129 lines
4.1 KiB
HTML
129 lines
4.1 KiB
HTML
<!doctype html>
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<html>
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<head>
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<meta charset="utf-8">
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<style>
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body {
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margin: 30px;
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font-family: monospace;
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}
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</style>
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</head>
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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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<input type="button" value="INIT" onclick="init();">
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<input type="button" value="TEST" onclick="test();">
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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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</p>
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<hr>
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<p>LEDs: <!-- ● - on. ○ - off. -->
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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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</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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<hr>
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<p>Memory dump:
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<div id="mem"></div>
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</p>
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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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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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var dumpCpuElem = document.getElementById('cpu');
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var dumpMemElem = document.getElementById('mem');
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var sim = new Sim8800(256, 1000000,
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setAddressLedsCallback, setDataLedsCallback,
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dumpCpuElem, dumpMemElem);
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function init() {
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sim.loadDataAsHexString(0, '00 01 02 03 04 05 06 07 08 09 0a 0b 0c 0d 0e 0f');
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sim.loadData(16, [0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07]);
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sim.dumpCpu();
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sim.dumpMem()
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}
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function test() {
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console.log(Sim8800.parseBits(10, 1));
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console.log(Sim8800.parseBits(0xF8, 1));
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console.log(Sim8800.parseBits(0xF0, 2));
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}
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function run() {
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// Switch echo between A2 and A1.
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// sim.loadDataAsHexString(0, 'db ff d3 ff c3 00 00');
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// Pattern shift.
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sim.loadDataAsHexString(0, '3e 8c d3 ff 0f c3 02 00');
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sim.start();
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sim.dumpCpu();
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sim.dumpMem()
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}
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function stop() {
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sim.stop();
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sim.dumpCpu();
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sim.dumpMem()
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}
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</script>
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</body>
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</html>
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