mirror of
https://github.com/sehugg/8bitworkshop.git
synced 2025-01-18 09:30:11 +00:00
310 lines
8.9 KiB
TypeScript
310 lines
8.9 KiB
TypeScript
|
|
import { Platform, EmuState, EmuControlsState, EmuRecorder } from "./baseplatform";
|
|
import { getNoiseSeed, setNoiseSeed } from "./emu";
|
|
|
|
// RECORDER
|
|
|
|
type FrameRec = {controls:EmuControlsState, seed:number};
|
|
|
|
export class StateRecorderImpl implements EmuRecorder {
|
|
|
|
checkpointInterval : number = 10;
|
|
callbackStateChanged : () => void;
|
|
callbackNewCheckpoint : (state:EmuState) => void;
|
|
maxCheckpoints : number = 300;
|
|
|
|
platform : Platform;
|
|
checkpoints : EmuState[];
|
|
framerecs : FrameRec[];
|
|
frameCount : number;
|
|
lastSeekFrame : number;
|
|
lastSeekStep : number;
|
|
lastStepCount : number;
|
|
|
|
constructor(platform : Platform) {
|
|
this.reset();
|
|
this.platform = platform;
|
|
}
|
|
|
|
reset() {
|
|
this.checkpoints = [];
|
|
this.framerecs = [];
|
|
this.frameCount = 0;
|
|
this.lastSeekFrame = 0;
|
|
this.lastSeekStep = 0;
|
|
this.lastStepCount = 0;
|
|
if (this.callbackStateChanged) this.callbackStateChanged();
|
|
}
|
|
|
|
frameRequested() : boolean {
|
|
var controls = {
|
|
controls:this.platform.saveControlsState(),
|
|
seed:getNoiseSeed()
|
|
};
|
|
var requested = false;
|
|
// are we replaying? then we don't need to save a frame, just replace controls
|
|
if (this.lastSeekFrame < this.frameCount) {
|
|
this.loadControls(this.lastSeekFrame);
|
|
} else {
|
|
// record the control state, if available
|
|
if (this.platform.saveControlsState) {
|
|
this.framerecs.push(controls);
|
|
}
|
|
// time to save next frame?
|
|
requested = (this.frameCount++ % this.checkpointInterval) == 0;
|
|
}
|
|
this.lastSeekFrame++;
|
|
this.lastSeekStep = 0;
|
|
if (this.callbackStateChanged) this.callbackStateChanged();
|
|
return requested;
|
|
}
|
|
|
|
numFrames() : number {
|
|
return this.frameCount;
|
|
}
|
|
|
|
currentFrame() : number {
|
|
return this.lastSeekFrame;
|
|
}
|
|
|
|
currentStep() : number {
|
|
return this.lastSeekStep;
|
|
}
|
|
|
|
recordFrame(state : EmuState) {
|
|
this.checkpoints.push(state);
|
|
if (this.callbackNewCheckpoint) this.callbackNewCheckpoint(state);
|
|
// checkpoints full?
|
|
if (this.checkpoints.length > this.maxCheckpoints) {
|
|
this.checkpoints.shift(); // remove 1st checkpoint
|
|
this.framerecs = this.framerecs.slice(this.checkpointInterval);
|
|
this.lastSeekFrame -= this.checkpointInterval;
|
|
this.frameCount -= this.checkpointInterval;
|
|
if (this.callbackStateChanged) this.callbackStateChanged();
|
|
}
|
|
}
|
|
|
|
getStateAtOrBefore(frame : number) : {frame : number, state : EmuState} {
|
|
// initial frame?
|
|
if (frame <= 0 && this.checkpoints.length > 0)
|
|
return {frame:0, state:this.checkpoints[0]};
|
|
|
|
var bufidx = Math.floor(frame / this.checkpointInterval);
|
|
var foundidx = bufidx < this.checkpoints.length ? bufidx : this.checkpoints.length-1;
|
|
var foundframe = foundidx * this.checkpointInterval;
|
|
return {frame:foundframe, state:this.checkpoints[foundidx]};
|
|
}
|
|
|
|
loadFrame(seekframe : number, seekstep? : number) : number {
|
|
seekframe |= 0;
|
|
seekstep |= 0;
|
|
if (seekframe == this.lastSeekFrame && seekstep == this.lastSeekStep) {
|
|
return seekframe; // already set to this frame
|
|
}
|
|
// TODO: what if < 1?
