313 lines
11 KiB
TypeScript
313 lines
11 KiB
TypeScript
"use strict";
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import { Platform, BasePlatform, cpuStateToLongString_6502, BaseMAMEPlatform, EmuRecorder, dumpStackToString, DisasmLine } from "../baseplatform";
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import { PLATFORMS, RAM, newAddressDecoder, dumpRAM } from "../emu";
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import { hex, lpad, tobin, byte2signed } from "../util";
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import { CodeAnalyzer_vcs } from "../analysis";
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import { disassemble6502 } from "../cpu/disasm6502";
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declare var Javatari : any;
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declare var jt : any; // 6502
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const VCS_PRESETS = [
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{id:'examples/hello', chapter:4, name:'Hello 6502 and TIA'},
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{id:'examples/vsync', chapter:5, name:'Painting on the CRT', title:'Color Bars'},
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{id:'examples/playfield', chapter:6, name:'Playfield Graphics'},
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{id:'examples/sprite', chapter:7, name:'Players and Sprites'},
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{id:'examples/timing2', chapter:9, name:'Fine Positioning', title:'Fine Position'},
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{id:'examples/missiles', chapter:10, name:'Player/Missile Graphics', title:'Player/Missile'},
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{id:'examples/complexscene', chapter:15, name:'Complex Scene I'},
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{id:'examples/complexscene2', chapter:16, name:'Complex Scene II'},
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{id:'examples/scoreboard', chapter:18, name:'Scoreboard'},
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{id:'examples/collisions', chapter:19, name:'Collisions'},
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{id:'examples/bitmap', chapter:20, name:'Async Playfield: Bitmap', title:'Async PF Bitmap'},
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{id:'examples/brickgame', chapter:21, name:'Async Playfield: Bricks', title:'Async PF Bricks'},
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// {id:'examples/multisprite1', chapter:8, name:'Sprite Kernel'},
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{id:'examples/bigsprite', chapter:22, name:'A Big 48-Pixel Sprite', title:'48-Pixel Sprite'},
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{id:'examples/tinyfonts2', chapter:23, name:'Tiny Text'},
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{id:'examples/score6', chapter:24, name:'6-Digit Score'},
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{id:'examples/retrigger', chapter:26, name:'Sprite Formations'},
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// {id:'examples/tinyfonts', chapter:23, name:'Tiny Fonts, Slow'},
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{id:'examples/multisprite3', chapter:28, name:'Multisprites'},
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{id:'examples/procgen1', chapter:30, name:'Procedural Generation'},
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{id:'examples/lines', chapter:31, name:'Drawing Lines'},
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// {id:'examples/piatable', name:'Timer Table'},
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{id:'examples/musicplayer', chapter:32, name:'Music Player'},
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{id:'examples/road', chapter:33, name:'Pseudo 3D Road'},
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{id:'examples/bankswitching', chapter:35, name:'Bankswitching'},
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{id:'examples/wavetable', chapter:36, name:'Wavetable Sound'},
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{id:'examples/fracpitch', name:'Fractional Pitch'},
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{id:'examples/pal', name:'PAL Video Output'},
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// {id:'examples/testlibrary', name:'VCS Library Demo'},
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// {id:'examples/music2', name:'Pitch-Accurate Music'},
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// {id:'examples/fullgame', name:'Thru Hike: The Game', title:'Thru Hike'},
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{id:'bb/helloworld.bas', name:'Hello World (batariBASIC)'},
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{id:'bb/draw.bas', name:'Playfield Draw (batariBASIC)'},
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{id:'bb/sample.bas', name:'Sprite Test (batariBASIC)'},
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{id:'bb/FIFA1977.bas', name:'2P Soccer Game (batariBASIC)'},
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{id:'bb/duck_chase.bas', name:'Duck Chase (batariBASIC)'},
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{id:'bb/rblast106.bas', name:'Road Blasters (batariBASIC)'},
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];
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Javatari.AUTO_START = false;
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Javatari.SHOW_ERRORS = false;
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Javatari.CARTRIDGE_CHANGE_DISABLED = true;
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Javatari.DEBUG_SCANLINE_OVERFLOW = false; // TODO: make a switch
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Javatari.AUDIO_BUFFER_SIZE = 256;
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class VCSPlatform extends BasePlatform {
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lastDebugState;
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getPresets() { return VCS_PRESETS; }
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start() {
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var self = this;
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$("#javatari-div").show();
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Javatari.start();
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// intercept clockPulse function
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Javatari.room.console.oldClockPulse = Javatari.room.console.clockPulse;
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Javatari.room.console.clockPulse = function() {
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self.updateRecorder();
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this.oldClockPulse();
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}
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}
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loadROM(title, data) {
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if (data.length == 0 || ((data.length & 0x3ff) != 0))
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throw Error("Invalid ROM length: " + data.length);
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// TODO: parse Log messages from Javatari?
