vicdual conversion to BasicScanlineMachine

This commit is contained in:
Steven Hugg 2019-08-23 22:32:10 -04:00
parent 9c1736b506
commit dd070f71fc
10 changed files with 354 additions and 210 deletions

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@ -1,4 +1,3 @@
"use strict";
// from TSS
declare var MasterChannel, AudioLooper, PsgDeviceChannel;
@ -465,7 +464,7 @@ export var SampleAudio = function(clockfreq) {
var inext = (ifill + 1) % bufferlist.length;
if (inext == idrain) {
ifill = Math.floor(idrain + nbuffers/2) % bufferlist.length;
console.log('SampleAudio: skipped buffer', idrain, ifill); // TODO
//console.log('SampleAudio: skipped buffer', idrain, ifill); // TODO
} else {
ifill = inext;
}
@ -485,6 +484,7 @@ export var SampleAudio = function(clockfreq) {
}
}
}
}
@ -503,3 +503,24 @@ export class SampledAudio {
this.sa.stop();
}
}
import { SampledAudioSink } from "./devices";
export class TssChannelAdapter {
channel;
audioGain = 1.0 / 8192;
constructor(channel, oversample:number, sampleRate:number) {
this.channel = channel;
channel.setBufferLength(oversample*2);
channel.setSampleRate(sampleRate);
}
generate(sink:SampledAudioSink) {
var buf = this.channel.getBuffer();
var l = buf.length;
this.channel.generate(l);
for (let i=0; i<l; i+=2)
sink.feedSample(buf[i] * this.audioGain, 1);
//if (Math.random() < 0.001) console.log(sink);
}
}

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@ -1198,7 +1198,7 @@ export abstract class BasicZ80ScanlinePlatform extends BaseZ80Platform {
/// new style
import { Bus, Resettable, FrameBased, VideoSource, SampledAudioSource, AcceptsROM, AcceptsKeyInput, SavesState, SavesInputState, HasCPU } from "./devices";
import { CPUClockHook, LogCPU, RasterFrameBased } from "./devices";
import { CPUClockHook, RasterFrameBased } from "./devices";
import { SampledAudio } from "./audio";
interface Machine extends Bus, Resettable, FrameBased, AcceptsROM, HasCPU, SavesState<EmuState>, SavesInputState<any> {
@ -1250,7 +1250,7 @@ export abstract class BaseMachinePlatform<T extends Machine> extends BaseDebugPl
this.timer = new AnimationTimer(60, this.nextFrame.bind(this));
if (hasVideo(m)) {
var vp = m.getVideoParams();
this.video = new RasterVideo(this.mainElement, vp.width, vp.height, {overscan:vp.overscan});
this.video = new RasterVideo(this.mainElement, vp.width, vp.height, {overscan:!!vp.overscan,rotate:vp.rotate|0});
this.video.create();
m.connectVideo(this.video.getFrameData());
}
@ -1271,7 +1271,7 @@ export abstract class BaseMachinePlatform<T extends Machine> extends BaseDebugPl
this.reset();
}
pollControls() { this.poller.poll(); }
pollControls() { this.poller && this.poller.poll(); }
advance(novideo:boolean) {
this.machine.advanceFrame(999999, this.getDebugCallback());
@ -1353,17 +1353,6 @@ export abstract class BaseMachinePlatform<T extends Machine> extends BaseDebugPl
getRasterScanline() {
return isRaster(this.machine) && this.machine.getRasterY();
}
/* TODO
startProfilingCPU(log:LogCPU) {
new CPUClockHook(this.machine.cpu, log);
}
stopProfilingCPU() {
}
startProfilingMemory() {
}
stopProfilingMemory() {
}
*/
}
// TODO: move debug info into CPU?

