1666 lines
52 KiB
TypeScript
1666 lines
52 KiB
TypeScript
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import { RAM, RasterVideo, KeyFlags, dumpRAM, AnimationTimer, setKeyboardFromMap, padBytes, ControllerPoller, EmuHalt } from "./emu";
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import { hex, printFlags, invertMap, getBasePlatform, byteToASCII } from "./util";
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import { CodeAnalyzer } from "./analysis";
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import { Segment, FileData } from "./workertypes";
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import { disassemble6502 } from "./cpu/disasm6502";
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import { disassembleZ80 } from "./cpu/disasmz80";
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import { Z80 } from "./cpu/ZilogZ80";
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declare var jt, CPU6809;
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export interface OpcodeMetadata {
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minCycles: number;
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maxCycles: number;
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insnlength: number;
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opcode: number;
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}
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export interface CpuState {
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PC:number;
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EPC?:number; // effective PC (for bankswitching)
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o?:number;/*opcode*/
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SP?:number
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/*
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A:number, X:number, Y:number, SP:number, R:boolean,
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N,V,D,Z,C:boolean*/
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};
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export interface EmuState {
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c?:CpuState, // CPU state
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b?:Uint8Array|number[], // RAM (TODO: not for vcs, support Uint8Array)
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ram?:Uint8Array,
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o?:{}, // verilog
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};
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export interface EmuControlsState {
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}
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export type DisasmLine = {
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line:string,
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nbytes:number,
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isaddr:boolean
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};
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export type SymbolMap = {[ident:string]:number};
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export type AddrSymbolMap = {[address:number]:string};
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export class DebugSymbols {
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symbolmap : SymbolMap; // symbol -> address
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addr2symbol : AddrSymbolMap; // address -> symbol
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debuginfo : {}; // extra platform-specific debug info
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constructor(symbolmap : SymbolMap, debuginfo : {}) {
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this.symbolmap = symbolmap;
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this.debuginfo = debuginfo;
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this.addr2symbol = invertMap(symbolmap);
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//// TODO: shouldn't be necc.
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if (!this.addr2symbol[0x0]) this.addr2symbol[0x0] = '$00'; // needed for ...
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this.addr2symbol[0x10000] = '__END__'; // ... dump memory to work
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}
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}
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type MemoryMapType = "main" | "vram";
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type MemoryMap = { [type:string] : Segment[] };
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export function isDebuggable(arg:any): arg is Debuggable {
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return typeof arg.getDebugCategories === 'function';
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}
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export interface Debuggable {
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getDebugCategories?() : string[];
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getDebugInfo?(category:string, state:EmuState) : string;
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}
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export interface Platform {
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start() : void | Promise<void>;
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reset() : void;
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isRunning() : boolean;
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getToolForFilename(s:string) : string;
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getDefaultExtension() : string;
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getPresets?() : Preset[];
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pause() : void;
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resume() : void;
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loadROM(title:string, rom:any); // TODO: Uint8Array
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loadBIOS?(title:string, rom:Uint8Array);
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getROMExtension?(rom:FileData) : string;
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loadState?(state : EmuState) : void;
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saveState?() : EmuState;
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loadControlsState?(state : EmuControlsState) : void;
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saveControlsState?() : EmuControlsState;
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inspect?(ident:string) : string;
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disassemble?(addr:number, readfn:(addr:number)=>number) : DisasmLine;
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readAddress?(addr:number) : number;
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readVRAMAddress?(addr:number) : number;
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setFrameRate?(fps:number) : void;
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getFrameRate?() : number;
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setupDebug?(callback : BreakpointCallback) : void;
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clearDebug?() : void;
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step?() : void;
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runToVsync?() : void;
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runToPC?(pc:number) : void;
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runUntilReturn?() : void;
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stepBack?() : void;
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runEval?(evalfunc : DebugEvalCondition) : void;
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runToFrameClock?(clock : number) : void;
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stepOver?() : void;
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restartAtPC?(pc:number) : boolean;
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getOpcodeMetadata?(opcode:number, offset:number) : OpcodeMetadata; //TODO
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getSP?() : number;
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getPC?() : number;
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getOriginPC?() : number;
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newCodeAnalyzer?() : CodeAnalyzer;
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getPlatformName?() : string;
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getMemoryMap?() : MemoryMap;
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setRecorder?(recorder : EmuRecorder) : void;
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advance?(novideo? : boolean) : number;
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advanceFrameClock?(trap:DebugCondition, step:number) : number;
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showHelp?(tool:string, ident?:string) : void;
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resize?() : void;
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getRasterScanline?() : number;
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setBreakpoint?(id : string, cond : DebugCondition);
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clearBreakpoint?(id : string);
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hasBreakpoint?(id : string) : boolean;
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getCPUState?() : CpuState;
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debugSymbols? : DebugSymbols;
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getDebugTree?() : {};
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startProbing?() : ProbeRecorder;
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stopProbing?() : void;
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isBlocked?() : boolean; // is blocked, halted, or waiting for input?
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readFile?(path: string) : FileData;
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writeFile?(path: string, data: FileData) : boolean;
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getDownloadFile?() : {extension:string, blob:Blob};
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}
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export interface Preset {
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id : string;
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name : string;
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chapter? : number;
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title? : string;
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}
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export interface MemoryBus {
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read : (address:number) => number;
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write : (address:number, value:number) => void;
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contend?: (address:number, cycles:number) => number;
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isContended?: (address:number) => boolean;
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}
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export type DebugCondition = () => boolean;
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export type DebugEvalCondition = (c:CpuState) => boolean;
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export type BreakpointCallback = (s:EmuState, msg?:string) => void;
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// for composite breakpoints w/ single debug function
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export class BreakpointList {
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id2bp : {[id:string] : Breakpoint} = {};
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getDebugCondition() : DebugCondition {
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if (Object.keys(this.id2bp).length == 0) {
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return null; // no breakpoints
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} else {
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// evaluate all breakpoints
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return () => {
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var result = false;
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for (var id in this.id2bp)
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if (this.id2bp[id].cond())
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result = true;
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return result;
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};
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}
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}
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}
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export interface Breakpoint {
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cond: DebugCondition;
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};
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export interface EmuRecorder {
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frameRequested() : boolean;
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recordFrame(state : EmuState);
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}
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/////
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export abstract class BasePlatform {
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recorder : EmuRecorder = null;
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debugSymbols : DebugSymbols;
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internalFiles : {[path:string] : FileData} = {};
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abstract loadState(state : EmuState) : void;
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abstract saveState() : EmuState;
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abstract pause() : void;
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abstract resume() : void;
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abstract advance(novideo? : boolean) : number;
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setRecorder(recorder : EmuRecorder) : void {
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this.recorder = recorder;
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}
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updateRecorder() {
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// are we recording and do we need to save a frame?
