2020-03-05 23:36:30 -05:00
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<!doctype html>
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<html>
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<head>
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2020-03-06 09:15:26 -05:00
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<meta charset="utf-8">
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<style>
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body {
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2020-03-06 10:52:53 -05:00
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border: 0;
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2020-03-06 09:15:26 -05:00
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font-family: monospace;
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2020-03-06 10:52:53 -05:00
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font-size: 14px;
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}
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2020-03-06 11:40:54 -05:00
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hr {
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border-top: #ccc solid 1px;
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2020-03-06 10:52:53 -05:00
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p, pre {
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margin: 0;
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padding: 0;
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line-height: 20px;
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}
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.switch {
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margin: 0 13px 0 0;
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padding: 0;
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}
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.comments {
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font-size: 11px;
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color: #666;
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line-height: 14px;
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}
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2020-03-06 09:15:26 -05:00
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</style>
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2020-03-05 23:36:30 -05:00
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</head>
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2020-03-06 09:15:26 -05:00
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<body>
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<h2>Text-mode Altair 8800 simulator</h2>
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<hr>
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<p>
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2020-03-06 10:52:53 -05:00
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<input type="button" value="POWER ON" onclick="powerOn();">
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<input type="button" value="POWER OFF" onclick="powerOff();">
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<input type="button" value="RUN" onclick="run();">
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<input type="button" value="STOP" onclick="stop();">
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2020-03-06 10:52:53 -05:00
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<input type="button" value="SINGLE STEP" onclick="singleStep();">
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</p>
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<p>
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<input type="button" value="EXAMINE" onclick="examine();">
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<input type="button" value="EXAMINE NEXT" onclick="examineNext();">
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<input type="button" value="DEPOSIT" onclick="deposit();">
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<input type="button" value="DEPOSIT NEXT" onclick="depositNext();">
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<input type="button" value="RESET" onclick="reset();">
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<input type="button" value="CLR" disabled>
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</p>
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<p>
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<input type="button" value="PROTECT" disabled>
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<input type="button" value="UNPROTECT" disabled>
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<input type="button" value="AUX" disabled>
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<input type="button" value="AUX" disabled>
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2020-03-06 09:15:26 -05:00
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</p>
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<hr>
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2020-03-06 11:40:54 -05:00
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<p>
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<input id="data" type="text" size="60">
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<input type="button" value="LOAD DATA" onclick="loadData();">
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</p>
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<pre class="comments">
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Examples - binary data of simple programs:
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db ff d3 ff c3 00 00 // Switch echo between A2 and A1.
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3e 8c d3 ff 0f c3 02 00 // Pattern shift.</pre>
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<hr>
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2020-03-06 09:15:26 -05:00
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<p>LEDs: <!-- ● - on. ○ - off. -->
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2020-03-06 10:52:53 -05:00
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<div id="status-leds">
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<p>
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INTE <span class="led">○</span>
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PROT <span class="led">○</span>
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MEMR <span id="memr-led" class="led">○</span>
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INP <span class="led">○</span>
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MI <span id="mi-led" class="led">○</span>
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2020-03-06 10:52:53 -05:00
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OUT <span class="led">○</span>
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HLTA <span class="led">○</span>
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STACK <span class="led">○</span>
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WO <span id="wo-led" class="led">○</span>
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2020-03-06 10:52:53 -05:00
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INT <span class="led">○</span>
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</p>
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</div>
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<div id="wait-leds">
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<p>
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WAIT <span id="wait-led" class="led">○</span>
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2020-03-06 10:52:53 -05:00
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HLDA <span class="led">○</span>
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</p>
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</div>
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2020-03-06 09:15:26 -05:00
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<div id="data-leds">
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<p>
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D7 D6 D5 D4 D3 D2 D1 D0<br>
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<span id="d7" class="led">○</span>
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<span id="d6" class="led">○</span>
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<span id="d5" class="led">○</span>
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<span id="d4" class="led">○</span>
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<span id="d3" class="led">○</span>
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<span id="d2" class="led">○</span>
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<span id="d1" class="led">○</span>
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<span id="d0" class="led">○</span>
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</p>
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</div>
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<div id="address-leds">
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<p>
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A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0<br>
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<span id="a15" class="led">○</span>
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<span id="a14" class="led">○</span>
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<span id="a13" class="led">○</span>
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<span id="a12" class="led">○</span>
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<span id="a11" class="led">○</span>
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<span id="a10" class="led">○</span>
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<span id="a9" class="led">○</span>
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<span id="a8" class="led">○</span>
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<span id="a7" class="led">○</span>
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<span id="a6" class="led">○</span>