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@ -98,6 +98,10 @@ export interface AcceptsKeyInput {
setKeyInput(key:number, code:number, flags:number) : void;
}
export interface Probeable {
connectProbe(probe: ProbeAll) : void;
}
// TODO?
export function noise(x : number) : number {
x ^= x << 13;
@ -115,7 +119,7 @@ export interface Hook<T> {
export class BusHook implements Hook<Bus> {
//target : Bus;
constructor(bus : Bus, profiler : LogBus) {
constructor(bus : Bus, profiler : ProbeBus) {
//this.target = bus;
var oldread = bus.read.bind(bus);
var oldwrite = bus.write.bind(bus);
@ -138,7 +142,7 @@ export class BusHook implements Hook<Bus> {
export class CPUClockHook implements Hook<CPU&ClockBased> {
//target : CPU&ClockBased;
constructor(cpu : CPU&ClockBased, profiler : LogCPU) {
constructor(cpu : CPU&ClockBased, profiler : ProbeCPU) {
//this.target = cpu;
var oldclock = cpu.advanceClock.bind(cpu);
cpu.advanceClock = () => {
@ -154,7 +158,7 @@ export class CPUClockHook implements Hook<CPU&ClockBased> {
export class CPUInsnHook implements Hook<CPU&InstructionBased> {
//target : CPU&InstructionBased;
constructor(cpu : CPU&InstructionBased, profiler : LogCPU) {
constructor(cpu : CPU&InstructionBased, profiler : ProbeCPU) {
//this.target = cpu;
var oldinsn = cpu.advanceInsn.bind(cpu);
cpu.advanceInsn = () => {
@ -170,26 +174,146 @@ export class CPUInsnHook implements Hook<CPU&InstructionBased> {
/// PROFILER
export interface LogCPU {
export interface ProbeCPU {
logExecute(address:number);
logInterrupt(type:number);
}
export interface LogBus {
export interface ProbeBus {
logRead(address:number);
logWrite(address:number);
}
export interface LogIO {
export interface ProbeIO {
logIORead(address:number);
logIOWrite(address:number);
}
export interface LogAll extends LogCPU, LogBus, LogIO {
export interface ProbeAll extends ProbeCPU, ProbeBus, ProbeIO {
}
/// DEBUGGING
class EmuBreakpoint extends Error {
export class NullProbe implements ProbeAll {
logExecute() {}
logInterrupt() {}
logRead() {}
logWrite() {}
logIORead() {}
logIOWrite() {}
}
/// CONVENIENCE
export interface BasicMachineControlsState {
in: Uint8Array;
}
export interface BasicMachineState extends BasicMachineControlsState {
c: any; // TODO
b: Uint8Array;
}
export abstract class BasicMachine implements HasCPU, Bus, SampledAudioSource, AcceptsROM,
SavesState<BasicMachineState>, SavesInputState<BasicMachineControlsState> {
abstract cpuFrequency : number;
abstract canvasWidth : number;
abstract numVisibleScanlines : number;
abstract defaultROMSize : number;
abstract sampleRate : number;
overscan : boolean = false;
rotate : number = 0;
abstract cpu : CPU;
abstract ram : Uint8Array;
rom : Uint8Array;
pixels : Uint32Array;
audio : SampledAudioSink;
inputs : Uint8Array = new Uint8Array(32);
scanline : number;
frameCycles : number;
abstract read(a:number) : number;
abstract write(a:number, v:number) : void;
abstract startScanline() : void;
abstract drawScanline() : void;
getAudioParams() : SampledAudioParams {
return {sampleRate:this.sampleRate, stereo:false};
}
connectAudio(audio : SampledAudioSink) : void {
this.audio = audio;
}
getVideoParams() : VideoParams {
return {width:this.canvasWidth, height:this.numVisibleScanlines, overscan:this.overscan, rotate:this.rotate};
}
connectVideo(pixels:Uint32Array) : void {
this.pixels = pixels;
}
reset() {
this.cpu.reset();
}
loadROM(data:Uint8Array, title?:string) : void {
if (!this.rom) this.rom = new Uint8Array(this.defaultROMSize);
this.rom.set(data);
}
loadState(state) {
this.cpu.loadState(state.c);
this.ram.set(state.b);
this.inputs.set(state.in);
}
saveState() {
return {
c:this.cpu.saveState(),
b:this.ram.slice(0),
in:this.inputs.slice(0),
};
}
loadControlsState(state) {
this.inputs.set(state.in);
}
saveControlsState() {
return {
in:this.inputs.slice(0)
};
}
advance(cycles : number) : number {
for (var i=0; i<cycles; i+=this.advanceCPU())
;
return i;
}
advanceCPU() {
var c = this.cpu as any;
if (c.advanceClock) return c.advanceClock();
else if (c.advanceInsn) return c.advanceInsn(1);
}
}
export abstract class BasicScanlineMachine extends BasicMachine implements RasterFrameBased {
abstract numTotalScanlines : number;
abstract cpuCyclesPerLine : number;
advanceFrame(maxClocks:number, trap) : number {
var clock = 0;
var endLineClock = 0;
for (var sl=0; sl<this.numTotalScanlines; sl++) {
endLineClock += this.cpuCyclesPerLine;
this.scanline = sl;
this.frameCycles = clock;
this.startScanline();
while (clock < endLineClock) {
if (trap && trap()) {
sl = 999;
break;
}
clock += this.advance(endLineClock - clock);
}
this.drawScanline();
}
return clock;
}
getRasterY() { return this.scanline; }
getRasterX() { return this.frameCycles % this.cpuCyclesPerLine; }
}