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if (this.recorder && (<Platform><any>this).isRunning() && this.recorder.frameRequested()) {
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this.recorder.recordFrame(this.saveState());
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}
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}
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inspect(sym: string) : string {
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return inspectSymbol((this as any) as Platform, sym);
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}
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getDebugTree() : {} {
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return this.saveState();
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}
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readFile(path: string) : FileData {
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return this.internalFiles[path];
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}
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writeFile(path: string, data: FileData) : boolean {
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this.internalFiles[path] = data;
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return true;
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}
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}
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export abstract class BaseDebugPlatform extends BasePlatform {
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onBreakpointHit : BreakpointCallback;
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debugCallback : DebugCondition;
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debugSavedState : EmuState = null;
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debugBreakState : EmuState = null;
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debugTargetClock : number = 0;
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debugClock : number = 0;
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breakpoints : BreakpointList = new BreakpointList();
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frameCount : number = 0;
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abstract getCPUState() : CpuState;
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setBreakpoint(id : string, cond : DebugCondition) {
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if (cond) {
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this.breakpoints.id2bp[id] = {cond:cond};
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this.restartDebugging();
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} else {
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this.clearBreakpoint(id);
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}
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}
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clearBreakpoint(id : string) {
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delete this.breakpoints.id2bp[id];
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}
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hasBreakpoint(id : string) {
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return this.breakpoints.id2bp[id] != null;
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}
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getDebugCallback() : DebugCondition {
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return this.breakpoints.getDebugCondition();
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}
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setupDebug(callback : BreakpointCallback) : void {
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this.onBreakpointHit = callback;
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}
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clearDebug() {
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this.debugSavedState = null;
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this.debugBreakState = null;
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this.debugTargetClock = -1;
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this.debugClock = 0;
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this.onBreakpointHit = null;
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this.clearBreakpoint('debug');
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this.frameCount = 0;
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}
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setDebugCondition(debugCond : DebugCondition) {
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this.setBreakpoint('debug', debugCond);
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}
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restartDebugging() {
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if (this.debugSavedState) {
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this.loadState(this.debugSavedState);
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} else {
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this.debugSavedState = this.saveState();
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}
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this.debugClock = 0;
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this.debugCallback = this.getDebugCallback();
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this.debugBreakState = null;
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this.resume();
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}
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preFrame() {
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// save state before frame, to record any inputs that happened pre-frame
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if (this.debugCallback && !this.debugBreakState) {
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// save state every frame and rewind debug clocks
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this.debugSavedState = this.saveState();
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this.debugTargetClock -= this.debugClock;
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this.debugClock = 0;
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}
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}
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postFrame() {
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// reload debug state at end of frame after breakpoint
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if (this.debugCallback && this.debugBreakState) {
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this.loadState(this.debugBreakState);
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}
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this.frameCount++;
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}
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pollControls() {
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}
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nextFrame(novideo : boolean) : number {
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this.pollControls();
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this.updateRecorder();
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this.preFrame();
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var steps = this.advance(novideo);
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this.postFrame();
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return steps;
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}
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// default debugging
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abstract getSP() : number;
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abstract getPC() : number;
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abstract isStable() : boolean;
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evalDebugCondition() {
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if (this.debugCallback && !this.debugBreakState) {
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this.debugCallback();
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}
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}
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wasBreakpointHit() : boolean {
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return this.debugBreakState != null;
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}
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breakpointHit(targetClock : number, reason? : string) {
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console.log(this.debugTargetClock, targetClock, this.debugClock, this.isStable());
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this.debugTargetClock = targetClock;
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this.debugBreakState = this.saveState();
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console.log("Breakpoint at clk", this.debugClock, "PC", this.debugBreakState.c.PC.toString(16));
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this.pause();
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if (this.onBreakpointHit) {
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this.onBreakpointHit(this.debugBreakState, reason);
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}
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}
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haltAndCatchFire(reason : string) {
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this.breakpointHit(this.debugClock, reason);
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}
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runEval(evalfunc : DebugEvalCondition) {
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this.setDebugCondition( () => {
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if (++this.debugClock >= this.debugTargetClock && this.isStable()) {
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var cpuState = this.getCPUState();
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if (evalfunc(cpuState)) {
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this.breakpointHit(this.debugClock);
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return true;
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} else {
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return false;
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}
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}
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});
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}
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runToPC(pc: number) {
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this.debugTargetClock++;
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this.runEval((c) => {
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return c.PC == pc;
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});
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}
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runUntilReturn() {
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var SP0 = this.getSP();
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this.runEval( (c:CpuState) : boolean => {
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return c.SP > SP0; // TODO: check for RTS/RET opcode
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});
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}
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runToFrameClock(clock : number) : void {
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this.restartDebugging();