|
|
let {frame,state} = this.getStateAtOrBefore(seekframe-1);
|
|
if (state) {
|
|
var numSteps = 0;
|
|
this.platform.pause();
|
|
this.platform.loadState(state);
|
|
// seek to frame index
|
|
while (frame < seekframe) {
|
|
if (frame < this.framerecs.length) {
|
|
this.loadControls(frame);
|
|
}
|
|
frame++;
|
|
numSteps = this.platform.advance(frame < seekframe); // TODO: infinite loop?
|
|
}
|
|
// TODO: if first frame, we must figure out # of steps
|
|
if (frame == 0) {
|
|
numSteps = this.platform.advance(true);
|
|
this.platform.loadState(state);
|
|
}
|
|
// seek to step index
|
|
// TODO: what if advance() returns clocks, but steps use insns?
|
|
if (seekstep > 0 && this.platform.advanceFrameClock) {
|
|
seekstep = this.platform.advanceFrameClock(null, seekstep);
|
|
}
|
|
// record new values
|
|
this.lastSeekFrame = seekframe;
|
|
this.lastSeekStep = seekstep;
|
|
this.lastStepCount = numSteps;
|
|
return seekframe;
|
|
} else {
|
|
return -1;
|
|
}
|
|
}
|
|
|
|
loadControls(frame : number) {
|
|
if (this.platform.loadControlsState)
|
|
this.platform.loadControlsState(this.framerecs[frame].controls);
|
|
setNoiseSeed(this.framerecs[frame].seed);
|
|
}
|
|
|
|
getLastCheckpoint() : EmuState {
|
|
return this.checkpoints.length && this.checkpoints[this.checkpoints.length-1];
|
|
}
|
|
}
|
|
|
|
/////
|
|
|
|
import { Probeable, ProbeAll } from "./devices";
|
|
|
|
export enum ProbeFlags {
|
|
CLOCKS = 0x00000000,
|
|
EXECUTE = 0x01000000,
|
|
HAS_VALUE = 0x10000000,
|
|
MEM_READ = 0x12000000,
|
|
MEM_WRITE = 0x13000000,
|
|
IO_READ = 0x14000000,
|
|
IO_WRITE = 0x15000000,
|
|
VRAM_READ = 0x16000000,
|
|
VRAM_WRITE= 0x17000000,
|
|
INTERRUPT = 0x08000000,
|
|
ILLEGAL = 0x09000000,
|
|
SP_PUSH = 0x0a000000,
|
|
SP_POP = 0x0b000000,
|
|
SCANLINE = 0x7e000000,
|
|
FRAME = 0x7f000000,
|
|
}
|
|
|
|
class ProbeFrame {
|
|
data : Uint32Array;
|
|
len : number;
|
|
}
|
|
|
|
export class ProbeRecorder implements ProbeAll {
|
|
|
|
m : Probeable; // machine to probe
|
|
buf : Uint32Array; // buffer
|
|
idx : number = 0; // index into buffer
|
|
sl : number = 0; // scanline
|
|
cur_sp = -1; // last stack pointer
|
|
singleFrame : boolean = true; // clear between frames
|
|
|
|
constructor(m:Probeable, buflen?:number) {
|
|
this.m = m;
|
|
this.reset(buflen || 0x100000);
|
|
}
|
|
start() {
|
|
this.m.connectProbe(this);
|
|
}
|
|
stop() {
|
|
this.m.connectProbe(null);
|
|
}
|
|
reset(newbuflen? : number) {
|
|
if (newbuflen) this.buf = new Uint32Array(newbuflen);
|
|
this.sl = 0;
|
|
this.cur_sp = -1;
|
|
this.clear();
|
|
}
|
|
clear() {
|
|
this.idx = 0;
|
|
}
|
|
logData(a:number) {
|
|
this.log(a);
|
|
}
|
|
log(a:number) {
|
|
// TODO: coalesce READ and EXECUTE and PUSH/POP
