mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2024-09-27 08:54:48 +00:00
173 lines
4.3 KiB
TypeScript
173 lines
4.3 KiB
TypeScript
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import { Probeable, ProbeAll } from "./devices";
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export enum ProbeFlags {
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CLOCKS = 0x00000000,
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EXECUTE = 0x01000000,
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INTERRUPT = 0x08000000,
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ILLEGAL = 0x09000000,
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SP_PUSH = 0x0a000000,
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SP_POP = 0x0b000000,
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HAS_VALUE = 0x10000000,
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MEM_READ = 0x12000000,
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MEM_WRITE = 0x13000000,
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IO_READ = 0x14000000,
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IO_WRITE = 0x15000000,
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VRAM_READ = 0x16000000,
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VRAM_WRITE= 0x17000000,
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DMA_READ = 0x18000000,
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DMA_WRITE = 0x19000000,
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WAIT = 0x1f000000,
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SCANLINE = 0x7e000000,
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FRAME = 0x7f000000,
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}
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class ProbeFrame {
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data : Uint32Array;
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len : number;
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}
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export class ProbeRecorder implements ProbeAll {
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m : Probeable; // machine to probe
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buf : Uint32Array; // buffer
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idx : number = 0; // index into buffer
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sl : number = 0; // scanline
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cur_sp = -1; // last stack pointer
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singleFrame : boolean = true; // clear between frames
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constructor(m:Probeable, buflen?:number) {
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this.m = m;
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this.reset(buflen || 0x100000);
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}
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start() {
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this.m.connectProbe(this);
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}
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stop() {
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this.m.connectProbe(null);
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}
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reset(newbuflen? : number) {
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if (newbuflen) this.buf = new Uint32Array(newbuflen);
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this.sl = 0;
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this.cur_sp = -1;
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this.clear();
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}
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clear() {
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this.idx = 0;
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}
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logData(a:number) {
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this.log(a);
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}
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log(a:number) {
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// TODO: coalesce READ and EXECUTE and PUSH/POP
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if (this.idx >= this.buf.length) return;
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this.buf[this.idx++] = a;
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}
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relog(a:number) {
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this.buf[this.idx-1] = a;
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}
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lastOp() {
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if (this.idx > 0)
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return this.buf[this.idx-1] & 0xff000000;
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else
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return -1;
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}
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lastAddr() {
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if (this.idx > 0)
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return this.buf[this.idx-1] & 0xffffff;
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else
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return -1;
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}
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addLogBuffer(src: Uint32Array) {
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if (this.idx + src.length > this.buf.length) {
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src = src.slice(0, this.buf.length - this.idx);
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}
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this.buf.set(src, this.idx);
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this.idx += src.length;
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}
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logClocks(clocks:number) {
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clocks |= 0;
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if (clocks > 0) {
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if (this.lastOp() == ProbeFlags.CLOCKS)
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this.relog((this.lastAddr() + clocks) | ProbeFlags.CLOCKS); // coalesce clocks
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else
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this.log(clocks | ProbeFlags.CLOCKS);
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}
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}
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logNewScanline() {
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this.log(ProbeFlags.SCANLINE);
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this.sl++;
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}
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logNewFrame() {
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this.log(ProbeFlags.FRAME);
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this.sl = 0;
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if (this.singleFrame) this.clear();
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}
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logExecute(address:number, SP:number) {
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// record stack pushes/pops (from last instruction)
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if (this.cur_sp !== SP) {
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if (SP < this.cur_sp) {
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this.log(ProbeFlags.SP_PUSH | SP);
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}
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if (SP > this.cur_sp) {
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this.log(ProbeFlags.SP_POP | SP);
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}
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this.cur_sp = SP;
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}
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this.log(address | ProbeFlags.EXECUTE);
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}
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logInterrupt(type:number) {
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this.log(type | ProbeFlags.INTERRUPT);
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}
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logValue(address:number, value:number, op:number) {
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this.log((address & 0xffff) | ((value & 0xff)<<16) | op);
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}
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logRead(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.MEM_READ);
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}
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logWrite(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.MEM_WRITE);
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}
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logIORead(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.IO_READ);
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}
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logIOWrite(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.IO_WRITE);
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}
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logVRAMRead(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.VRAM_READ);
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}
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logVRAMWrite(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.VRAM_WRITE);
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}
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logIllegal(address:number) {
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this.log(address | ProbeFlags.ILLEGAL);
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}
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logWait(address:number) {
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this.log(address | ProbeFlags.WAIT);
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}
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logDMARead(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.DMA_READ);
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}
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logDMAWrite(address:number, value:number) {
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this.logValue(address, value, ProbeFlags.DMA_WRITE);
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}
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countEvents(op : number) : number {
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var count = 0;
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for (var i=0; i<this.idx; i++) {
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if ((this.buf[i] & 0xff000000) == op)
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count++;
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}
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return count;
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}
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countClocks() : number {
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var count = 0;
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for (var i=0; i<this.idx; i++) {
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if ((this.buf[i] & 0xff000000) == ProbeFlags.CLOCKS)
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count += this.buf[i] & 0xffff;
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}
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return count;
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}
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}
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