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this.debugTargetClock = clock;
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this.runEval(() : boolean => { return true; });
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}
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step() {
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this.runToFrameClock(this.debugClock+1);
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}
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stepBack() {
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var prevState;
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var prevClock;
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var clock0 = this.debugTargetClock;
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this.restartDebugging();
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this.debugTargetClock = clock0 - 25; // TODO: depends on CPU
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this.runEval( (c:CpuState) : boolean => {
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if (this.debugClock < clock0) {
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prevState = this.saveState();
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prevClock = this.debugClock;
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return false;
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} else {
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if (prevState) {
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this.loadState(prevState);
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this.debugClock = prevClock;
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}
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return true;
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}
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});
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}
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runToVsync() {
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this.restartDebugging();
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var frame0 = this.frameCount;
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this.runEval( () : boolean => {
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return this.frameCount > frame0;
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});
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}
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}
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export function inspectSymbol(platform : Platform, sym : string) : string {
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if (!platform.debugSymbols) return;
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var symmap = platform.debugSymbols.symbolmap;
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var addr2sym = platform.debugSymbols.addr2symbol;
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if (!symmap || !platform.readAddress) return null;
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var addr = symmap["_"+sym] || symmap[sym]; // look for C or asm symbol
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if (!(typeof addr == 'number')) return null;
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var b = platform.readAddress(addr);
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// don't show 2 bytes if there's a symbol at the next address
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if (addr2sym && addr2sym[addr+1] != null) {
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return "$"+hex(addr,4) + " = $"+hex(b,2)+" ("+b+" decimal)"; // unsigned
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} else {
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let b2 = platform.readAddress(addr+1);
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let w = b | (b2<<8);
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return "$"+hex(addr,4) + " = $"+hex(b,2)+" $"+hex(b2,2)+" ("+((w<<16)>>16)+" decimal)"; // signed
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}
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}
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////// 6502
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export function getToolForFilename_6502(fn:string) : string {
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if (fn.endsWith(".pla")) return "plasm";
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if (fn.endsWith(".c")) return "cc65";
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if (fn.endsWith(".h")) return "cc65";
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if (fn.endsWith(".s")) return "ca65";
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if (fn.endsWith(".ca65")) return "ca65";
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if (fn.endsWith(".dasm")) return "dasm";
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if (fn.endsWith(".acme")) return "acme";
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if (fn.endsWith(".wiz")) return "wiz";
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return "dasm"; // .a
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}
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// TODO: can merge w/ Z80?
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export abstract class Base6502Platform extends BaseDebugPlatform {
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// some platforms store their PC one byte before or after the first opcode
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// so we correct when saving and loading from state
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debugPCDelta = -1;
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fixPC(c) { c.PC = (c.PC + this.debugPCDelta) & 0xffff; return c; }
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unfixPC(c) { c.PC = (c.PC - this.debugPCDelta) & 0xffff; return c;}
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getSP() { return this.getCPUState().SP };
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getPC() { return this.getCPUState().PC };
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isStable() { return !this.getCPUState()['T']; }
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abstract readAddress(addr:number) : number;
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newCPU(membus : MemoryBus) {
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var cpu = new jt.M6502();
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cpu.connectBus(membus);
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return cpu;
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}
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getOpcodeMetadata(opcode, offset) {
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return getOpcodeMetadata_6502(opcode, offset);
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}
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getOriginPC() : number {
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return (this.readAddress(0xfffc) | (this.readAddress(0xfffd) << 8)) & 0xffff;
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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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getToolForFilename = getToolForFilename_6502;
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getDefaultExtension() { return ".a"; };
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getDebugCategories() {
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return ['CPU','ZPRAM','Stack'];
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}
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getDebugInfo(category:string, state:EmuState) : string {
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switch (category) {
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case 'CPU': return cpuStateToLongString_6502(state.c);
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case 'ZPRAM': return dumpRAM(state.b||state.ram, 0x0, 0x100);
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case 'Stack': return dumpStackToString(<Platform><any>this, state.b||state.ram, 0x100, 0x1ff, 0x100+state.c.SP, 0x20);
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}
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}
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}
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export function cpuStateToLongString_6502(c) : string {
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function decodeFlags(c) {
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var s = "";
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s += c.N ? " N" : " -";
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s += c.V ? " V" : " -";
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s += c.D ? " D" : " -";
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s += c.Z ? " Z" : " -";
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s += c.C ? " C" : " -";
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s += c.I ? " I" : " -";
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return s;
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}
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return "PC " + hex(c.PC,4) + " " + decodeFlags(c) + "\n"
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+ " A " + hex(c.A) + " " + (c.R ? "" : "BUSY") + "\n"
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+ " X " + hex(c.X) + "\n"
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+ " Y " + hex(c.Y) + " " + "SP " + hex(c.SP) + "\n";
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}
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var OPMETA_6502 = {
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cycletime: [
|
|
7, 6, 0, 8, 3, 3, 5, 5, 3, 2, 2, 2, 4, 4, 6, 6, 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 0, 7, 4, 4, 7, 7, 6, 6, 0, 8, 3, 3, 5, 5, 4, 2, 2, 2, 4, 4, 6, 6, 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 0, 7, 4, 4, 7, 7, 6, 6, 0, 8, 3, 3, 5, 5, 3, 2, 2, 2, 3, 4, 6, 6, 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 0, 7, 4, 4, 7, 7, 6, 6, 0, 8, 3, 3, 5, 5, 4, 2, 2, 2, 5, 4, 6, 6, 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 0, 7, 4, 4, 7, 7, 0, 6, 0, 6, 3, 3, 3, 3, 2, 0, 2, 0, 4, 4, 4, 4, 2, 6, 0, 0, 4, 4, 4, 4, 2, 5, 2, 0, 0, 5, 0, 0, 2, 6, 2, 6, 3, 3, 3, 3, 2, 2, 2, 0, 4, 4, 4, 4, 2, 5, 0, 5, 4, 4, 4, 4, 2, 4, 2, 0, 4, 4, 4, 4, 2, 6, 0, 8, 3, 3, 5, 5, 2, 2, 2, 2, 4, 4, 3, 6, 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 0, 7, 4, 4, 7, 7, 2, 6, 0, 8, 3, 3, 5, 5, 2, 2, 2, 0, 4, 4, 6, 6, 2, 5, 0, 8, 4, 4, 6, 6, 2, 4, 0, 7, 4, 4, 7, 7
|
|
],
|
|
extracycles: [
|
|
0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0, 1, 1, 1, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 1, 1, 0, 1
|
|
],
|
|
insnlengths: [
|
|
1, 2, 0, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 3, 0, 3, 3, 3, 3, 3, 3, 2, 0, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 3, 0, 3, 3, 3, 3, 3, 1, 2, 0, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 3, 0, 3, 3, 3, 3, 3, 1, 2, 0, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 3, 0, 3, 3, 3, 3, 3, 0, 2, 0, 2, 2, 2, 2, 2, 1, 0, 1, 0, 3, 3, 3, 3, 2, 2, 0, 0, 2, 2, 2, 3, 1, 3, 1, 0, 0, 3, 0, 0, 2, 2, 2, 2, 2, 2, 2, 2, 1, 2, 1, 0, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 3, 1, 0, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 2, 1, 2, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 3, 0, 3, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 2, 1, 0, 3, 3, 3, 3, 2, 2, 0, 2, 2, 2, 2, 2, 1, 3, 0, 3, 3, 3, 3, 3
|
|
],
|
|
validinsns: [
|
|
