48 lines
1.0 KiB
TypeScript
48 lines
1.0 KiB
TypeScript
import { debug } from '../util';
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import { Card, Restorable, byte } from '../types';
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import { rom } from '../roms/cards/parallel';
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const LOC = {
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IOREG: 0x80
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} as const;
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export interface ParallelState {}
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export interface ParallelOptions {
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putChar: (val: byte) => void;
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}
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export default class Parallel implements Card, Restorable<ParallelState> {
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constructor(private cbs: ParallelOptions) {
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debug('Parallel card');
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}
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private access(off: byte, val?: byte) {
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switch (off & 0x8f) {
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case LOC.IOREG:
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if (this.cbs.putChar && val) {
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this.cbs.putChar(val);
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}
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break;
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default:
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debug('Parallel card unknown softswitch', off);
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}
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return 0;
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}
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ioSwitch(off: byte, val?: byte) {
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return this.access(off, val);
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}
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read(_page: byte, off: byte) {
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return rom[off];
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}
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write() {}
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getState() {
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return {};
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}
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setState(_state: ParallelState) {}
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}
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