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jsTEKTRONIX4051_universal.html
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<html>
<head>
<meta charset="UTF-8">
<TITLE>jsTEKTRONIX4051 - A Tektronix 4051 emulator written in Javascript. Copyright (c) 2015 David E. Roberts.</TITLE>
<link rel='stylesheet' href='styleSheet.css' type='text/css' charset='utf-8'>
<script src="mc6800.js" language="JavaScript"></script>
<script src="Tek4051Rom.js" language="JavaScript"></script>
<script src="TekDisplay.js" language="JavaScript"></script>
<script src="TekKeyboard.js" language="JavaScript"></script>
<script src="TEKTRONIX4051.js" language="JavaScript"></script>
<script src="Storage.js" language="JavaScript"></script>
<script src="JSZip.js" language="JavaScript"></script>
<script src="RomExp.js" language="JavaScript"></script>
</head>
<body onload="tek_init();">
<div id="container">
<div id="storage" hidden="true">
<p><b>File information:</b></p>
<div id="fileInfoCtrls">
Select: <select id="fileList" class="storestyle1" onchange="storage.loadFile();"></select> 
Type: <select id="fileType" class="storestyle1" onchange="storage.changeType();">
<option value="">None</option>
<option value="A">Ascii</option>
<option value="B">Binary</option>
<option value="N">New</option>
<option value="L">Last</option>
</select> 
Usage: <select id="fileUsage" class="storestyle1" onchange="storage.changeUsage();">
<option value="">None</option>
<option value="P">Program</option>
<option value="D">Data</option>
<option value="L">Log</option>
<option value="T">Text</option>
</select> 
Size: <input type="text" id="fileSize" class="storestyle1" disabled></input>
</div>
<div id="fileWindow">
<p><b>File content viewer:</b> [<SPAN id="fname">Drop a file to this window</SPAN>]</p>
<p>
<textarea id="fileViewer" rows="25" cols="74" ondrop="storage.dropHandler(event, storage);" ondragover="storage.dragOverHandler(event);" readonly></textarea><BR>
</p>
</div>
<div id="storebtns1">
<input type="button" class="storebtn" value="Save" onClick="storage.saveFile();"></input>
<input type="button" class="storebtn" value="Load" onClick="storage.loadFile();"></input>
<input type="button" class="storebtn" value="Clear" onClick="storage.clearView();"></input>
<input type="button" class="storebtn" value="DelFile" onClick="storage.deleteFile();"></input>
<input type="button" class="storebtn" value="DelALL" onClick="storage.deleteAll();"></input>
</div>
<div id="savefnum">
F#:
<input type="text" class="storestyle1" id="fileNum"></input>
Desc:
<input type="text" class="storestyle1" id="fileDesc" onKeyDown="storage.fdLimit();"></input>
</div>
<div id="storebtns3">
<input type="button" class="storebtn" value="Select" onClick="storage.selectTekFile();"></input>
<input type="button" class="storebtn" value="Cancel" onClick="storage.closeStorage();"></input>
</div>
<div id="importCtrls">
<input type="button" class="storebtn" value="Export" onClick="storage.storageAdm(0);"></input>
<input type="button" class="storebtn" value="Import" onClick="storage.storageAdm(1);"></input>
<input type="file" id="importObj" onchange="storage.importObject(storage);" hidden="true"></input>
<select id="importType" class="storestyle1">
<option>Single file</option>
<option>Storage Archive</option>
<option>4050 Tape Emulator files</option>
</select>
</div>
</div>
<div class="inline">
<!-- NOTE: Canvas size set here is used by emulator for pixel locations, but is scaled down in CSS -->
<canvas id="screen" name="screen" width="1046" height="830"> </canvas>
</div>
<div class="inline">
<div class="status" id="status_busy">BUSY</div>
<div class="status" id="status_break">BREAK</div>
<div class="status" id="status_io">I/O</div>
<div class="status" id="status_power">POWER</div>
</div>
<div id="keyboard">
<div class="inlinekeys">
<table class="keys">
<tr><td>11</td><td>12</td><td>13</td><td>14</td><td>15</td></tr>
<tr>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0060);"
onmouseup="tek.fcnkey_release(0x0060);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0061);"
onmouseup="tek.fcnkey_release(0x0061);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0062);"