1, 2, 0, 0, 0, 2, 2, 0, 1, 2, 1, 0, 0, 3, 3, 0, 2, 2, 0, 0, 0, 2, 2, 0, 1, 3, 0, 0, 0, 3, 3, 0, 3, 2, 0, 0, 2, 2, 2, 0, 1, 2, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 0, 2, 2, 0, 1, 3, 0, 0, 0, 3, 3, 0, 1, 2, 0, 0, 0, 2, 2, 0, 1, 2, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 0, 2, 2, 0, 1, 3, 0, 0, 0, 3, 3, 0, 1, 2, 0, 0, 0, 2, 2, 0, 1, 2, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 0, 2, 2, 0, 1, 3, 0, 0, 0, 3, 3, 0, 0, 2, 0, 0, 2, 2, 2, 0, 1, 0, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 2, 2, 2, 0, 1, 3, 1, 0, 0, 3, 0, 0, 2, 2, 2, 0, 2, 2, 2, 0, 1, 2, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 2, 2, 2, 0, 1, 3, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 2, 2, 2, 0, 1, 2, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 0, 2, 2, 0, 1, 3, 0, 0, 0, 3, 3, 0, 2, 2, 0, 0, 2, 2, 2, 0, 1, 2, 1, 0, 3, 3, 3, 0, 2, 2, 0, 0, 0, 2, 2, 0, 1, 3, 0, 0, 0, 3, 3, 0
|
|
],
|
|
}
|
|
|
|
export function getOpcodeMetadata_6502(opcode, address) {
|
|
// TODO: more intelligent maximum cycles
|
|
// TODO: must always be new object, b/c we might modify it
|
|
return {
|
|
opcode:opcode,
|
|
minCycles:OPMETA_6502.cycletime[opcode],
|
|
maxCycles:OPMETA_6502.cycletime[opcode] + OPMETA_6502.extracycles[opcode],
|
|
insnlength:OPMETA_6502.insnlengths[opcode]
|
|
};
|
|
}
|
|
|
|
////// Z80
|
|
|
|
export function cpuStateToLongString_Z80(c) {
|
|
function decodeFlags(flags) {
|
|
return printFlags(flags, ["S","Z",,"H",,"V","N","C"], true);
|
|
}
|
|
return "PC " + hex(c.PC,4) + " " + decodeFlags(c.AF) + " " + (c.iff1?"I":"-") + (c.iff2?"I":"-") + "\n"
|
|
+ "SP " + hex(c.SP,4) + " IR " + hex(c.IR,4) + "\n"
|
|
+ "IX " + hex(c.IX,4) + " IY " + hex(c.IY,4) + "\n"
|
|
+ "AF " + hex(c.AF,4) + " BC " + hex(c.BC,4) + "\n"
|
|
+ "DE " + hex(c.DE,4) + " HL " + hex(c.HL,4) + "\n"
|
|
;
|
|
}
|
|
|
|
export abstract class BaseZ80Platform extends BaseDebugPlatform {
|
|
|
|
_cpu;
|
|
waitCycles : number = 0;
|
|
|
|
newCPU(membus : MemoryBus, iobus : MemoryBus) {
|
|
this._cpu = new Z80();
|
|
this._cpu.connectMemoryBus(membus);
|
|
this._cpu.connectIOBus(iobus);
|
|
return this._cpu;
|
|
}
|
|
|
|
getPC() { return this._cpu.getPC(); }
|
|
getSP() { return this._cpu.getSP(); }
|
|
isStable() { return true; }
|
|
|
|
// TODO: refactor other parts into here
|
|
runCPU(cpu, cycles:number) : number {
|
|
this._cpu = cpu; // TODO?
|
|
this.waitCycles = 0; // TODO: needs to spill over betwenn calls
|
|
if (this.wasBreakpointHit())
|
|
return 0;
|
|
var debugCond = this.getDebugCallback();
|
|
var n = 0;
|
|
this.waitCycles += cycles;
|
|
while (this.waitCycles > 0) {
|
|
if (debugCond && debugCond()) {
|
|
debugCond = null;
|
|
break;
|
|
}
|
|
var cyc = cpu.advanceInsn();
|
|
n += cyc;
|
|
this.waitCycles -= cyc;
|
|
}
|
|
return n;
|
|
}
|
|
|
|
getToolForFilename = getToolForFilename_z80;
|
|
getDefaultExtension() { return ".c"; };
|
|
// TODO: Z80 opcode metadata
|
|
//this.getOpcodeMetadata = function() { }
|
|
|
|
getDebugCategories() {
|
|
return ['CPU','Stack'];
|
|
}
|
|
getDebugInfo(category:string, state:EmuState) : string {
|
|
switch (category) {
|
|
case 'CPU': return cpuStateToLongString_Z80(state.c);
|
|
case 'Stack': {
|
|
var sp = (state.c.SP-1) & 0xffff;
|
|
var start = sp & 0xff00;
|
|
var end = start + 0xff;
|
|
if (sp == 0) sp = 0x10000;
|
|
console.log(sp,start,end);
|
|
return dumpStackToString(<Platform><any>this, [], start, end, sp, 0xcd);
|
|
}
|
|
}
|
|
}
|
|
disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
|
|
return disassembleZ80(pc, read(pc), read(pc+1), read(pc+2), read(pc+3));
|
|
}
|
|
}
|
|
|
|
export function getToolForFilename_z80(fn:string) : string {
|
|
if (fn.endsWith(".c")) return "sdcc";
|
|
if (fn.endsWith(".h")) return "sdcc";
|
|
if (fn.endsWith(".s")) return "sdasz80";
|
|
if (fn.endsWith(".ns")) return "naken";
|
|
if (fn.endsWith(".scc")) return "sccz80";
|
|
if (fn.endsWith(".z")) return "zmac";
|
|
if (fn.endsWith(".wiz")) return "wiz";
|
|
return "zmac";
|
|
}
|
|
|
|
////// 6809
|
|
|
|
export function cpuStateToLongString_6809(c) {
|
|
function decodeFlags(flags) {
|
|
return printFlags(flags, ["E","F","H","I", "N","Z","V","C"], true);
|
|
}
|
|
return "PC " + hex(c.PC,4) + " " + decodeFlags(c.CC) + "\n"
|
|
+ "SP " + hex(c.SP,4) + "\n"
|
|
+ "DP " + hex(c.DP,2) + "\n"
|
|
+ " A " + hex(c.A,2) + "\n"
|
|
+ " B " + hex(c.B,2) + "\n"
|
|
+ " X " + hex(c.X,4) + "\n"
|
|
+ " Y " + hex(c.Y,4) + "\n"
|
|
+ " U " + hex(c.U,4) + "\n"
|
|
;
|
|
}
|
|
|
|
export function getToolForFilename_6809(fn:string) : string {
|
|
if (fn.endsWith(".c")) return "cmoc";
|
|
if (fn.endsWith(".h")) return "cmoc";
|
|
if (fn.endsWith(".xasm")) return "xasm6809";
|
|
return "lwasm";
|
|
}
|
|
|
|
export abstract class Base6809Platform extends BaseZ80Platform {
|
|
|
|
newCPU(membus : MemoryBus) {
|
|
var cpu = new CPU6809();
|
|
cpu.init(membus.write, membus.read, 0);
|
|
return cpu;
|
|
}
|
|
|
|
cpuStateToLongString(c:CpuState) {
|
|
return cpuStateToLongString_6809(c);
|
|
}
|
|
disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
|
|
// TODO: don't create new CPU
|
|
return new CPU6809().disasm(read(pc), read(pc+1), read(pc+2), read(pc+3), read(pc+4), pc);
|
|
}
|
|
getDefaultExtension() : string { return ".asm"; };
|
|
//this.getOpcodeMetadata = function() { }
|
|
getToolForFilename = getToolForFilename_6809;
|
|
getDebugCategories() {
|
|
return ['CPU','Stack'];
|
|
}
|
|
getDebugInfo(category:string, state:EmuState) : string {
|
|
switch (category) {
|
|
case 'CPU': return cpuStateToLongString_6809(state.c);
|
|
default: return super.getDebugInfo(category, state);
|
|
}
|
|
}
|
|
}
|
|
|
|
/// MAME SUPPORT
|
|
|
|
declare var FS, ENV, Module; // mame emscripten
|
|
|
|
export abstract class BaseMAMEPlatform {
|
|
|
|
loaded : boolean = false;
|
|
preinitted : boolean = false;
|
|
started : boolean = false;
|
|
romfn : string;
|
|
romdata : Uint8Array;
|
|
romtype : string = 'cart';
|
|
video;
|
|
running = false;
|
|
initluavars : boolean = false;
|
|
luadebugscript : string;
|
|
js_lua_string;
|
|
onBreakpointHit;
|
|
mainElement : HTMLElement;
|
|
timer : AnimationTimer;
|
|
|
|
constructor(mainElement) {
|
|
this.mainElement = mainElement;
|
|
this.timer = new AnimationTimer(20, this.poll.bind(this));
|
|
}
|
|
|
|
// http://docs.mamedev.org/techspecs/luaengine.html
|
|
luacall(s:string) : string {
|
|
if (!this.js_lua_string) this.js_lua_string = Module.cwrap('_Z13js_lua_stringPKc', 'string', ['string']);
|
|
return this.js_lua_string(s || "");
|
|
}
|
|
|
|
_pause() {
|
|
this.running = false;
|
|
this.timer.stop();
|
|
}
|
|
pause() {
|
|
if (this.loaded && this.running) {
|
|
this.luacall('emu.pause()');
|
|
this._pause();
|
|
}
|
|
}
|
|
|
|
_resume() {
|
|
this.luacall('emu.unpause()');
|
|
this.running = true;
|
|
this.timer.start();
|
|
}
|
|
resume() {
|
|
if (this.loaded && !this.running) { // TODO
|
|
this._resume();
|
|
}
|
|
}
|
|
|
|
reset() {
|
|
if (this.loaded) {
|
|
this.luacall('manager:machine():soft_reset()');
|
|
this.running = true;
|
|
this.initluavars = false;
|
|
}
|
|
}
|
|
|
|
isRunning() {
|
|
return this.running;
|
|
}
|
|
|
|
bufferConsoleOutput(s) {
|
|
if (typeof s !== 'string') return;
|
|
console.log(s);
|
|
}
|
|
|
|
startModule(mainElement, opts) {
|
|
this.started = true;
|
|
var romfn = this.romfn = this.romfn || opts.romfn;
|
|
var romdata = this.romdata = this.romdata || opts.romdata || new RAM(opts.romsize).mem;
|
|
var romtype = this.romtype = this.romtype || opts.romtype;
|
|
// create canvas
|
|
var video = this.video = new RasterVideo(this.mainElement, opts.width, opts.height);
|
|
video.create();
|
|
$(video.canvas).attr('id','canvas');
|
|
// load asm.js module
|
|
console.log("loading", opts.jsfile);
|
|
var modargs = [opts.driver,
|
|
'-debug',
|
|
'-debugger', 'none',
|
|
'-verbose', '-window', '-nokeepaspect',
|
|
'-resolution', video.canvas.width+'x'+video.canvas.height
|
|
];
|
|
if (romfn) {
|
|
modargs.push('-'+romtype, romfn);
|
|
}
|
|
if (opts.extraargs) {
|
|
modargs = modargs.concat(opts.extraargs);
|
|
}
|
|
console.log(modargs);
|
|
window['JSMESS'] = {};
|
|
window['Module'] = {
|
|
arguments: modargs,
|
|
screenIsReadOnly: true,
|
|
print: this.bufferConsoleOutput,
|
|
canvas:video.canvas,
|
|
doNotCaptureKeyboard:true,
|
|
keyboardListeningElement:video.canvas,
|
|
preInit: () => {
|
|
console.log("loading FS");
|
|
ENV.SDL_EMSCRIPTEN_KEYBOARD_ELEMENT = 'canvas';
|
|
if (opts.cfgfile) {
|
|
FS.mkdir('/cfg');
|
|
FS.writeFile('/cfg/' + opts.cfgfile, opts.cfgdata, {encoding:'utf8'});
|
|
}
|
|
if (opts.biosfile) {
|
|
FS.mkdir('/roms');
|
|
FS.mkdir('/roms/' + opts.driver);
|
|
FS.writeFile('/roms/' + opts.biosfile, opts.biosdata, {encoding:'binary'});
|
|
}
|
|
FS.mkdir('/emulator');
|
|
if (romfn) {
|
|
FS.writeFile(romfn, romdata, {encoding:'binary'});
|
|
}
|
|
//FS.writeFile('/debug.ini', 'debugger none\n', {encoding:'utf8'});
|
|
if (opts.preInit) {
|
|
opts.preInit(self);
|
|
}
|
|
this.preinitted = true;
|
|
},
|
|
preRun: [
|
|
() => {
|
|
$(video.canvas).click((e) =>{
|
|
video.canvas.focus();
|
|
});
|
|
this.loaded = true;
|
|
console.log("about to run...");
|
|
}
|
|
]
|
|
};
|
|
// preload files
|
|
// TODO: ensure loaded
|
|
var fetch_cfg, fetch_lua;
|
|
var fetch_bios = $.Deferred();
|
|
var fetch_wasm = $.Deferred();
|
|
// fetch config file
|
|
if (opts.cfgfile) {
|
|
fetch_cfg = $.get('mame/cfg/' + opts.cfgfile, (data) => {
|
|
opts.cfgdata = data;
|
|
console.log("loaded " + opts.cfgfile);
|
|
}, 'text');
|
|
}
|
|
// fetch BIOS file
|
|
if (opts.biosfile) {
|
|
var oReq1 = new XMLHttpRequest();
|
|
oReq1.open("GET", 'mame/roms/' + opts.biosfile, true);
|
|
oReq1.responseType = "arraybuffer";
|
|
oReq1.onload = (oEvent) => {
|
|
opts.biosdata = new Uint8Array(oReq1.response);
|
|
console.log("loaded " + opts.biosfile); // + " (" + oEvent.total + " bytes)");
|
|
fetch_bios.resolve();
|
|
};
|
|
oReq1.ontimeout = function (oEvent) {
|
|
throw Error("Timeout loading " + opts.biosfile);
|
|
}
|
|
oReq1.send();
|
|
} else {
|
|
fetch_bios.resolve();
|
|
}
|
|
// load debugger Lua script
|
|
fetch_lua = $.get('mame/debugger.lua', (data) => {
|
|
this.luadebugscript = data;
|
|
console.log("loaded debugger.lua");
|
|
}, 'text');
|
|
// load WASM
|
|
{
|
|
var oReq2 = new XMLHttpRequest();
|
|
oReq2.open("GET", 'mame/' + opts.jsfile.replace('.js','.wasm'), true);
|
|
oReq2.responseType = "arraybuffer";
|
|
oReq2.onload = (oEvent) => {
|
|
console.log("loaded WASM file");
|
|
window['Module'].wasmBinary = new Uint8Array(oReq2.response);
|
|
fetch_wasm.resolve();
|
|
};
|
|
oReq2.ontimeout = function (oEvent) {
|
|
throw Error("Timeout loading " + opts.jsfile);
|
|
}
|
|
oReq2.send();
|
|
}
|
|
// start loading script
|
|
$.when(fetch_lua, fetch_cfg, fetch_bios, fetch_wasm).done( () => {
|
|
var script = document.createElement('script');
|
|
script.src = 'mame/' + opts.jsfile;
|
|
document.getElementsByTagName('head')[0].appendChild(script);
|
|
console.log("created script element");
|
|
});
|
|
// for debugging via browser console
|
|
window['mamelua'] = (s:string) => {
|
|
this.initlua();
|
|
return [s, this.luacall(s)];
|
|
};
|
|
}
|
|
|
|
loadROMFile(data) {
|
|
this.romdata = data;
|
|
if (this.preinitted && this.romfn) {
|
|
FS.writeFile(this.romfn, data, {encoding:'binary'});
|
|
}
|
|
}
|
|
|
|
loadRegion(region, data) {
|
|
if (this.loaded && data.length > 0) {
|
|
//this.luacall('cart=manager:machine().images["cart"]\nprint(cart:filename())\ncart:load("' + region + '")\n');
|
|
var s = 'rgn = manager:machine():memory().regions["' + region + '"]\n';
|
|
//s += 'print(rgn.size)\n';
|
|
for (var i=0; i<data.length; i+=4) {
|
|
var v = data[i] + (data[i+1]<<8) + (data[i+2]<<16) + (data[i+3]<<24);
|
|
s += 'rgn:write_u32(' + i + ',' + v + ')\n'; // TODO: endian?