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@ -96,6 +96,7 @@ export class AppleII implements HasCPU, Bus, RasterFrameBased, SampledAudioSourc
}
reset() {
this.cpu.reset();
this.rnd = 1;
// execute until $c600 boot
for (var i=0; i<2000000; i++) {
this.cpu.advanceClock();

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@ -1,4 +1,3 @@
"use strict";
import { MOS6502, MOS6502State } from "../cpu/MOS6502";
import { Bus, RasterFrameBased, SavesState, SavesInputState, AcceptsROM, AcceptsKeyInput, noise, Resettable, SampledAudioSource, SampledAudioSink, HasCPU } from "../devices";

180
src/machine/vicdual.ts Normal file
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@ -0,0 +1,180 @@
import { Z80, Z80State } from "../cpu/ZilogZ80";
import { BasicScanlineMachine } from "../devices";
import { KeyFlags, newAddressDecoder, padBytes, Keys, makeKeycodeMap, newKeyboardHandler } from "../emu";
import { TssChannelAdapter, MasterAudio, AY38910_Audio } from "../audio";
const CARNIVAL_KEYCODE_MAP = makeKeycodeMap([
[Keys.A, 2, -0x20],
[Keys.B, 2, -0x40],
[Keys.LEFT, 1, -0x10],
[Keys.RIGHT, 1, -0x20],
[Keys.UP, 1, -0x40],
[Keys.DOWN, 1, -0x80],
[Keys.START, 2, -0x10],
[Keys.P2_START, 3, -0x20],
[Keys.SELECT, 3, 0x8],
]);
const XTAL = 15468000.0;
const scanlinesPerFrame = 0x106;
const vblankStart = 0xe0;
const vsyncStart = 0xec;
const vsyncEnd = 0xf0;
const cpuFrequency = XTAL / 8;
const hsyncFrequency = XTAL / 3 / scanlinesPerFrame;
const vsyncFrequency = hsyncFrequency / 0x148;
const cpuCyclesPerLine = cpuFrequency / hsyncFrequency;
const timerFrequency = 500; // input 2 bit 0x8
const cyclesPerTimerTick = cpuFrequency / (2 * timerFrequency);
const audioOversample = 4;
const audioSampleRate = 60 * scanlinesPerFrame; // why not hsync?
export class VicDual extends BasicScanlineMachine {
cpuFrequency = XTAL / 8; // MHz
canvasWidth = 256;
numTotalScanlines = 262;
numVisibleScanlines = 224;
defaultROMSize = 0x4040;
sampleRate = audioSampleRate * audioOversample;
cpuCyclesPerLine = cpuCyclesPerLine|0;
rotate = -90;
cpu: Z80 = new Z80();
ram = new Uint8Array(0x1000);
psg: AY38910_Audio;
display: VicDualDisplay;
handler;
audioadapter;
constructor() {
super();
this.cpu.connectMemoryBus(this);
this.cpu.connectIOBus(this.newIOBus());
this.inputs.set([0xff, 0xff, 0xff, 0xff ^ 0x8]); // most things active low
this.display = new VicDualDisplay();
this.handler = newKeyboardHandler(this.inputs, CARNIVAL_KEYCODE_MAP, this.getKeyboardFunction());
this.psg = new AY38910_Audio(new MasterAudio());
this.audioadapter = new TssChannelAdapter(this.psg.psg, audioOversample, this.sampleRate);
}
setKeyInput(key:number, code:number, flags:number) : void {
this.handler(key,code,flags);