onmouseup="tek.fcnkey_release(0x0062);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0063);"
onmouseup="tek.fcnkey_release(0x0063);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0064);"
onmouseup="tek.fcnkey_release(0x0064);" /></td></tr>
<tr><td>1</td><td>2</td><td>3</td><td>4</td><td>5</td></tr>
<tr><td colspan="5"><div class="centerline"><div><span>USER DEFINABLE</span></div></div></td></tr>
<tr><td>16</td><td>17</td><td>18</td><td>19</td><td>20</td></tr>
<tr>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0065);"
onmouseup="tek.fcnkey_release(0x0065);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0066);"
onmouseup="tek.fcnkey_release(0x0066);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0067);"
onmouseup="tek.fcnkey_release(0x0067);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0068);"
onmouseup="tek.fcnkey_release(0x0068);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0069);"
onmouseup="tek.fcnkey_release(0x0069);" /></td></tr>
<tr><td>6</td><td>7</td><td>8</td><td>9</td><td>10</td></tr>
</table>
</div>
<div class="inlinekeys">
<table class="keys">
<tr><td class="wider">COMPRESS</td><td class="wider">RUB OUT<br>←</td><td class="wider">RUB OUT<br>→</td>
<td class="wider">REPRINT</td><td class="wider">RECALL<br>NEXT LINE</td><td></td><td></td></tr>
<tr>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0070);"
onmouseup="tek.fcnkey_release(0x0070);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0071);"
onmouseup="tek.fcnkey_release(0x0071);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0072);"
onmouseup="tek.fcnkey_release(0x0072);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0073);"
onmouseup="tek.fcnkey_release(0x0073);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0074);"
onmouseup="tek.fcnkey_release(0x0074);" /></td>
<tr><td class="wider">EXPAND</td><td class="wider">BACK<br>SPACE</td><td class="wider">SPACE</td>
<td class="wider">CLEAR</td><td class="wider">RECALL<br>LINE</td></tr>
<tr><td colspan="5"><div class="centerline"><div><span>LINE EDITOR</span></div></div></td></tr>
</table>
</div>
<div class="inlinekeys">
<table class="keys">
<tr>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0075);"
onmouseup="tek.fcnkey_release(0x0075);" /></td>
<td><div class="key" onmousedown="tek.fcnkey_press(0x0076);"
onmouseup="tek.fcnkey_release(0x0076);" /></td>
<td><div class="key" onmousedown="tek.execute_copy();" /></td></tr>
<tr><td class="wider">AUTO<br>NUMBER</td><td class="wider">STEP<br>PROGRAM</td><td class="wider">MAKE<br>COPY</td></tr>
</table>
</div>
</div>
<br>
<div class="inline">
<div>
<table class="keys"><tr>
<td><div class="kbkey" onmousedown="tek.fcnkey_press(0x006A);"
onmouseup="tek.fcnkey_release(0x006A);">HOME<br>PAGE</div></td>
<td><div class="kbkey" onmousedown="tek.fcnkey_press(0x005E);"
onmouseup="tek.fcnkey_release(0x005E);">~<br>^</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0031);"
onmouseup="tek.fcnkey_release(0x0031);">!<br>1</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0032);"
onmouseup="tek.fcnkey_release(0x0032);">"<br>2</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0033);"
onmouseup="tek.fcnkey_release(0x0033);">#<br>3</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0034);"
onmouseup="tek.fcnkey_release(0x0034);">$<br>4</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0035);"
onmouseup="tek.fcnkey_release(0x0035);">%<br>5</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0036);"
onmouseup="tek.fcnkey_release(0x0036);">&<br>6</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0037);"
onmouseup="tek.fcnkey_release(0x0037);">'<br>7</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0038);"
onmouseup="tek.fcnkey_release(0x0038);">(<br>8</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0039);"
onmouseup="tek.fcnkey_release(0x0039);">)<br>9</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x0030);"
onmouseup="tek.fcnkey_release(0x0030);">0</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x00C0);"
onmouseup="tek.fcnkey_release(0x00C0);">`<br>@</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x003A);"
onmouseup="tek.fcnkey_release(0x003A);">*<br>:</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x003B);"