|
|
}
|
|
this.luacall(s);
|
|
this.reset();
|
|
}
|
|
}
|
|
|
|
// DEBUGGING SUPPORT
|
|
|
|
initlua() {
|
|
if (!this.initluavars) {
|
|
this.luacall(this.luadebugscript);
|
|
this.luacall('mamedbg.init()')
|
|
this.initluavars = true;
|
|
}
|
|
}
|
|
|
|
readAddress(a:number) : number {
|
|
this.initlua();
|
|
return parseInt(this.luacall('return mem:read_u8(' + a + ')'));
|
|
}
|
|
|
|
getCPUReg(reg:string) {
|
|
if (!this.loaded) return 0; // TODO
|
|
this.initlua();
|
|
return parseInt(this.luacall('return cpu.state.'+reg+'.value'));
|
|
}
|
|
|
|
grabState(expr:string) {
|
|
this.initlua();
|
|
return {
|
|
c:this.getCPUState(),
|
|
buf:this.luacall("return string.tohex(" + expr + ")")
|
|
}
|
|
}
|
|
|
|
saveState() {
|
|
return this.grabState("manager:machine():buffer_save()");
|
|
}
|
|
|
|
loadState(state) {
|
|
this.initlua();
|
|
return this.luacall("manager:machine():buffer_load(string.fromhex('" + state.buf + "'))");
|
|
}
|
|
|
|
poll() {
|
|
if (this.onBreakpointHit && this.luacall("return tostring(mamedbg.is_stopped())") == 'true') {
|
|
this._pause();
|
|
//this.luacall("manager:machine():buffer_load(lastBreakState)");
|
|
var state = this.grabState("lastBreakState");
|
|
this.onBreakpointHit(state);
|
|
}
|
|
}
|
|
clearDebug() {
|
|
this.onBreakpointHit = null;
|
|
if (this.loaded) {
|
|
this.initlua();
|
|
this.luacall('mamedbg.reset()');
|
|
}
|
|
}
|
|
getDebugCallback() {
|
|
return this.onBreakpointHit;// TODO?
|
|
}
|
|
setupDebug(callback) {
|
|
this.onBreakpointHit = callback;
|
|
}
|
|
debugcmd(s) {
|
|
this.initlua()
|
|
this.luacall(s);
|
|
this._resume();
|
|
}
|
|
runToPC(pc) {
|
|
this.debugcmd('mamedbg.runTo(' + pc + ')');
|
|
}
|
|
runToVsync() {
|
|
this.debugcmd('mamedbg.runToVsync()');
|
|
}
|
|
runUntilReturn() {
|
|
this.debugcmd('mamedbg.runUntilReturn()');
|
|
}
|
|
// TODO
|
|
runEval() {
|
|
this.reset();
|
|
this.step();
|
|
}
|
|
step() {
|
|
this.debugcmd('mamedbg.step()');
|
|
}
|
|
getDebugCategories() {
|
|
return ['CPU'];
|
|
}
|
|
getDebugInfo(category:string, state:EmuState) : string {
|
|
switch (category) {
|
|
case 'CPU': return this.cpuStateToLongString(state.c);
|
|
}
|
|
}
|
|
getDebugTree() {
|
|
this.initlua();
|
|
var devices = JSON.parse(this.luacall(`return table.tojson(manager:machine().devices)`));
|
|
var images = JSON.parse(this.luacall(`return table.tojson(manager:machine().images)`));
|
|
var regions = JSON.parse(this.luacall(`return table.tojson(manager:machine():memory().regions)`));
|
|
return {
|
|
devices: devices,
|
|
images: images,
|
|
regions: regions,
|
|
}
|
|
}
|
|
|
|
abstract cpuStateToLongString(c) : string;
|
|
abstract getCPUState() : any;
|
|
}
|
|
|
|
export abstract class BaseMAME6502Platform extends BaseMAMEPlatform {
|
|
getPC() : number {
|
|
return this.getCPUReg('PC');
|
|
}
|
|
getSP() : number {
|
|
return this.getCPUReg('SP');
|
|
}
|
|
isStable() { return true; }
|
|
getCPUState() {
|
|
return {
|
|
PC:this.getPC(),
|
|
SP:this.getSP(),
|
|
A:this.getCPUReg('A'),
|
|
X:this.getCPUReg('X'),
|
|
Y:this.getCPUReg('Y'),
|
|
flags:this.getCPUReg('P'),
|
|
};
|
|
}
|
|
disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
|
|
return disassemble6502(pc, read(pc), read(pc+1), read(pc+2));
|
|
}
|
|
cpuStateToLongString(c) {
|
|
return cpuStateToLongString_6502(c);
|
|
}
|
|
}
|
|
|
|
export abstract class BaseMAMEZ80Platform extends BaseMAMEPlatform {
|
|
getPC() : number {
|
|
return this.getCPUReg('PC');
|
|
}
|
|
getSP() : number {
|
|
return this.getCPUReg('SP');
|
|
}
|
|
isStable() { return true; }
|
|
getCPUState() {
|
|
return {
|
|
PC:this.getPC(),
|
|
SP:this.getSP(),
|
|
AF:this.getCPUReg('AF'),
|
|
BC:this.getCPUReg('BC'),
|
|
DE:this.getCPUReg('DE'),
|
|
HL:this.getCPUReg('HL'),
|
|
IX:this.getCPUReg('IX'),
|
|
IY:this.getCPUReg('IY'),
|
|
IR:this.getCPUReg('R') + (this.getCPUReg('I') << 8),
|
|
};
|
|
}
|
|
disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
|
|
return disassembleZ80(pc, read(pc), read(pc+1), read(pc+2), read(pc+3));
|
|
}
|
|
cpuStateToLongString(c) {
|
|
return cpuStateToLongString_Z80(c);
|
|
}
|
|
}
|
|
|
|
//TODO: how to get stack_end?
