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Add performance tests for 6502 implementations #42

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Add performance tests for 6502 implementations #42

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c4538d4
Create performance tests for CPU implementations
iflan Oct 18, 2020
fad720d
Add tscpu6502v6.ts from PR #40's cpu6502.ts
iflan Nov 8, 2020
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91 changes: 91 additions & 0 deletions bin/bin2js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,91 @@
#!/usr/bin/env node

const { exit } = require('process');

const readFile = require('fs').promises.readFile;
const argv = require('yargs').argv;

const fileName = argv._[0];
const name = argv.n || argv.name;
const start = argv.s !== undefined ? argv.s : argv.start;

function toHex(v, n) {
if (!n) {
n = 2
}
let r = v.toString(16);
r = r.padStart(n, '0');
return r;
}

function usage(message) {
if (message) {
console.error(message);
}
console.error("bin2js -n name -s start binfile");
}

if (argv.h || argv.help) {
usage();
process.exit(0);
}
if (!name || !fileName || (typeof name != "string")) {
usage("must specify a file name for binfile");
process.exit(1);
}

if (start === "" || start === undefined) {
usage("must specify a start page");
process.exit(2);
}

if (typeof start === "string") {
if (start.startsWith("0x")) {
start = parseInt(start.slice(2), 16);
} else {
start = parseInt(start, 10);
}
}

readFile(fileName, { flag: 'r' }).then((fileData => {
if (fileData.length % 256 != 0) {
console.error(`${filename} length is not a multiple of 256`);
process.exit(2);
}
let end = start + fileData.length / 256 - 1;
console.log('const MEMORY = [');
const step = 0x08;
for (let i = 0; i < fileData.length; i += step) {
let line = ' ';
for (let j = i; j < fileData.length && j < i + step; j++) {
line += '0x' + toHex(fileData[j]) + ', ';
}
line += '// ' + toHex(i, 4);
console.log(line);
}
console.log('];');
console.log();
console.log(`export default function ${name}() {`);
console.log(' let mem = [...MEMORY];');
console.log(' return {');
console.log(' start: function() {');
console.log(` return 0x${toHex(start)};`);
console.log(' },');
console.log(' end: function() {');
console.log(` return 0x${toHex(end)};`);
console.log(' },');
console.log(' read: function(page, off) {');
console.log(` return mem[(page - 0x${toHex(start)}) << 8 | off];`);
console.log(' },');
console.log(' write: function(page, off, val) {');
console.log(` mem[(page - 0x${toHex(start)}) << 8 | off] = val;`);
console.log(' },');
console.log(' reset: function() {');
console.log(' mem = [...MEMORY];');
console.log(' },');
console.log(' };');
console.log('}');
})).catch((reason) => {
console.error('Unable to read binary file:', reason);
process.exit(1);
});
80 changes: 80 additions & 0 deletions test/perf/cpu_benchmark.html
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<!DOCTYPE html>
<html>

<head>
<title>Benchmark for 6502</title>
<script async="false" type="module" src="/dist/cpu_benchmark.js"></script>
<script>
window.addEventListener('load', async (e) => {
await window.benchmark();
console.log('done');
});
</script>
<style>
table {
border-collapse: collapse;
empty-cells: hide;
}

tr.bottom-header {
border-bottom: 2px solid black;
}

th.right-header {
border-right: 2px solid black;
border-top: 1px solid gray;
}

td {
text-align: right;
border-top: 1px solid gray;
padding: 4px 10px;
}

</style>
</head>

<body>
<h1>Benchmark for 6502</h1>

<table id="benchmarks">
<thead>
<tr id="impl">
<th></th>
<th colspan="2">cpu6502.js</th>
</tr>
<tr class="bottom-header" id="emul">
<th></th>
<th>6502</th>
<th>65C02</th>
</tr>
</thead>
<tr id="min">
<th class="right-header">min</th>
<td id="min_js_6502"></td>
<td id="min_js_65C02"></td>
</tr>
<tr id="max">
<th class="right-header">max</th>
<td id="max_js_6502"></td>
<td id="max_js_65C02"></td>
</tr>
<tr id="mean">
<th class="right-header">mean</th>
<td id="mean_js_6502"></td>
<td id="mean_js_65C02"></td>
</tr>
<tr id="median">
<th class="right-header">median</th>
<td id="median_js_6502"></td>
<td id="median_js_65C02"></td>
</tr>
<tr id="runs">
<th class="right-header">runs</th>
<td id="runs_js_6502"></td>
<td id="runs_js_65C02"></td>
</tr>
</table>
</body>

</html>
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