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<span id="a5" class="led">○</span>
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<span id="a4" class="led">○</span>
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<span id="a3" class="led">○</span>
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<span id="a2" class="led">○</span>
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<span id="a1" class="led">○</span>
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<span id="a0" class="led">○</span>
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</p>
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</div>
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2020-03-06 10:52:53 -05:00
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<div id="switches">
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<p>
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<input type="checkbox" id="s15" class="switch" value="">
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<input type="checkbox" id="s14" class="switch" value="">
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<input type="checkbox" id="s13" class="switch" value="">
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<input type="checkbox" id="s12" class="switch" value="">
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<input type="checkbox" id="s11" class="switch" value="">
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<input type="checkbox" id="s10" class="switch" value="">
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<input type="checkbox" id="s9" class="switch" value="">
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<input type="checkbox" id="s8" class="switch" value="">
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<input type="checkbox" id="s7" class="switch" value="">
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<input type="checkbox" id="s6" class="switch" value="">
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<input type="checkbox" id="s5" class="switch" value="">
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<input type="checkbox" id="s4" class="switch" value="">
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<input type="checkbox" id="s3" class="switch" value="">
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<input type="checkbox" id="s2" class="switch" value="">
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<input type="checkbox" id="s1" class="switch" value="">
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<input type="checkbox" id="s0" class="switch" value="">
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</p>
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</div>
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2020-03-06 09:15:26 -05:00
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</p>
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<hr>
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<p>CPU dump:
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<div id="cpu"></div>
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</p>
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2020-03-05 23:36:30 -05:00
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2020-03-06 09:15:26 -05:00
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<hr>
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2020-03-06 00:06:47 -05:00
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2020-03-06 09:15:26 -05:00
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<p>Memory dump:
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<div id="mem"></div>
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</p>
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2020-03-05 23:36:30 -05:00
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<script src="js/8080.js"></script>
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<script src="js/sim8800.js"></script>
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<script>
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2020-03-06 10:20:38 -05:00
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function setAddressLedsCallback(bits) {
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for (let i = 0; i < bits.length; i++) {
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var ledElem = document.getElementById('a' + i);
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ledElem.innerHTML = bits[i] ? '●' : '○';
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}
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}
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function setDataLedsCallback(bits) {
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for (let i = 0; i < bits.length; i++) {
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var ledElem = document.getElementById('d' + i);
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ledElem.innerHTML = bits[i] ? '●' : '○';
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}
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}
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2020-03-06 10:52:53 -05:00
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function setWaitLedCallback(isRunning) {
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var ledElem = document.getElementById('wait-led');
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ledElem.innerHTML = isRunning ? '○' : '●';
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}
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2020-03-06 11:11:13 -05:00
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function setStatusLedsCallback(isPoweredOn) {
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var ledElems = [
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document.getElementById('memr-led'),
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document.getElementById('mi-led'),
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document.getElementById('wo-led')
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];
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for (let i = 0; i < ledElems.length; i++) {
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ledElems[i].innerHTML = isPoweredOn ? '●' : '○';
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}
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}
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2020-03-06 11:20:04 -05:00
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function dumpCpuCallback(dumpHtml) {
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var dumpCpuElem = document.getElementById('cpu');
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dumpCpuElem.innerHTML = dumpHtml;
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}
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function dumpMemCallback(dumpHtml) {
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var dumpMemElem = document.getElementById('mem');
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dumpMemElem.innerHTML = dumpHtml;
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}
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2020-03-06 09:15:26 -05:00
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var sim = new Sim8800(256, 1000000,
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setAddressLedsCallback, setDataLedsCallback,
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setWaitLedCallback, setStatusLedsCallback,
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dumpCpuCallback, dumpMemCallback);
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2020-03-06 09:15:26 -05:00
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2020-03-06 11:11:13 -05:00
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function powerOn() {
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sim.powerOn();
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2020-03-06 09:15:26 -05:00
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}
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2020-03-06 11:11:13 -05:00
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function powerOff() {
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sim.powerOff();
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2020-03-06 09:15:26 -05:00
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}
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2020-03-06 11:58:08 -05:00
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function reset() {
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sim.reset();
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}
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2020-03-06 11:40:54 -05:00
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function loadData() {
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var data = document.getElementById("data").value;
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sim.loadDataAsHexString(0, data);
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}
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2020-03-06 09:15:26 -05:00
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function run() {
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sim.start();
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}
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2020-03-06 11:40:54 -05:00
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function singleStep() {
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sim.step(1);
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}
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2020-03-06 09:15:26 -05:00
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function stop() {
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sim.stop();
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}
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</script>
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</body>
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</html>
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