|
|
export function dumpStackToString(platform:Platform, mem:Uint8Array|number[], start:number, end:number, sp:number, jsrop:number) : string {
|
|
var s = "";
|
|
var nraw = 0;
|
|
//s = dumpRAM(mem.slice(start,start+end+1), start, end-start+1);
|
|
function read(addr) {
|
|
if (addr < mem.length) return mem[addr];
|
|
else return platform.readAddress(addr);
|
|
}
|
|
while (sp < end) {
|
|
sp++;
|
|
// see if there's a JSR on the stack here
|
|
// TODO: make work with roms and memory maps
|
|
var addr = read(sp) + read(sp+1)*256;
|
|
var jsrofs = jsrop==0x20 ? -2 : -3; // 6502 vs Z80
|
|
var opcode = read(addr + jsrofs); // might be out of bounds
|
|
if (opcode == jsrop) { // JSR
|
|
s += "\n$" + hex(sp) + ": ";
|
|
s += hex(addr,4) + " " + lookupSymbol(platform, addr, true);
|
|
sp++;
|
|
nraw = 0;
|
|
} else {
|
|
if (nraw == 0)
|
|
s += "\n$" + hex(sp) + ": ";
|
|
s += hex(read(sp)) + " ";
|
|
if (++nraw == 8) nraw = 0;
|
|
}
|
|
}
|
|
return s+"\n";
|
|
}
|
|
|
|
// TODO: slow, funky, uses global
|
|
export function lookupSymbol(platform:Platform, addr:number, extra:boolean) {
|
|
var start = addr;
|
|
var addr2symbol = platform.debugSymbols && platform.debugSymbols.addr2symbol;
|
|
while (addr2symbol && addr >= 0) {
|
|
var sym = addr2symbol[addr];
|
|
if (sym) { // return first symbol we find
|
|
var sym = addr2symbol[addr];
|
|
return extra ? (sym + " + $" + hex(start-addr)) : sym;
|
|
}
|
|
if (!extra) break;
|
|
addr--;
|
|
}
|
|
return "";
|
|
}
|
|
|
|
/// new Machine platform adapters
|
|
|
|
import { Bus, Resettable, FrameBased, VideoSource, SampledAudioSource, AcceptsROM, AcceptsBIOS, AcceptsKeyInput, SavesState, SavesInputState, HasCPU, TrapCondition, CPU, HasSerialIO, SerialIOInterface, SerialEvent, AcceptsJoyInput } from "./devices";
|
|
import { Probeable, RasterFrameBased, AcceptsPaddleInput, SampledAudioSink, ProbeAll, NullProbe } from "./devices";
|
|
import { SampledAudio } from "./audio";
|
|
import { ProbeRecorder } from "./recorder";
|
|
|
|
export interface Machine extends Bus, Resettable, FrameBased, AcceptsROM, HasCPU, SavesState<EmuState>, SavesInputState<any> {
|
|
}
|
|
|
|
export function hasVideo(arg:any): arg is VideoSource {
|
|
return typeof arg.connectVideo === 'function';
|
|
}
|
|
export function hasAudio(arg:any): arg is SampledAudioSource {
|
|
return typeof arg.connectAudio === 'function';
|
|
}
|
|
export function hasKeyInput(arg:any): arg is AcceptsKeyInput {
|
|
return typeof arg.setKeyInput === 'function';
|
|
}
|
|
export function hasJoyInput(arg:any): arg is AcceptsJoyInput {
|
|
return typeof arg.setJoyInput === 'function';
|
|
}
|
|
export function hasPaddleInput(arg:any): arg is AcceptsPaddleInput {
|
|
return typeof arg.setPaddleInput === 'function';
|
|
}
|
|
export function isRaster(arg:any): arg is RasterFrameBased {
|
|
return typeof arg.getRasterY === 'function';
|
|
}
|
|
export function hasProbe(arg:any): arg is Probeable {
|
|
return typeof arg.connectProbe == 'function';
|
|
}
|
|
export function hasBIOS(arg:any): arg is AcceptsBIOS {
|
|
return typeof arg.loadBIOS == 'function';
|
|
}
|
|
export function hasSerialIO(arg:any): arg is HasSerialIO {
|
|
return typeof arg.connectSerialIO === 'function';
|
|
}
|
|
|
|
export abstract class BaseMachinePlatform<T extends Machine> extends BaseDebugPlatform implements Platform {
|
|
machine : T;
|
|
mainElement : HTMLElement;
|
|
timer : AnimationTimer;
|
|
video : RasterVideo;
|
|
audio : SampledAudio;
|
|
poller : ControllerPoller;
|
|
serialIOInterface : SerialIOInterface;
|
|
serialVisualizer : SerialIOVisualizer;
|
|
|
|
probeRecorder : ProbeRecorder;
|
|
startProbing;
|
|
stopProbing;
|
|
|
|
abstract newMachine() : T;
|
|
abstract getToolForFilename(s:string) : string;
|
|
abstract getDefaultExtension() : string;
|
|
abstract getPresets() : Preset[];
|
|
|
|
constructor(mainElement : HTMLElement) {
|
|
super();
|
|
this.mainElement = mainElement;
|
|
}
|
|
|
|
reset() {
|
|
this.machine.reset();
|
|
if (this.serialVisualizer != null) this.serialVisualizer.reset();
|
|
}
|
|
loadState(s) { this.machine.loadState(s); }
|
|
saveState() { return this.machine.saveState(); }
|
|
getSP() { return this.machine.cpu.getSP(); }
|
|
getPC() { return this.machine.cpu.getPC(); }
|
|
isStable() { return this.machine.cpu.isStable(); }
|
|
getCPUState() { return this.machine.cpu.saveState(); }
|
|
loadControlsState(s) { this.machine.loadControlsState(s); }
|
|
saveControlsState() { return this.machine.saveControlsState(); }
|
|
|
|
async start() {
|
|
this.machine = this.newMachine();
|
|
const m = this.machine;
|
|
// block on WASM loading
|
|
if (m instanceof BaseWASMMachine) {
|
|
await m.loadWASM();
|
|
}
|
|
var videoFrequency;
|
|
if (hasVideo(m)) {
|
|
var vp = m.getVideoParams();
|
|
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());
|
|
// TODO: support keyboard w/o video?
|
|
if (hasKeyInput(m)) {
|
|
this.video.setKeyboardEvents(m.setKeyInput.bind(m));
|
|
this.poller = new ControllerPoller(m.setKeyInput.bind(m));
|
|
}
|
|
videoFrequency = vp.videoFrequency;
|
|
}
|
|
this.timer = new AnimationTimer(videoFrequency || 60, this.nextFrame.bind(this));
|
|
if (hasAudio(m)) {
|
|
var ap = m.getAudioParams();
|
|
this.audio = new SampledAudio(ap.sampleRate);
|
|
this.audio.start();
|
|
m.connectAudio(this.audio);
|
|
}
|
|
if (hasPaddleInput(m)) {
|
|
this.video.setupMouseEvents();
|
|
}
|
|
if (hasProbe(m)) {
|
|
this.probeRecorder = new ProbeRecorder(m);
|
|
this.startProbing = () => {
|
|
m.connectProbe(this.probeRecorder);
|
|
return this.probeRecorder;
|
|
};
|
|
this.stopProbing = () => {
|
|
m.connectProbe(null);
|
|
};
|
|
}
|
|
if (hasBIOS(m)) {
|
|
this.loadBIOS = (title, data) => {
|
|
m.loadBIOS(data, title);
|
|
};
|
|
}
|
|
if (hasSerialIO(m)) {
|
|
if (this.serialIOInterface == null) {
|
|
this.serialVisualizer = new SerialIOVisualizer(this.mainElement, m);
|
|
} else {
|
|
m.connectSerialIO(this.serialIOInterface);
|
|
}
|
|
}
|
|
}
|
|
|
|
loadROM(title, data) {
|
|
this.machine.loadROM(data);
|
|
this.reset();
|
|
}
|
|
|
|
loadBIOS : (title, data) => void; // only set if hasBIOS() is true
|
|
|
|
pollControls() {
|
|
this.poller && this.poller.poll();
|
|
if (hasPaddleInput(this.machine)) {
|
|
this.machine.setPaddleInput(0, this.video.paddle_x);
|
|
this.machine.setPaddleInput(1, this.video.paddle_y);
|
|
}
|
|
// TODO: put into interface
|
|
if (this.machine['pollControls']) {
|
|
this.machine['pollControls']();
|
|
}
|
|
}
|
|
|
|
advance(novideo:boolean) {
|
|
var steps = this.machine.advanceFrame(this.getDebugCallback());
|
|
if (!novideo && this.video) this.video.updateFrame();
|
|
if (!novideo && this.serialVisualizer) this.serialVisualizer.refresh();
|
|
return steps;
|
|
}
|
|
|
|
advanceFrameClock(trap, step) {
|
|
if (!(step > 0)) return;
|
|
if (this.machine instanceof BaseWASMMachine) {
|
|
return this.machine.advanceFrameClock(trap, step);
|
|
} else {
|
|
return this.machine.advanceFrame(() => {
|
|
return --step <= 0;
|
|
});
|
|
}
|
|
}
|
|
|
|
isRunning() {
|
|
return this.timer && this.timer.isRunning();
|
|
}
|
|
|
|
resume() {
|
|
this.timer.start();
|
|
this.audio && this.audio.start();
|
|
}
|
|
|
|
pause() {
|
|
this.timer.stop();
|
|
this.audio && this.audio.stop();
|
|
// i guess for runToVsync()?
|
|
if (this.probeRecorder) {
|
|
this.probeRecorder.singleFrame = true;
|
|
}
|
|
}
|
|
// so probe views stick around TODO: must be a better way?
