mirror of
https://github.com/pkimpel/retro-b5500.git
synced 2026-02-11 10:55:09 +00:00
135 lines
4.4 KiB
HTML
135 lines
4.4 KiB
HTML
<!DOCTYPE html>
|
|
<head>
|
|
<title>B5500 Test Loader</title>
|
|
<meta name="Author" content="Paul Kimpel">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
|
|
<meta http-equiv="Content-Script-Type" content="text/javascript">
|
|
<meta http-equiv="Content-Style-Type" content="text/css">
|
|
<link id=defaultStyleSheet rel=stylesheet type="text/css" href="B5500DistributionAndDisplay.css">
|
|
|
|
<script src="../emulator/B5500SystemConfiguration.js"></script>
|
|
<script src="../emulator/B5500CentralControl.js"></script>
|
|
<script src="../emulator/B5500Processor.js"></script>
|
|
|
|
<script>
|
|
"use strict";
|
|
|
|
window.onload = function() {
|
|
var cc = new B5500CentralControl();
|
|
|
|
function store(addr, word) {
|
|
/* Stores a 48-bit word at the specified B5500 address.
|
|
Invalid addresses are ignored */
|
|
var modNr = addr >>> 12;
|
|
var modAddr = addr & 0x0FFF;
|
|
|
|
if (modNr < 8 && cc.MemMod[modNr]) {
|
|
cc.MemMod[modNr][modAddr] = word;
|
|
}
|
|
}
|
|
|
|
function fileLoader_onLoad(ev) {
|
|
/* Handle the onload event for an ArrayBuffer FileReader */
|
|
var addr = 0; // starting B5500 memory address
|
|
var buf = ev.target.result;
|
|
var bytes = buf.byteLength;
|
|
var data = new DataView(buf); // use DataView() to avoid problems with littleendians.
|
|
var power = 0x10000000000;
|
|
var word = 0;
|
|
var x = 0;
|
|
|
|
while (bytes > 6) {
|
|
store(addr, data.getUint32(x, false)*0x10000 + data.getUint16(x+4, false));
|
|
x += 6;
|
|
bytes -= 6;
|
|
if (++addr > 0x7FFF) {
|
|
break;
|
|
}
|
|
}
|
|
// Store any partial word that may be left
|
|
while (bytes > 0) {
|
|
word += data.getUint8(x, false)*power;
|
|
x++;
|
|
bytes--;
|
|
power /= 0x100;
|
|
}
|
|
store(addr, word);
|
|
document.getElementById("RunBtn").disabled = false;
|
|
alert("File loaded: " + buf.byteLength + " bytes, last addr = @" + addr.toString(8));
|
|
}
|
|
|
|
function fileSelector_onChange(ev) {
|
|
/* Handle the <input type=file> onchange event when a file is selected */
|
|
var f = ev.target.files[0];
|
|
var reader = new FileReader();
|
|
|
|
reader.onload = fileLoader_onLoad;
|
|
|
|
document.getElementById("RunBtn").disabled = true;
|
|
reader.readAsArrayBuffer(f);
|
|
}
|
|
|
|
function runBtn_onClick(ev) {
|
|
/* Driver to initiate Processor module */
|
|
|
|
cc.clear();
|
|
cc.loadTimer = null;
|
|
cc.LOFF = 0;
|
|
cc.P1.C = 0x10; // execute from address @20
|
|
cc.P1.access(0x30); // P = [C]
|
|
cc.P1.T = cc.fieldIsolate(cc.P, 0, 12);
|
|
cc.P1.TROF = 1;
|
|
cc.P1.L = 1; // advance L to the next syllable
|
|
|
|
// Now start scheduling P1 on the Javascript thread
|
|
cc.P1.procTime = new Date().getTime()*1000;
|
|
cc.P1.scheduler = setTimeout(cc.P1.schedule, 0);
|
|
}
|
|
|
|
function checkBrowser() {
|
|
/* Checks whether this browser can support the necessary stuff */
|
|
var missing = "";
|
|
|
|
if (!window.File) {missing += ", File"}
|
|
if (!window.FileReader) {missing += ", FileReader"}
|
|
if (!window.FileList) {missing += ", FileList"}
|
|
if (!window.Blob) {missing += ", Blob"}
|
|
if (!window.ArrayBuffer) {missing += ", ArrayBuffer"}
|
|
if (!window.DataView) {missing += ", DataView"}
|
|
|
|
if (missing.length == 0) {
|
|
return false;
|
|
} else {
|
|
alert("No can do... your browser does not support the following features:\n" + missing.substring(2));
|
|
return true;
|
|
}
|
|
}
|
|
|
|
/* Start of window.onload() */
|
|
if (checkBrowser()) {
|
|
return;
|
|
}
|
|
|
|
cc.powerOn();
|
|
|
|
document.getElementById("FileSelector").addEventListener("change", fileSelector_onChange, false);
|
|
document.getElementById("RunBtn").addEventListener("click", runBtn_onClick, false);
|
|
}
|
|
</script>
|
|
</head>
|
|
|
|
<body>
|
|
|
|
<div style="position:relative; width:100%">
|
|
<div style="position:absolute; left:0; top:0; width:auto">
|
|
retro-B5500 Test Loader
|
|
</div>
|
|
<div style="position:absolute; top:0; right:0; width:auto">
|
|
<input id=FileSelector type=file size=60>
|
|
|
|
<input id=RunBtn type=button value=Run disabled>
|
|
</div>
|
|
</div>
|
|
|
|
</body>
|
|
</html> |