github.com/pkimpel.retro-b5500
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Code Releases Activity

1. Release emulator version 0.20.

Browse Source 
2. Fully implement Double Precision Add/Subtract (DLA/DLS), Multiply (DLM), and Divide (DLD) syllables.
3. Replace standard setTimeout() by redesigned setCallback() mechanism throughout the emulator for scheduling timing delays and other callbacks on the Javascript thread. Delete obsolete setImmediate() mechanism.
4. Replace "new Date().getTime()" by "performance.now()" calls for greater timer precision.
5. Minor tweaks to Single Precision arithmetic operators.
6. Replace Javascript postfix operators by prefix operators wherever feasible (e.g., x++ becomes ++x).
8. Attempt to correct character translation and keyboard filtering in DatacomUnit for CANDE.
9. Minor changes to button colors and illumination behavior for I/O devices and Console.
10. Suppress I/O device classes in B5500SyllableDebugger by default (uncomment in source to enable).
. Drop support for webkitIndexedDB and mozIndexedDB (for now).
. Configure four tape drives (MTA-MTD) by default.
This commit is contained in:
paul.kimpel@digm.com
2014-06-29 21:13:51 +00:00
parent 4c51038c86
commit 1c430583cd
24 changed files with 1449 additions and 955 deletions
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31
webUI/B5500SyllableDebugger.html
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@@ -10,13 +10,19 @@
<script src="./B5500SetCallback.js"></script>
<script src="./B5500DummyUnit.js"></script>
<!-- Uncomment the following elements to enable I/O devices in the debugger.
To halt/load the MCP, you will need at least the SPO and Disk. -->
<!--
<script src="./B5500SPOUnit.js"></script>
<script src="./B5500DiskUnit.js"></script>
<script src="./B5500CardReader.js"></script>
<script src="./B5500CardPunch.js"></script>
<script src="./B5500DummyPrinter.js"></script>
<script src="./B5500CardPunch.js"></script>
<script src="./B5500DatacomUnit.js"></script>
<script src="./B5500MagTapeDrive.js"></script>
-->
<script src="../emulator/B5500SystemConfiguration.js"></script>
<script src="../emulator/B5500CentralControl.js"></script>
@@ -26,10 +32,6 @@
<script>
"use strict";
if (!window.indexedDB) { // for Safari, mostly
window.indexedDB = window.webkitIndexedDB || window.mozIndexedDB;
}
var runningCycles = 1000; // Number of instructions per run-mode interval
var cc;
@@ -270,9 +272,9 @@ function setText(id, text) {
function escapeHTML(text) {
/* Returns "text" as escaped HTML */
function htmlFilter(char) {
function htmlFilter(c) {
/* Used to escape HTML-sensitive characters in a string */
switch (char) {
switch (c) {
case "&":
return "&amp;";
case "<":
@@ -282,18 +284,18 @@ function escapeHTML(text) {
case "\"":
return "&quot;";
default:
return char;
return c;
}
}
return text.replace(htmlMatch, htmlFilter);
}
function padLeft(text, minLength, char) {
/* Pads "text" on the left to a total length of "minLength" with "char" */
function padLeft(text, minLength, c) {
/* Pads "text" on the left to a total length of "minLength" with "c" */
var s = text.toString();
var len = s.length;
var pad = char || " ";
var pad = c || " ";
while (len++ < minLength) {
s = pad + s;
@@ -976,7 +978,7 @@ function runIt(ev) {
} while (runSilently && stopAddress && px.C != stopAddress);
if (stopAddress && px.C != stopAddress) {
setCallback(syllabicate, this, 0);
setCallback(null, this, 0, syllabicate);
if (!runSilently) {
displaySystemState();
}
@@ -1101,7 +1103,7 @@ function fileLoader_onLoad(ev) {
words + " words, last addr = @" + (addr+words-1).toString(8));
} catch (e) {
words = 0;
alert("File load failed: " + e.toString());
alert("File load failed: " + e.name + ", " + e.message);
}
if (words > 0) {
px.preset(0x10); // execute from address @20
@@ -1395,7 +1397,8 @@ window.onload = function() {
<div id=BurroughsLogo>
<img id=BurroughsLogoImage src="Burroughs-Logo-Neg.jpg">
</div>
<div id=B5500Logo>B 5500
<div id=B5500Logo>
<img id=RetroLogoImage src="retro-B5500-Logo.png" alt="retro-B5500 logo">
</div>
</div>