|
|
runToVsync() {
|
|
if (this.probeRecorder) {
|
|
this.probeRecorder.clear();
|
|
this.probeRecorder.singleFrame = false;
|
|
}
|
|
super.runToVsync();
|
|
}
|
|
|
|
// TODO: reset target clock counter
|
|
getRasterScanline() {
|
|
return isRaster(this.machine) && this.machine.getRasterY();
|
|
}
|
|
|
|
readAddress(addr : number) : number {
|
|
return this.machine.read(addr);
|
|
}
|
|
|
|
getDebugCategories() {
|
|
if (isDebuggable(this.machine))
|
|
return this.machine.getDebugCategories();
|
|
}
|
|
getDebugInfo(category:string, state:EmuState) : string {
|
|
return isDebuggable(this.machine) && this.machine.getDebugInfo(category, state);
|
|
}
|
|
}
|
|
|
|
// TODO: move debug info into CPU?
|
|
|
|
export abstract class Base6502MachinePlatform<T extends Machine> extends BaseMachinePlatform<T> {
|
|
|
|
getOpcodeMetadata = getOpcodeMetadata_6502;
|
|
getToolForFilename = getToolForFilename_6502;
|
|
|
|
disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
|
|
return disassemble6502(pc, read(pc), read(pc+1), read(pc+2));
|
|
}
|
|
getDebugCategories() {
|
|
if (isDebuggable(this.machine))
|
|
return this.machine.getDebugCategories();
|
|
else
|
|
return ['CPU','ZPRAM','Stack'];
|
|
}
|
|
getDebugInfo(category:string, state:EmuState) : string {
|
|
switch (category) {
|
|
case 'CPU': return cpuStateToLongString_6502(state.c);
|
|
case 'ZPRAM': return dumpRAM(state.b||state.ram, 0x0, 0x100);
|
|
case 'Stack': return dumpStackToString(<Platform><any>this, state.b||state.ram, 0x100, 0x1ff, 0x100+state.c.SP, 0x20);
|
|
default: return isDebuggable(this.machine) && this.machine.getDebugInfo(category, state);
|
|
}
|
|
}
|
|
}
|
|
|
|
export abstract class BaseZ80MachinePlatform<T extends Machine> extends BaseMachinePlatform<T> {
|
|
|
|
//getOpcodeMetadata = getOpcodeMetadata_z80;
|
|
getToolForFilename = getToolForFilename_z80;
|
|
|
|
getDebugCategories() {
|
|
if (isDebuggable(this.machine))
|
|
return this.machine.getDebugCategories();
|
|
else
|
|
return ['CPU','Stack'];
|
|
}
|
|
getDebugInfo(category:string, state:EmuState) : string {
|
|
switch (category) {
|
|
case 'CPU': return cpuStateToLongString_Z80(state.c);
|
|
case 'Stack': {
|
|
var sp = (state.c.SP-1) & 0xffff;
|
|
var start = sp & 0xff00;
|
|
var end = start + 0xff;
|
|
if (sp == 0) sp = 0x10000;
|
|
console.log(sp,start,end);
|
|
return dumpStackToString(<Platform><any>this, [], start, end, sp, 0xcd);
|
|
}
|
|
default: return isDebuggable(this.machine) && this.machine.getDebugInfo(category, state);
|
|
}
|
|
}
|
|
disassemble(pc:number, read:(addr:number)=>number) : DisasmLine {
|
|
return disassembleZ80(pc, read(pc), read(pc+1), read(pc+2), read(pc+3));
|
|
}
|
|
|
|
}
|
|
|
|
// WASM Support
|
|
// TODO: detangle from c64
|
|
|
|
export abstract class BaseWASMMachine {
|
|
prefix : string;
|
|
instance : WebAssembly.Instance;
|
|
exports : any;
|
|
sys : number;
|
|
pixel_dest : Uint32Array;
|
|
pixel_src : Uint32Array;
|
|
stateptr : number;
|
|
statearr : Uint8Array;
|
|
cpustateptr : number;
|
|
cpustatearr : Uint8Array;
|
|
ctrlstateptr : number;
|
|
ctrlstatearr : Uint8Array;
|
|
cpu : CPU;
|
|
romptr : number;
|
|
romlen : number;
|
|
romarr : Uint8Array;
|
|
biosptr : number;
|
|
biosarr : Uint8Array;
|
|
audio : SampledAudioSink;
|
|
audioarr : Float32Array;
|
|
probe : ProbeAll;
|
|
maxROMSize : number = 0x40000;
|
|
|
|
abstract getCPUState() : CpuState;
|
|
abstract saveState() : EmuState;
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abstract loadState(state: EmuState);
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constructor(prefix: string) {
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this.prefix = prefix;
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var self = this;
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this.cpu = {
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getPC: self.getPC.bind(self),
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getSP: self.getSP.bind(self),
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isStable: self.isStable.bind(self),
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reset: self.reset.bind(self),
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saveState: () => {
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|
return self.getCPUState();
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},
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loadState: () => {
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|
console.log("loadState not implemented")
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|
},
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|
connectMemoryBus() {
|
|
console.log("connectMemoryBus not implemented")
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|
},
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|
}
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|
}
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|
getImports(wmod: WebAssembly.Module) {
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|
return {};
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|
}
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|
async fetchWASM() {
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|
var wasmResponse = await fetch('res/'+this.prefix+'.wasm');
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var wasmBinary = await wasmResponse.arrayBuffer();
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|
var wasmCompiled = await WebAssembly.compile(wasmBinary);
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var wasmResult = await WebAssembly.instantiate(wasmCompiled, this.getImports(wasmCompiled));
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this.instance = wasmResult;
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this.exports = wasmResult.exports;
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}
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|
async fetchBIOS() {
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var biosResponse = await fetch('res/'+this.prefix+'.bios');
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var biosBinary = await biosResponse.arrayBuffer();
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this.biosptr = this.exports.malloc(biosBinary.byteLength);
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this.biosarr = new Uint8Array(this.exports.memory.buffer, this.biosptr, biosBinary.byteLength);
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this.loadBIOS(new Uint8Array(biosBinary));
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}
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async initWASM() {
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|
// init machine instance
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|
this.sys = this.exports.machine_init(this.biosptr);
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let statesize = this.exports.machine_get_state_size();
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this.stateptr = this.exports.malloc(statesize);
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let ctrlstatesize = this.exports.machine_get_controls_state_size();
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this.ctrlstateptr = this.exports.malloc(ctrlstatesize);
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let cpustatesize = this.exports.machine_get_cpu_state_size();
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|
this.cpustateptr = this.exports.malloc(cpustatesize);
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this.romptr = this.exports.malloc(this.maxROMSize);
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// create state buffers
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// must do this after allocating memory (and everytime we grow memory?)
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this.statearr = new Uint8Array(this.exports.memory.buffer, this.stateptr, statesize);
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this.ctrlstatearr = new Uint8Array(this.exports.memory.buffer, this.ctrlstateptr, ctrlstatesize);
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this.cpustatearr = new Uint8Array(this.exports.memory.buffer, this.cpustateptr, cpustatesize);
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// create audio buffer
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|
let sampbufsize = 4096*4;
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|
this.audioarr = new Float32Array(this.exports.memory.buffer, this.exports.machine_get_sample_buffer(), sampbufsize);
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|
// create ROM buffer
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|
this.romarr = new Uint8Array(this.exports.memory.buffer, this.romptr, this.maxROMSize);
|
|
// enable c64 joystick map to arrow keys (TODO)
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|
//this.exports.c64_set_joystick_type(this.sys, 1);
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|
console.log('machine_init', this.sys, statesize, ctrlstatesize, cpustatesize, sampbufsize);
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|
}
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|
async loadWASM() {
|
|
await this.fetchWASM();
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|
this.exports.memory.grow(64); // TODO: need more when probing?