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var wasrunning = this.isRunning();
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Javatari.loadROM(title, data);
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if (!this.isRunning()) throw Error("Could not load ROM");
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if (!wasrunning) this.pause();
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}
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getOpcodeMetadata(opcode, offset) {
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return Javatari.getOpcodeMetadata(opcode, offset);
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}
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getRasterPosition() {
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var clkfs = Javatari.room.console.getClocksFromFrameStart() - 1;
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var row = Math.floor(clkfs/76);
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var col = clkfs - row*76;
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var xpos = col*3-68;
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var ypos = row-39;
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return {x:xpos, y:ypos};
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}
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// TODO: Clock changes this on event, so it may not be current
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isRunning() {
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//console.log(Javatari.room.console.isRunning(), Javatari.room.console.isPowerOn);
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return Javatari.room && Javatari.room.console.isRunning();
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}
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pause() {
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Javatari.room.console.pause();
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Javatari.room.speaker.mute();
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}
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resume() {
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Javatari.room.console.go();
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Javatari.room.speaker.play();
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}
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advance() {
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Javatari.room.console.clockPulse();
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}
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// for unit test
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nextFrame() {
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Javatari.room.console.clockPulse();
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}
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step() { Javatari.room.console.debugSingleStepCPUClock(); }
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stepBack() { Javatari.room.console.debugStepBackInstruction(); }
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runEval(evalfunc) { Javatari.room.console.debugEval(evalfunc); }
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setupDebug(callback) {
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Javatari.room.console.onBreakpointHit = (state) => {
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state.c.PC = (state.c.PC - 1) & 0xffff;
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this.fixState(state);
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Javatari.room.console.pause();
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Javatari.room.speaker.mute();
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this.lastDebugState = state;
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callback(state);
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}
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Javatari.room.speaker.mute();
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}
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clearDebug() {
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this.lastDebugState = null;
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Javatari.room.console.disableDebug();
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Javatari.room.console.onBreakpointHit = null;
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if (this.isRunning()) Javatari.room.speaker.play();
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}
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reset() {
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Javatari.room.console.powerOff();
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Javatari.room.console.resetDebug();
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Javatari.room.console.powerOn();
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Javatari.room.speaker.play();
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}
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getOriginPC() {
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return (this.readAddress(0xfffc) | (this.readAddress(0xfffd) << 8)) & 0xffff;
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}
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newCodeAnalyzer() {
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return new CodeAnalyzer_vcs(this);
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}
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saveState() {
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var state = Javatari.room.console.saveState();
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this.fixState(state);
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return state;
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}
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fixState(state) {
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var ofs = state.ca.bo || 0;
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if (state.ca.fo && (state.c.PC & 0xfff) >= 2048)
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ofs = state.ca.fo; // 3E/3F fixed-slice formats
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state.c.EPC = state.c.PC + ofs; // ofs = effective PC for ROM
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}
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loadState(state) {
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return Javatari.room.console.loadState(state);
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}
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getCPUState() {
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return Javatari.room.console.saveState().c;
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}
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saveControlsState() {
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return Javatari.room.console.saveControlsState();
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}
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loadControlsState(state) {
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Javatari.room.console.loadControlsState(state);
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}
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readAddress(addr) {
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// TODO: shouldn't have to do this when debugging
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if (this.lastDebugState && addr >= 0x80 && addr < 0x100)
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return this.getRAMForState(this.lastDebugState)[addr & 0x7f];
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else
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return Javatari.room.console.readAddress(addr);
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}
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writeAddress(addr,value) {
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Javatari.room.console.writeAddress(addr,value);
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}
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runUntilReturn() {
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var depth = 1;
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this.runEval( (c) => {
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if (depth <= 0 && c.T == 0)
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return true;
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if (c.o == 0x20)
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depth++;
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else if (c.o == 0x60 || c.o == 0x40)
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--depth;
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return false;
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});