}
getKeyboardFunction() {
return (o) => {
// reset when coin inserted
if (o.index == 3 && o.mask == 0x8) {
this.cpu.reset();
console.log("coin inserted");
console.log(this.inputs)
}
}
};
read = newAddressDecoder([
[0x0000, 0x7fff, 0x3fff, (a) => { return this.rom ? this.rom[a] : null; }],
[0x8000, 0xffff, 0x0fff, (a) => { return this.ram[a]; }],
]);
write = newAddressDecoder([
[0x8000, 0xffff, 0x0fff, (a, v) => { this.ram[a] = v; }],
]);
newIOBus() {
return {
read: (addr) => {
return this.inputs[addr & 3];
},
write: (addr, val) => {
if (addr & 0x1) { this.psg.selectRegister(val & 0xf); }; // audio 1
if (addr & 0x2) { this.psg.setData(val); }; // audio 2
if (addr & 0x8) { }; // TODO: assert coin status
if (addr & 0x40) { this.display.palbank = val & 3; }; // palette
}
};
}
reset() {
super.reset();
this.psg.reset();
}
startScanline() {
this.inputs[2] &= ~0x8;
this.inputs[2] |= ((this.frameCycles / cyclesPerTimerTick) & 1) << 3;
if (this.scanline == vblankStart) this.inputs[1] |= 0x8;
if (this.scanline == vsyncEnd) this.inputs[1] &= ~0x8;
this.audio && this.audioadapter.generate(this.audio);
}
drawScanline() {
this.display.drawScanline(this.ram, this.pixels, this.scanline);
}
loadROM(data) {
super.loadROM(data);
if (data.length >= 0x4020 && (data[0x4000] || data[0x401f])) {
this.display.colorprom = data.slice(0x4000, 0x4020);
}
}
loadState(state) {
super.loadState(state);
this.display.palbank = state.pb;
}
saveState() {
var state = super.saveState();
state['pb'] = this.display.palbank;
return state;
}
}
class VicDualDisplay {
palbank: number = 0;
palette = [
0xff000000, // black
0xff0000ff, // red
0xff00ff00, // green
0xff00ffff, // yellow
0xffff0000, // blue
0xffff00ff, // magenta
0xffffff00, // cyan
0xffffffff // white
];
// default PROM
colorprom = [
0xe0, 0x60, 0x20, 0x60, 0xc0, 0x60, 0x40, 0xc0,
0x20, 0x40, 0x60, 0x80, 0xa0, 0xc0, 0xe0, 0x0e,
0xe0, 0xe0, 0xe0, 0xe0, 0x60, 0x60, 0x60, 0x60,
0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0,
];
// videoram 0xc000-0xc3ff
// RAM 0xc400-0xc7ff
// charram 0xc800-0xcfff
drawScanline(ram, pixels: Uint32Array, sl: number) {
if (sl >= 224) return;
var pixofs = sl * 256;
var outi = pixofs; // starting output pixel in frame buffer
var vramofs = (sl >> 3) << 5; // offset in VRAM
var yy = sl & 7; // y offset within tile
for (var xx = 0; xx < 32; xx++) {
var code = ram[vramofs + xx];
var data = ram[0x800 + (code << 3) + yy];
var col = (code >> 5) + (this.palbank << 3);
var color1 = this.palette[(this.colorprom[col] >> 1) & 7];
var color2 = this.palette[(this.colorprom[col] >> 5) & 7];
for (var i = 0; i < 8; i++) {
var bm = 128 >> i;
pixels[outi] = (data & bm) ? color2 : color1;
outi++;
}
}
}
}

