82 lines
1.9 KiB
TypeScript
82 lines
1.9 KiB
TypeScript
"use strict";
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import { Platform, BaseZ80Platform, BaseMAMEPlatform } from "../baseplatform";
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import { PLATFORMS, RAM, newAddressDecoder, padBytes } from "../emu";
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var BASEZ80_PRESETS = [
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{id:'simple1.c', name:'Multiply by 2'},
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{id:'simple2.c', name:'Divide by 4'},
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{id:'prng.c', name:'Pseudorandom Numbers'},
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{id:'fib.c', name:'Fibonacci'},
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{id:'gfx.c', name:'Graphics'},
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{id:'empty.c', name:'Your Code Here...'},
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];
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var Base_Z80Platform = function(mainElement) {
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var self = this;
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this.__proto__ = new (BaseZ80Platform as any)();
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var cpu, ram, membus, iobus, rom, timer;
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this.getPresets = function() {
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return BASEZ80_PRESETS;
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}
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this.start = function() {
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ram = new RAM(0x8000);
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membus = {
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read: newAddressDecoder([
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[0x0000, 0x7fff, 0x7fff, function(a) { return rom ? rom[a] : null; }],
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[0x8000, 0xffff, 0x7fff, function(a) { return ram.mem[a]; }],
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]),
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write: newAddressDecoder([
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[0x8000, 0xffff, 0x7fff, function(a,v) { ram.mem[a] = v; }],
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]),
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};
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this.readAddress = membus.read;
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iobus = {
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read: function(addr) {
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return 0;
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},
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write: function(addr, val) {
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}
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};
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cpu = this.newCPU(membus, iobus);
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}
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this.loadROM = function(title, data) {
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rom = padBytes(data, 0x8000);
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self.reset();
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}
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this.loadState = function(state) {
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cpu.loadState(state.c);
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ram.mem.set(state.b);
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}
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this.saveState = function() {
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return {
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c:self.getCPUState(),
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b:ram.mem.slice(0),
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};
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}
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this.getCPUState = function() {
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return cpu.saveState();
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}
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this.isRunning = function() {
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return timer && timer.isRunning();
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}
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this.pause = function() {
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if (timer) timer.stop();
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}
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this.resume = function() {
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if (timer) timer.start();
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}
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this.reset = function() {
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cpu.reset();
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if (!this.getDebugCallback()) cpu.setTstates(0); // TODO?
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}
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}
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PLATFORMS['base_z80'] = Base_Z80Platform;
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