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}
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runToVsync() {
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this.advance();
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this.runEval( (c) => { return true; } );
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}
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cpuStateToLongString(c) {
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return cpuStateToLongString_6502(c);
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}
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getRAMForState(state) {
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return jt.Util.byteStringToUInt8Array(atob(state.r.b));
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}
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ramStateToLongString(state) {
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var ram = this.getRAMForState(state);
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return "\n" + dumpRAM(ram, 0x80, 0x80);
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}
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getToolForFilename(fn) {
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if (fn.endsWith(".bb") || fn.endsWith(".bas")) return "bataribasic";
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return "dasm";
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}
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getDefaultExtension() { return ".a"; };
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getDebugCategories() {
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return ['CPU','Stack','PIA','TIA'];
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}
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getDebugInfo(category, state) {
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switch (category) {
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case 'CPU': return this.cpuStateToLongString(state.c) + this.bankSwitchStateToString(state);
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case 'Stack': return dumpStackToString(this, this.getRAMForState(state), 0x100, 0x1ff, 0x100+state.c.SP, 0x20);
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case 'PIA': return this.ramStateToLongString(state) + "\n" + this.piaStateToLongString(state.p);
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case 'TIA': return this.tiaStateToLongString(state.t);
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}
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}
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bankSwitchStateToString(state) {
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return (state.ca.bo !== undefined ? ("BankOffset "+hex(state.ca.bo,4)+"\n"):"");
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}
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piaStateToLongString(p) {
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return "Timer " + p.t + "/" + p.c + "\nINTIM $" + hex(p.IT,2) + " (" + p.IT + ")\nINSTAT $" + hex(p.IS,2) + "\n";
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}
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tiaStateToLongString(t) {
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var pos = this.getRasterPosition();
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var s = '';
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s += "H" + lpad(pos.x.toString(),5) + " V" + lpad(pos.y.toString(),5) + " ";
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s += (t.vs?"VSYNC ":"- ") + (t.vb?"VBLANK ":"- ") + "\n";
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s += "\n";
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s += "Playfield " + t.f + "\n";
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s += " " + (t.fr?"REFLECT ":"- ") + (t.fs?"SCOREMODE ":"- ") + (t.ft?"PRIORITY ":"- ") + "\n";
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for (var j=0; j<2; j++) {
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var i = "p"+j;
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s += "Player"+j+ lpad(tobin(t[i]),11) + lpad(tobin(t[i+'d']),11) + "\n";
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}
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s += "\n";
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// TODO? s += " Color {color:0x" + hex(t.fc) + "} {color:0x" + hex(t.fb) + "}\n";
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s += " Count Scan Speed\n";
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for (var j=0; j<2; j++) {
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var i = "p"+j;
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s += "Player"+j+ lpad(t[i+'co'],8) + lpad(nonegstr(t[i+'sc']),5) + lpad(t[i+'ss'],6);
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s += " " + (t[i+'rr']?"RESET":"") + " " + (t[i+'v']?"DELAY":"") + " " + (t[i+'cc']?"CLOSECOPY":"") + " " + (t[i+'mc']?"MEDCOPY":"") + " " + (t[i+'wc']?"WIDECOPY":"") + " " + (t[i+'r']?"REFLECT":"") + "\n";
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}
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for (var j=0; j<2; j++) {
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var i = "m"+j;
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s += "Missile"+j+ lpad(t[i+'co'],7) + lpad(nonegstr(t[i+'sc']),5) + lpad(t[i+'ss'],6);
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s += " " + (t[i+'rr']?"RESET":"") + " " + (t[i+'r']?"RESET2PLAYER":"") + "\n";
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}
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s += "Ball"+ lpad(t['bco'],11) + lpad(nonegstr(t['bsc']),5) + lpad(t['bss'],6) + "\n";
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return s;
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}
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disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
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return disassemble6502(pc, read(pc), read(pc+1), read(pc+2));
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}
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};
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// TODO: mixin for Base6502Platform?
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function nonegstr(n) {
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return n < 0 ? "-" : n.toString();
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}
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///////////////
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class VCSMAMEPlatform extends BaseMAMEPlatform implements Platform {
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// MCFG_SCREEN_RAW_PARAMS( MASTER_CLOCK_NTSC, 228, 26, 26 + 160 + 16, 262, 24 , 24 + 192 + 31 )
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start = function() {
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this.startModule(this.mainElement, {
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jsfile:'mamea2600.js',
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driver:'a2600',
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width:176*2,
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height:223,
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romfn:'/emulator/cart.rom',
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romsize:0x1000,
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});
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}
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loadROM = function(title, data) {
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this.loadROMFile(data);
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this.loadRegion(":cartslot:cart:rom", data);
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}
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getPresets = function() { return VCS_PRESETS; }
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getToolForFilename = function(fn) {
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return "dasm";
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}
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getDefaultExtension = function() { return ".a"; };
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getOriginPC = function() {
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return (this.readAddress(0xfffc) | (this.readAddress(0xfffd) << 8)) & 0xffff;
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}
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}
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////////////////
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PLATFORMS['vcs'] = VCSPlatform;
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PLATFORMS['vcs.mame'] = VCSMAMEPlatform;
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