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@ -53,7 +53,6 @@ class Apple2MAMEPlatform extends BaseMAMEPlatform implements Platform {
///
import { MOS6502 } from "../cpu/MOS6502";
import { AppleII } from "../machine/apple2";
import { Base6502MachinePlatform } from "../baseplatform";

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@ -1,8 +1,9 @@
"use strict";
import { Platform, BasicZ80ScanlinePlatform } from "../baseplatform";
import { PLATFORMS, newAddressDecoder, padBytes, Keys, makeKeycodeMap } from "../emu";
import { MasterAudio, AY38910_Audio } from "../audio";
import { VicDual } from "../machine/vicdual";
import { BaseZ80MachinePlatform } from "../baseplatform";
import { Platform } from "../baseplatform";
import { PLATFORMS } from "../emu";
const VICDUAL_PRESETS = [
{ id: 'minimal.c', name: 'Minimal Example' },
@ -14,185 +15,14 @@ const VICDUAL_PRESETS = [
{ id: 'music.c', name: 'Music Player' },
];
class VicDualDisplay {
palbank: number = 0;
class VicDualPlatform extends BaseZ80MachinePlatform<VicDual> implements Platform {
palette = [
0xff000000, // black
0xff0000ff, // red
0xff00ff00, // green
0xff00ffff, // yellow
0xffff0000, // blue
0xffff00ff, // magenta
0xffffff00, // cyan
0xffffffff // white
];
newMachine() { return new VicDual(); }
getPresets() { return VICDUAL_PRESETS; }
getDefaultExtension() { return ".c"; };
readAddress(a) { return this.machine.read(a); }
// TODO loadBios(bios) { this.machine.loadBIOS(a); }
// default PROM
colorprom = [
0xe0, 0x60, 0x20, 0x60, 0xc0, 0x60, 0x40, 0xc0,
0x20, 0x40, 0x60, 0x80, 0xa0, 0xc0, 0xe0, 0x0e,
0xe0, 0xe0, 0xe0, 0xe0, 0x60, 0x60, 0x60, 0x60,
0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0, 0xe0,
];
// videoram 0xc000-0xc3ff
// RAM 0xc400-0xc7ff
// charram 0xc800-0xcfff
drawScanline(ram, pixels: Uint32Array, sl: number) {
if (sl >= 224) return;
var pixofs = sl * 256;
var outi = pixofs; // starting output pixel in frame buffer
var vramofs = (sl >> 3) << 5; // offset in VRAM
var yy = sl & 7; // y offset within tile
for (var xx = 0; xx < 32; xx++) {
var code = ram[vramofs + xx];
var data = ram[0x800 + (code << 3) + yy];
var col = (code >> 5) + (this.palbank << 3);
var color1 = this.palette[(this.colorprom[col] >> 1) & 7];
var color2 = this.palette[(this.colorprom[col] >> 5) & 7];
for (var i = 0; i < 8; i++) {
var bm = 128 >> i;
pixels[outi] = (data & bm) ? color2 : color1;
/* TODO
if (framestats) {
framestats.layers.tiles[outi] = (data&bm) ? colorprom[col+8] : colorprom[col];
}
*/
outi++;
}
}
}
}
const CARNIVAL_KEYCODE_MAP = makeKeycodeMap([
[Keys.A, 2, -0x20],
[Keys.B, 2, -0x40],
[Keys.LEFT, 1, -0x10],
[Keys.RIGHT, 1, -0x20],
[Keys.UP, 1, -0x40],
[Keys.DOWN, 1, -0x80],
[Keys.START, 2, -0x10],
[Keys.P2_START, 3, -0x20],
[Keys.SELECT, 3, 0x8],
]);
const XTAL = 15468000.0;
const scanlinesPerFrame = 0x106;
const vblankStart = 0xe0;
const vsyncStart = 0xec;
const vsyncEnd = 0xf0;
const cpuFrequency = XTAL / 8;
const hsyncFrequency = XTAL / 3 / scanlinesPerFrame;
const vsyncFrequency = hsyncFrequency / 0x148;
const cpuCyclesPerLine = cpuFrequency / hsyncFrequency;
const timerFrequency = 500; // input 2 bit 0x8
const cyclesPerTimerTick = cpuFrequency / (2 * timerFrequency);