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|
await this.fetchBIOS();
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|
await this.initWASM();
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|
}
|
|
getPC() : number {
|
|
return this.exports.machine_cpu_get_pc(this.sys);
|
|
}
|
|
getSP() : number {
|
|
return this.exports.machine_cpu_get_sp(this.sys);
|
|
}
|
|
isStable() : boolean {
|
|
return this.exports.machine_cpu_is_stable(this.sys);
|
|
}
|
|
loadROM(rom: Uint8Array) {
|
|
if (rom.length > this.maxROMSize) throw new EmuHalt(`Rom size too big: ${rom.length} bytes`);
|
|
this.romarr.set(rom);
|
|
this.romlen = rom.length;
|
|
console.log('load rom', rom.length, 'bytes');
|
|
this.reset(); // TODO?
|
|
}
|
|
// TODO: can't load after machine_init
|
|
loadBIOS(srcArray: Uint8Array) {
|
|
this.biosarr.set(srcArray);
|
|
}
|
|
reset() {
|
|
this.exports.machine_reset(this.sys);
|
|
}
|
|
/* TODO: we don't need this because c64_exec does this?
|
|
pollControls() {
|
|
this.exports.machine_start_frame(this.sys);
|
|
}
|
|
*/
|
|
read(address: number) : number {
|
|
return this.exports.machine_mem_read(this.sys, address & 0xffff);
|
|
}
|
|
readConst(address: number) : number {
|
|
return this.exports.machine_mem_read(this.sys, address & 0xffff);
|
|
}
|
|
write(address: number, value: number) : void {
|
|
this.exports.machine_mem_write(this.sys, address & 0xffff, value & 0xff);
|
|
}
|
|
getAudioParams() {
|
|
return {sampleRate:44100, stereo:false};
|
|
}
|
|
connectVideo(pixels:Uint32Array) : void {
|
|
this.pixel_dest = pixels;
|
|
var pixbuf = this.exports.machine_get_pixel_buffer(this.sys); // save video pointer
|
|
this.pixel_src = new Uint32Array(this.exports.memory.buffer, pixbuf, pixels.length);
|
|
console.log('connectVideo', pixbuf, pixels.length);
|
|
}
|
|
syncVideo() {
|
|
if (this.exports.machine_update_video) {
|
|
this.exports.machine_update_video(this.sys);
|
|
}
|
|
if (this.pixel_dest != null) {
|
|
this.pixel_dest.set(this.pixel_src);
|
|
}
|
|
}
|
|
// assume controls buffer is smaller than cpu buffer
|
|
saveControlsState() : any {
|
|
//console.log(1, this.romptr, this.romlen, this.ctrlstateptr, this.romarr.slice(0,4), this.ctrlstatearr.slice(0,4));
|
|
this.exports.machine_save_controls_state(this.sys, this.ctrlstateptr);
|
|
//console.log(2, this.romptr, this.romlen, this.ctrlstateptr, this.romarr.slice(0,4), this.ctrlstatearr.slice(0,4));
|
|
return { controls:this.ctrlstatearr.slice(0) }
|
|
}
|
|
loadControlsState(state) : void {
|
|
this.ctrlstatearr.set(state.controls);
|
|
this.exports.machine_load_controls_state(this.sys, this.ctrlstateptr);
|
|
}
|
|
connectAudio(audio : SampledAudioSink) : void {
|
|
this.audio = audio;
|
|
}
|
|
syncAudio() {
|
|
if (this.audio != null) {
|
|
var n = this.exports.machine_get_sample_count();
|
|
for (var i=0; i<n; i++) {
|
|
this.audio.feedSample(this.audioarr[i], 1);
|
|
}
|
|
}
|
|
}
|
|
// TODO: tick might advance 1 instruction
|
|
advanceFrameClock(trap, cpf:number) : number {
|
|
var i : number;
|
|
if (trap) {
|
|
for (i=0; i<cpf; i++) {
|
|
if (trap()) {
|
|
break;
|
|
}
|
|
this.exports.machine_tick(this.sys);
|
|
}
|
|
} else {
|
|
this.exports.machine_exec(this.sys, cpf);
|
|
i = cpf;
|
|
}
|
|
this.syncVideo();
|
|
this.syncAudio();
|
|
return i;
|
|
}
|
|
copyProbeData() {
|
|
if (this.probe && !(this.probe instanceof NullProbe)) {
|
|
var datalen = this.exports.machine_get_probe_buffer_size();
|
|
var dataaddr = this.exports.machine_get_probe_buffer_address();
|
|
// TODO: more efficient way to put into probe
|
|
var databuf = new Uint32Array(this.exports.memory.buffer, dataaddr, datalen);
|
|
this.probe.logNewFrame(); // TODO: machine should do this
|
|
this.probe.addLogBuffer(databuf);
|
|
}
|
|
}
|
|
connectProbe(probe: ProbeAll): void {
|
|
this.probe = probe;
|
|
}
|
|
getDebugTree() {
|
|
return this.saveState();
|
|
}
|
|
}
|
|
|
|
import { loadScript } from "../ide/ui";
|
|
import { WasmFs } from "@wasmer/wasmfs";
|
|
|
|
let stub = function() { console.log(arguments); return 0 }
|
|
|
|
export abstract class BaseWASIMachine extends BaseWASMMachine {
|
|
m_wasi;
|
|
wasiInstance;
|
|
wasmFs : WasmFs;
|
|
|
|
constructor(prefix: string) {
|
|
super(prefix);
|
|
}
|
|
getImports(wmod: WebAssembly.Module) {
|
|
var imports = this.wasiInstance.getImports(wmod);
|
|
// TODO: eliminate these imports
|
|
imports.env = {
|
|
system: stub,
|
|
__sys_mkdir: stub,
|
|
__sys_chmod: stub,
|
|
__sys_stat64: stub,
|
|
__sys_unlink: stub,
|
|
__sys_rename: stub,
|
|
__sys_getdents64: stub,
|
|
__sys_getcwd: stub,
|
|
__sys_rmdir: stub,
|
|
emscripten_thread_sleep: stub,
|
|
}
|
|
return imports;
|
|
}
|
|
stdoutWrite(buffer) {
|
|
console.log('>>>', buffer.toString());
|
|
return buffer.length;
|
|
}
|
|
async loadWASM() {
|
|
await loadScript('node_modules/@wasmer/wasi/lib/index.iife.js'); //TODO: require('@wasmer/wasi');
|
|
await loadScript('node_modules/@wasmer/wasmfs/lib/index.iife.js'); //TODO: require('@wasmer/wasi');
|
|
let WASI = window['WASI'];
|
|
let WasmFs = window['WasmFs'];
|
|
this.wasmFs = new WasmFs.WasmFs();
|
|
let bindings = WASI.WASI.defaultBindings;
|
|
bindings.fs = this.wasmFs.fs;
|
|
bindings.fs.mkdirSync('/tmp');
|
|
bindings.path = bindings.path.default;
|
|
this.wasiInstance = new WASI.WASI({
|
|
preopenDirectories: {'/tmp':'/tmp'},
|
|
env: {},
|
|
args: [],
|
|
bindings: bindings
|
|
});
|
|
this.wasmFs.volume.fds[1].write = this.stdoutWrite.bind(this);
|
|
this.wasmFs.volume.fds[2].write = this.stdoutWrite.bind(this);
|
|
await this.fetchWASM();
|
|
this.wasiInstance.start(this.instance);
|
|
await this.initWASM();
|
|
}
|
|
}
|
|
|
|
/////
|
|
|
|
class SerialIOVisualizer {
|
|
|
|
textarea : HTMLTextAreaElement;
|
|
//vlist: VirtualTextScroller;
|
|
device: HasSerialIO;
|
|
lastOutCount = -1;
|
|
lastInCount = -1;
|
|
|
|
constructor(parentElement: HTMLElement, device: HasSerialIO) {
|
|
this.device = device;
|
|
this.textarea = document.createElement("textarea");
|
|
this.textarea.classList.add('transcript');
|
|
this.textarea.classList.add('transcript-style-2');
|
|
this.textarea.style.display = 'none';
|
|
parentElement.appendChild(this.textarea);
|
|
/*
|
|
this.vlist = new VirtualTextScroller(parentElement);
|
|
this.vlist.create(parentElement, 1024, this.getMemoryLineAt.bind(this));
|
|
this.vlist.maindiv.style.height = '8em';
|
|
this.vlist.maindiv.style.overflow = 'clip';
|
|
*/
|
|
}
|
|
reset() {
|
|
this.lastOutCount = 0;
|
|
this.lastInCount = 0;
|
|
this.textarea.style.display = 'none';
|
|
}
|
|
refresh() {
|
|
var lastop = '';
|
|
if (this.device.serialOut.length != this.lastOutCount) {
|
|
var s = '';
|
|
for (var ev of this.device.serialOut) {
|
|
if (lastop != ev.op) {
|
|
if (s != '') s += '\n';
|
|
if (ev.op === 'read') s += '<< ';
|
|
else if (ev.op === 'write') s += '>> ';
|
|
lastop = ev.op;
|
|
}
|
|
if (ev.value == 10) { s += '\u21b5'; lastop = ''; }
|
|
else { s += byteToASCII(ev.value); }
|
|
}
|
|
this.textarea.value = s;
|
|
this.lastOutCount = this.device.serialOut.length;
|
|
this.textarea.style.display = 'block';
|
|
}
|
|
}
|
|
}
|