onmouseup="tek.fcnkey_release(0x003B);">+<br>;</div></td>
<td><div class="kbkeylight" onmousedown="tek.fcnkey_press(0x003D);"
onmouseup="tek.fcnkey_release(0x003D);">=<br>-</div></td>
<td><div class="kbkey" onmousedown="tek.fcnkey_press(0x005F);"
onmouseup="tek.fcnkey_release(0x005F);">RUB<br>OUT</div></td>
<td><div class="kbkeybreak" onmousedown="tek.fcnkey_press(0x006B);"
onmouseup="tek.fcnkey_release(0x006B);">BREAK</div></td></tr>
<tr><td colspan="18"><div class="centerline"><div><span>Tektronix Keys</span></div></div></td></tr>
<tr><td colspan="18"><br>
<input id="start" class="mainbtn" value="▶ start" onclick="javascript:tek_start();" type="button">
<input id="stop" class="mainbtn" value="▣ pause" disabled="true" onclick="javascript:tek_stop();" type="button">
<input id="reset" class="mainbtn" value="⎌ reset" onclick="javascript:tek_reset();" type="button">
<input id="mutespkr" class="mainbtn" value="♫ mute" onClick="toggleAudioStatus();" type="button" >
<input id="storeopts" class="mainbtn" value="⎘ storage" disabled="true" onClick="storage.showStorageOptions();" type="button" >
</td>
</tr></table>
</div>
</div>
</div>
<script language="JavaScript">
var tek;
var storage = new Storage();
//var audioOn = true;
//var osc;
//var ctx;
function startCtx(){
window.AudioContext = window.AudioContext || window.webkitAudioContext;
ctx = ctx.createOscillator();
osc.type = "sine";
osc.frequency.value = 261.63;
}
function stopCtx(){
ctx = "";
}
function startOsc(){
if (ctx) {
osc.start(0);
osc.connect(ctx.destination);
}
}
function stopOsc(){
osc.stop(0);
}
function tek_init() {
var canvas = document.getElementById('screen');
tek = new TEKTRONIX4051( window, canvas );
} // End of function tek_init.
function tek_start() {
tek.execute_start.apply( tek );
document.getElementById('start').disabled = true;
document.getElementById('stop').disabled = false;
document.getElementById('storeopts').disabled = false;
document.getElementById('status_power').style.color = "#00EE00";
document.getElementById('start').blur();
} // End of function tek_start.
function tek_stop() {
tek.execute_stop.apply( tek );
document.getElementById('start').disabled = false;
document.getElementById('stop').disabled = true;
document.getElementById('storeopts').disabled = true;
document.getElementById('status_power').style.color = "#005500";
} // End of function tek_stop.
function tek_reset() {
tek.execute_reset.call( tek );
} // End of function tek_reset.
// Obtains data from a file
function tek_load() {
// See what file has been selected by the user (if any).
var file = document.getElementById('loadfile').files[0];
// Ignore if no file has been selected by the user.
if( !file )
return;
// Create a new instance of the FileReader to actually read the selected file.
var fread = new FileReader();
// This is the function invoked after a successful file load.
fread.onload = function( levent ) {
upload_to_tek(levent.target.result);
} // End of function fread.onload.
// Initiate the file load.
fread.readAsArrayBuffer( file );
} // End of function tek_load.
// Uploads data to the Tek
function upload_to_tek(buffer) {
var bytes = new Uint8Array(buffer);
var j = bytes.length;
if (j > 0){
// Load the program into Tek memory
tek.execute_load.call( tek, j, bytes ); // Source and destination data length may be different.
}else{
// If array is empty force a NO PRORGAM FOUND (error 69) to prevent BUSY hang
upload_to_tek_fail();
}
}
// Force a NO PRORGAM FOUND (error 69) to prevent BUSY hang
function upload_to_tek_fail() {
var bytes = new Uint8Array([0xFF]);
j = 1;
tek.execute_load.call( tek, j, bytes );
}
function toggleAudioStatus(){
mutebtn = document.getElementById('mutespkr');
tek.audioOn = !tek.audioOn;
if (tek.audioOn) {
mutebtn.value = "♫ mute";
window.AudioContext = window.AudioContext || window.webkitAudioContext;
}else{
mutebtn.value = "‼ mute";
}
}
/*
function startOsc(){
if (tek.audioOn) {
// window.AudioContext = window.AudioContext || window.webkitAudioContext;
ctx = new AudioContext();
osc = ctx.createOscillator();
osc.type = "sine";
osc.frequency.value = 261.63;
osc.start(0);
osc.connect(ctx.destination);
}
}
function stopOsc(){
if (tek.audioOn) {
osc.stop(0);
}
}
*/
</script>
</body>
</html>