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text-mode.html
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<!doctype html>
<!--
Copyright 2020 wixette@gmail.com
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<html>
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
<style>
body {
border: 0;
margin: 30px;
font-family: monospace;
font-size: 14px;
}
hr {
border-top: #ccc solid 1px;
height: 0;
margin: 10px 0 10px 0;
}
div {
border: 0;
padding: 0;
margin: 0;
}
p, pre {
margin: 0;
padding: 0;
line-height: 20px;
}
.switch {
margin: 0 13px 0 0;
padding: 0;
}
.comments {
font-size: 11px;
color: #666;
line-height: 14px;
}
</style>
</head>
<body>
<h2>Text-mode Altair 8800 simulator</h2>
<hr>
<p>
<input type="button" value="POWER ON" onclick="powerOn();">
<input type="button" value="POWER OFF" onclick="powerOff();">
<input type="button" value="RUN" onclick="run();">
<input type="button" value="STOP" onclick="stop();">
<input type="button" value="SINGLE STEP" onclick="singleStep();">
</p>
<p>
<input type="button" value="EXAMINE" onclick="examine();">
<input type="button" value="EXAMINE NEXT" onclick="examineNext();">
<input type="button" value="DEPOSIT" onclick="deposit();">
<input type="button" value="DEPOSIT NEXT" onclick="depositNext();">
<input type="button" value="RESET" onclick="reset();">
<input type="button" value="CLR" disabled>
</p>
<p>
<input type="button" value="PROTECT" disabled>
<input type="button" value="UNPROTECT" disabled>
<input type="button" value="AUX" disabled>
<input type="button" value="AUX" disabled>
</p>
<hr>
<p>
<input id="data" type="text" size="60">
<input type="button" value="LOAD DATA" onclick="loadData();"><br>
<span class="comments">In HEX string, e.g.: 00 01 02 03 0a 0b 0c 0d</span>
</p>
<hr>
<p>LEDs: <!-- ● - on. ○ - off. -->
<div id="status-leds">
<p>
INTE <span class="led">○</span>
PROT <span class="led">○</span>
MEMR <span id="memr-led" class="led">○</span>
INP <span class="led">○</span>
MI <span id="mi-led" class="led">○</span>
OUT <span class="led">○</span>
HLTA <span class="led">○</span>
STACK <span class="led">○</span>
WO <span id="wo-led" class="led">○</span>
INT <span class="led">○</span>
</p>
</div>
<div id="wait-leds">
<p>
WAIT <span id="wait-led" class="led">○</span>
HLDA <span class="led">○</span>
</p>
</div>
<div id="data-leds">
<p>
D7 D6 D5 D4 D3 D2 D1 D0<br>
<span id="d7" class="led">○</span>
<span id="d6" class="led">○</span>
<span id="d5" class="led">○</span>
<span id="d4" class="led">○</span>
<span id="d3" class="led">○</span>
<span id="d2" class="led">○</span>
<span id="d1" class="led">○</span>
<span id="d0" class="led">○</span>
</p>
</div>
<div id="address-leds">
<p>
A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0<br>
<span id="a15" class="led">○</span>
<span id="a14" class="led">○</span>
<span id="a13" class="led">○</span>
<span id="a12" class="led">○</span>
<span id="a11" class="led">○</span>
<span id="a10" class="led">○</span>
<span id="a9" class="led">○</span>
<span id="a8" class="led">○</span>
<span id="a7" class="led">○</span>
<span id="a6" class="led">○</span>
<span id="a5" class="led">○</span>
<span id="a4" class="led">○</span>
<span id="a3" class="led">○</span>
<span id="a2" class="led">○</span>
<span id="a1" class="led">○</span>
<span id="a0" class="led">○</span>
</p>
</div>
<div id="switches">
<p>
<input type="checkbox" id="s15" class="switch" value="">
<input type="checkbox" id="s14" class="switch" value="">
<input type="checkbox" id="s13" class="switch" value="">
<input type="checkbox" id="s12" class="switch" value="">
<input type="checkbox" id="s11" class="switch" value="">
<input type="checkbox" id="s10" class="switch" value="">
<input type="checkbox" id="s9" class="switch" value="">
<input type="checkbox" id="s8" class="switch" value="">
<input type="checkbox" id="s7" class="switch" value="">
<input type="checkbox" id="s6" class="switch" value="">
<input type="checkbox" id="s5" class="switch" value="">
<input type="checkbox" id="s4" class="switch" value="">
<input type="checkbox" id="s3" class="switch" value="">
<input type="checkbox" id="s2" class="switch" value="">
<input type="checkbox" id="s1" class="switch" value="">
<input type="checkbox" id="s0" class="switch" value="">
</p>
</div>
</p>
<hr>
<p>CPU dump:
<div id="cpu"></div>
</p>
<hr>
<p>Memory dump:
<div id="mem"></div>
</p>
<script src="js/8080.js"></script>
<script src="js/sim8800.js"></script>
<script>
function setAddressLedsCallback(bits) {
for (let i = 0; i < bits.length; i++) {
var ledElem = document.getElementById('a' + i);
ledElem.innerHTML = bits[i] ? '●' : '○';
}
}
function setDataLedsCallback(bits) {
for (let i = 0; i < bits.length; i++) {
var ledElem = document.getElementById('d' + i);
ledElem.innerHTML = bits[i] ? '●' : '○';
}
}
function setWaitLedCallback(isRunning) {
var ledElem = document.getElementById('wait-led');
ledElem.innerHTML = isRunning ? '○' : '●';
}
function setStatusLedsCallback(isPoweredOn) {
var ledElems = [
document.getElementById('memr-led'),
document.getElementById('mi-led'),
document.getElementById('wo-led')
];
for (let i = 0; i < ledElems.length; i++) {
ledElems[i].innerHTML = isPoweredOn ? '●' : '○';
}
}
function dumpCpuCallback(dumpHtml) {
var dumpCpuElem = document.getElementById('cpu');
dumpCpuElem.innerHTML = dumpHtml;
}
function dumpMemCallback(dumpHtml) {
var dumpMemElem = document.getElementById('mem');
dumpMemElem.innerHTML = dumpHtml;
}
function getInputAddressCallback() {
var word = 0;
for (let i = 0; i < 16; i++) {
var switchElem = document.getElementById('s' + i);
if (switchElem.checked) {
word |= 1 << i;
}
}
return word;
}
var sim = new Sim8800(256, 1000000,
setAddressLedsCallback, setDataLedsCallback,
setWaitLedCallback, setStatusLedsCallback,
getInputAddressCallback,
dumpCpuCallback, dumpMemCallback);
function powerOn() {
sim.powerOn();
}
function powerOff() {
sim.powerOff();
}
function reset() {
sim.reset();
}
function loadData() {
var data = document.getElementById("data").value;
sim.loadDataAsHexString(0, data);
}
function run() {
sim.start();
}
function singleStep() {
sim.step(1);
}
function stop() {
sim.stop();
}
function examine() {
sim.examine();
}
function examineNext() {
sim.examineNext();
}
function deposit() {
sim.deposit();
}
function depositNext() {
sim.depositNext();
}
</script>
</body>
</html>