app-bench.js

"use strict";

import { fake6502 } from "./fake6502.js";
import * as models from "./models.js";
import * as disc from "./fdc.js";

function benchmarkCpu(cpu, numCycles) {
    numCycles = numCycles || 10 * 1000 * 1000;
    console.log("Benchmarking over " + numCycles + " cpu cycles");
    const startTime = Date.now();
    cpu.execute(numCycles);
    const endTime = Date.now();
    const msTaken = endTime - startTime;
    const virtualMhz = numCycles / msTaken / 1000;
    console.log("Took " + msTaken + "ms to execute " + numCycles + " cycles");
    console.log("Virtual " + virtualMhz.toFixed(2) + "MHz");
}

async function main() {
    const discName = "elite";
    const cpu = fake6502(models.findModel("B"));
    await cpu.initialise();
    const data = await disc.load("discs/" + discName + ".ssd");
    cpu.fdc.loadDisc(0, disc.discFor(cpu.fdc, discName, data));
    cpu.sysvia.keyDown(16);
    cpu.execute(10 * 1000 * 1000);
    cpu.sysvia.keyUp(16);
    benchmarkCpu(cpu, 100 * 1000 * 1000);
}

main().then(() => {});