mirror of
https://github.com/sehugg/8bitworkshop.git
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87 lines
2.8 KiB
JavaScript
87 lines
2.8 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", { value: true });
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exports.BaseZ80VDPBasedMachine = void 0;
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const ZilogZ80_1 = require("../common/cpu/ZilogZ80");
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const devices_1 = require("../common/devices");
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const emu_1 = require("../common/emu");
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const audio_1 = require("../common/audio");
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const tms9918a_1 = require("../common/video/tms9918a");
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const audioOversample = 2;
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class BaseZ80VDPBasedMachine extends devices_1.BasicScanlineMachine {
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constructor() {
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super(...arguments);
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this.cpuFrequency = 3579545; // MHz
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this.canvasWidth = 304;
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this.numTotalScanlines = 262;
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this.numVisibleScanlines = 240;
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this.cpuCyclesPerLine = this.cpuFrequency / (262 * 60);
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this.sampleRate = 262 * 60 * audioOversample;
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this.overscan = true;
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this.cpu = new ZilogZ80_1.Z80();
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}
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getKeyboardFunction() { return null; }
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init(membus, iobus, psg) {
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this.connectCPUMemoryBus(membus);
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this.connectCPUIOBus(iobus);
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this.handler = (0, emu_1.newKeyboardHandler)(this.inputs, this.getKeyboardMap(), this.getKeyboardFunction());
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this.psg = psg;
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this.audioadapter = psg && new audio_1.TssChannelAdapter(psg.psg, audioOversample, this.sampleRate);
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}
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connectVideo(pixels) {
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super.connectVideo(pixels);
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var cru = {
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setVDPInterrupt: (b) => {
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if (b) {
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this.vdpInterrupt();
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}
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else {
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// TODO: reset interrupt?
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}
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}
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};
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this.vdp = this.newVDP(this.pixels, cru, true);
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}
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connectProbe(probe) {
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super.connectProbe(probe);
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this.vdp.probe = probe || this.nullProbe;
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}
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newVDP(frameData, cru, flicker) {
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return new tms9918a_1.TMS9918A(frameData, cru, flicker);
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}
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startScanline() {
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this.audio && this.audioadapter && this.audioadapter.generate(this.audio);
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}
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drawScanline() {
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this.vdp.drawScanline(this.scanline);
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}
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loadState(state) {
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super.loadState(state);
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this.vdp.restoreState(state['vdp']);
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}
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saveState() {
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var state = super.saveState();
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state['vdp'] = this.vdp.getState();
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return state;
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}
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reset() {
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super.reset();
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this.vdp.reset();
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this.psg.reset();
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}
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getDebugCategories() {
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return ['CPU', 'Stack', 'VDP'];
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}
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getDebugInfo(category, state) {
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switch (category) {
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case 'VDP': return this.vdpStateToLongString(state.vdp);
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}
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}
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vdpStateToLongString(ppu) {
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return this.vdp.getRegsString();
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}
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readVRAMAddress(a) {
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return this.vdp.ram[a & 0x3fff];
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}
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}
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exports.BaseZ80VDPBasedMachine = BaseZ80VDPBasedMachine;
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//# sourceMappingURL=vdp_z80.js.map
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