79 lines
2.9 KiB
TypeScript
79 lines
2.9 KiB
TypeScript
// 74xx00 emulation component for the LogicSimulator
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// Copyright (C) 2022 Sascha Nitsch
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// This program is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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// You should have received a copy of the GNU General Public License
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// along with this program. If not, see <https://www.gnu.org/licenses/>.
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// eslint-disable-next-line @typescript-eslint/no-unused-vars
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function IC74xx00Init() {
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class IC74xx00 extends DILBase {
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constructor(simulator: Simulator, id: string, param: BaseComponentParam) {
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super(simulator, id, 14, param);
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}
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setup(canvas: SVGElement) {
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super.DILBASEsetup('ic14', canvas, '74xx00');
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}
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update(): boolean {
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if (this.startdelay) {
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--this.startdelay;
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return false;
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}
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if (this.getStateWire('p14') !== WireState.high || this.getStateWire('p7') !== WireState.low) return false; // no power
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let oldstate;
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let mod = false;
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let s;
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oldstate = this.getStateWire('p3');
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s = !(
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this.binary(this.getStateWire('p1'), true) !== false && this.binary(this.getStateWire('p2'), true) !== false
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);
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this.stateMapWire.set('p3', s ? WireState.high : WireState.low);
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mod ||= this.getStateWire('p3') !== oldstate;
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oldstate = this.getStateWire('p6');
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s = !(
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this.binary(this.getStateWire('p4'), true) !== false && this.binary(this.getStateWire('p5'), true) !== false
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);
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this.stateMapWire.set('p6', s ? WireState.high : WireState.low);
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mod ||= this.getStateWire('p6') !== oldstate;
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oldstate = this.getStateWire('p8');
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s = !(
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this.binary(this.getStateWire('p9'), true) !== false && this.binary(this.getStateWire('p10'), true) !== false
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);
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this.stateMapWire.set('p8', s ? WireState.high : WireState.low);
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mod ||= this.getStateWire('p8') !== oldstate;
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oldstate = this.getStateWire('p11');
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s = !(
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this.binary(this.getStateWire('p12'), true) !== false && this.binary(this.getStateWire('p13'), true) !== false
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);
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this.stateMapWire.set('p11', s ? WireState.high : WireState.low);
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mod ||= this.getStateWire('p11') !== oldstate;
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this.getPin('p3').setState(this.getStateWire('p3'));
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this.getPin('p6').setState(this.getStateWire('p6'));
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this.getPin('p8').setState(this.getStateWire('p8'));
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this.getPin('p11').setState(this.getStateWire('p11'));
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return mod;
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}
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}
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window.IC74xx00 = IC74xx00;
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}
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// eslint-disable-next-line @typescript-eslint/no-unused-vars
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function IC74xx00Depends() {
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return 'dilbase';
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}
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