77 lines
3.2 KiB
TypeScript
77 lines
3.2 KiB
TypeScript
// 74xx374 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 IC74xx374Init() {
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class IC74xx374 extends DILBase {
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private clock = false;
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private internalstate: boolean[];
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private oldinternalstate: boolean[];
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constructor(simulator: Simulator, id: string, param: BaseComponentParam) {
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super(simulator, id, 20, param);
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this.internalstate = [];
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this.oldinternalstate = [];
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for (let i = 0; i <= 8; ++i) {
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this.internalstate[i] = false;
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this.oldinternalstate[i] = false;
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}
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}
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setup(canvas: SVGElement) {
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super.DILBASEsetup('ic20', canvas, '74xx374');
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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('p20') !== WireState.high || this.getStateWire('p10') !== WireState.low) return false; // no power
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if (this.binary(this.getStateWire('p11'), true) && this.clock === false) {
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this.oldinternalstate = this.internalstate;
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this.internalstate[0] = this.binary(this.getStateWire('p3'), true);
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this.internalstate[1] = this.binary(this.getStateWire('p4'), true);
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this.internalstate[2] = this.binary(this.getStateWire('p7'), true);
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this.internalstate[3] = this.binary(this.getStateWire('p8'), true);
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this.internalstate[4] = this.binary(this.getStateWire('p13'), true);
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this.internalstate[5] = this.binary(this.getStateWire('p14'), true);
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this.internalstate[6] = this.binary(this.getStateWire('p16'), true);
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this.internalstate[7] = this.binary(this.getStateWire('p18'), true);
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}
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let mod = false;
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if (this.binary(this.getStateWire('p1'), true) === false) {
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this.getPin('p2').setBool(this.internalstate[0]);
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this.getPin('p5').setBool(this.internalstate[1]);
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this.getPin('p6').setBool(this.internalstate[2]);
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this.getPin('p9').setBool(this.internalstate[3]);
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this.getPin('p12').setBool(this.internalstate[4]);
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this.getPin('p15').setBool(this.internalstate[5]);
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this.getPin('p16').setBool(this.internalstate[6]);
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this.getPin('p19').setBool(this.internalstate[7]);
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mod = this.internalstate !== this.oldinternalstate;
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}
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this.clock = this.binary(this.getStateWire('p11'), true);
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return mod;
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}
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}
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window.IC74xx374 = IC74xx374;
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}
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// eslint-disable-next-line @typescript-eslint/no-unused-vars
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function IC74xx374Depends() {
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return 'dilbase';
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}
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