSimulator // Copyright (C) 2022 Sascha Nitsch // 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 3 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, see . // eslint-disable-next-line @typescript-eslint/no-unused-vars class LogicNot extends BaseComponent { private a = false; private q = false; constructor(simulator: Simulator, id: string, param: BaseComponentParam) { super(simulator, id, param); this.pins.set('a', new TriState(this, -30, 0)); this.pins.set('q', new TriState(this, 30, 0)); } setup(canvas: SVGElement) { super.doSetup('logicnot', canvas); } io() { this.a = this.binary(this.getPin('a').getAndReset(), true); } update(): boolean { const oldstate = this.q; this.q = this.a !== true; this.getPin('q').setBool(this.q); return oldstate !== this.q; } }