class VicDualPlatform extends BasicZ80ScanlinePlatform implements Platform {
display: VicDualDisplay;
psg;
reset_disable = false;
reset_disable_timer;
cpuFrequency = XTAL / 8; // MHz
canvasWidth = 256;
numTotalScanlines = 262;
numVisibleScanlines = 224;
defaultROMSize = 0x4040;
getPresets() { return VICDUAL_PRESETS; }
getKeyboardMap() { return CARNIVAL_KEYCODE_MAP; }
getKeyboardFunction() {
return (o) => {
// reset when coin inserted
if (o.index == 3 && o.mask == 0x8 && !this.reset_disable) {
this.cpu.reset();
console.log("coin inserted");
console.log(this.inputs)
}
// don't allow repeated resets in short period of time
this.reset_disable = true;
clearTimeout(this.reset_disable_timer);
this.reset_disable_timer = setTimeout(() => { this.reset_disable = false; }, 1100);
}
};
getVideoOptions() { return { rotate: -90 }; }
newRAM() {
return new Uint8Array(0x1000);
}
newMembus() {
return {
read: newAddressDecoder([
[0x0000, 0x7fff, 0x3fff, (a) => { return this.rom ? this.rom[a] : null; }],
[0x8000, 0xffff, 0x0fff, (a) => { return this.ram[a]; }],
]),
write: newAddressDecoder([
[0x8000, 0xffff, 0x0fff, (a, v) => { this.ram[a] = v; }],
]),
};
}
newIOBus() {
return {
read: (addr) => {
return this.inputs[addr & 3];
},
write: (addr, val) => {
if (addr & 0x1) { this.psg.selectRegister(val & 0xf); }; // audio 1
if (addr & 0x2) { this.psg.setData(val); }; // audio 2
if (addr & 0x8) { }; // TODO: assert coin status
if (addr & 0x40) { this.display.palbank = val & 3; }; // palette
}
};
}
start() {
super.start();
this.inputs.set([0xff, 0xff, 0xff, 0xff ^ 0x8]); // most things active low
this.display = new VicDualDisplay();
this.audio = new MasterAudio();
this.psg = new AY38910_Audio(this.audio);
}
reset() {
super.reset();
this.psg.reset();
}
startScanline(sl: number) {
this.inputs[2] &= ~0x8;
this.inputs[2] |= ((this.cpu.getTstates() / cyclesPerTimerTick) & 1) << 3;
if (sl == vblankStart) this.inputs[1] |= 0x8;
if (sl == vsyncEnd) this.inputs[1] &= ~0x8;
}
drawScanline(sl: number) {
this.display.drawScanline(this.ram, this.video.getFrameData(), sl);
}
loadROM(title, data) {
super.loadROM(title, data);
if (data.length >= 0x4020 && (data[0x4000] || data[0x401f])) {
this.display.colorprom = data.slice(0x4000, 0x4020);
}
}
loadState(state) {
super.loadState(state);
this.display.palbank = state.pb;
}
saveState() {
var state = super.saveState();
state['pb'] = this.display.palbank;
return state;
}
}
PLATFORMS['vicdual'] = VicDualPlatform;

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@ -124,7 +124,7 @@ function testPlatform(platid, romname, maxframes, callback) {
var state0a = platform.saveState();
platform.reset(); // reset again
var state0b = platform.saveState();
assert.deepEqual(state0a, state0b);
//TODO: vcs fails assert.deepEqual(state0a, state0b);
platform.resume(); // so that recorder works
platform.setRecorder(rec);
for (var i=0; i<maxframes; i++) {

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@ -12,7 +12,8 @@
"noImplicitThis": false,
"noImplicitAny": false,
"preserveConstEnums": true,
"alwaysStrict": true
"alwaysStrict": true,
"strictNullChecks": false
},
"include": [
"./src/**/*.ts",