|
|
if (this.idx >= this.buf.length) return;
|
|
this.buf[this.idx++] = a;
|
|
}
|
|
relog(a:number) {
|
|
this.buf[this.idx-1] = a;
|
|
}
|
|
lastOp() {
|
|
if (this.idx > 0)
|
|
return this.buf[this.idx-1] & 0xff000000;
|
|
else
|
|
return -1;
|
|
}
|
|
lastAddr() {
|
|
if (this.idx > 0)
|
|
return this.buf[this.idx-1] & 0xffffff;
|
|
else
|
|
return -1;
|
|
}
|
|
addLogBuffer(src: Uint32Array) {
|
|
if (this.idx + src.length > this.buf.length) {
|
|
src = src.slice(0, this.buf.length - this.idx);
|
|
}
|
|
this.buf.set(src, this.idx);
|
|
this.idx += src.length;
|
|
}
|
|
logClocks(clocks:number) {
|
|
clocks |= 0;
|
|
if (clocks > 0) {
|
|
if (this.lastOp() == ProbeFlags.CLOCKS)
|
|
this.relog((this.lastAddr() + clocks) | ProbeFlags.CLOCKS); // coalesce clocks
|
|
else
|
|
this.log(clocks | ProbeFlags.CLOCKS);
|
|
}
|
|
}
|
|
logNewScanline() {
|
|
this.log(ProbeFlags.SCANLINE);
|
|
this.sl++;
|
|
}
|
|
logNewFrame() {
|
|
this.log(ProbeFlags.FRAME);
|
|
this.sl = 0;
|
|
if (this.singleFrame) this.clear();
|
|
}
|
|
logExecute(address:number, SP:number) {
|
|
// record stack pushes/pops (from last instruction)
|
|
if (this.cur_sp !== SP) {
|
|
if (SP < this.cur_sp) {
|
|
this.log(ProbeFlags.SP_PUSH | SP);
|
|
}
|
|
if (SP > this.cur_sp) {
|
|
this.log(ProbeFlags.SP_POP | SP);
|
|
}
|
|
this.cur_sp = SP;
|
|
}
|
|
this.log(address | ProbeFlags.EXECUTE);
|
|
}
|
|
logInterrupt(type:number) {
|
|
this.log(type | ProbeFlags.INTERRUPT);
|
|
}
|
|
logValue(address:number, value:number, op:number) {
|
|
this.log((address & 0xffff) | ((value & 0xff)<<16) | op);
|
|
}
|
|
logRead(address:number, value:number) {
|
|
this.logValue(address, value, ProbeFlags.MEM_READ);
|
|
}
|
|
logWrite(address:number, value:number) {
|
|
this.logValue(address, value, ProbeFlags.MEM_WRITE);
|
|
}
|
|
logIORead(address:number, value:number) {
|
|
this.logValue(address, value, ProbeFlags.IO_READ);
|
|
}
|
|
logIOWrite(address:number, value:number) {
|
|
this.logValue(address, value, ProbeFlags.IO_WRITE);
|
|
}
|
|
logVRAMRead(address:number, value:number) {
|
|
this.logValue(address, value, ProbeFlags.VRAM_READ);
|
|
}
|
|
logVRAMWrite(address:number, value:number) {
|
|
this.logValue(address, value, ProbeFlags.VRAM_WRITE);
|
|
}
|
|
logIllegal(address:number) {
|
|
this.log(address | ProbeFlags.ILLEGAL);
|
|
}
|
|
countEvents(op : number) : number {
|
|
var count = 0;
|
|
for (var i=0; i<this.idx; i++) {
|
|
if ((this.buf[i] & 0xff000000) == op)
|
|
count++;
|
|
}
|
|
return count;
|
|
}
|
|
countClocks() : number {
|
|
var count = 0;
|
|
for (var i=0; i<this.idx; i++) {
|
|
if ((this.buf[i] & 0xff000000) == ProbeFlags.CLOCKS)
|
|
count += this.buf[i] & 0xffff;
|
|
}
|
|
return count;
|
|
}
|
|
|
|
}
|