mirror of
https://github.com/pkimpel/retro-b5500.git
synced 2026-02-13 19:54:50 +00:00
1c430583cd
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.
347 lines
13 KiB
JavaScript
347 lines
13 KiB
JavaScript
/***********************************************************************
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* retro-b5500/emulator B5500CardPunch.js
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************************************************************************
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* Copyright (c) 2013, Nigel Williams and Paul Kimpel.
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* Licensed under the MIT License, see
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* http://www.opensource.org/licenses/mit-license.php
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************************************************************************
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* B5500 Card Punch Peripheral Unit module.
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*
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* Defines a card punch peripheral unit type.
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*
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************************************************************************
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* 2013-06-16 P.Kimpel
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* Original version, from B5500CardReader.js & B5500DummyPrinter.js.
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***********************************************************************/
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"use strict";
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/**************************************/
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function B5500CardPunch(mnemonic, unitIndex, designate, statusChange, signal) {
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/* Constructor for the CardPunch object */
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var that = this;
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this.mnemonic = mnemonic; // Unit mnemonic
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this.unitIndex = unitIndex; // Ready-mask bit number
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this.designate = designate; // IOD unit designate number
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this.statusChange = statusChange; // external function to call for ready-status change
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this.signal = signal; // external function to call for special signals (not used here)
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this.timer = 0; // setCallback() token
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this.initiateStamp = 0; // timestamp of last initiation (set by IOUnit)
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this.clear();
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this.window = window.open("", mnemonic);
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if (this.window) {
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this.shutDown(); // destroy the previously-existing window
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this.window = null;
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}
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this.doc = null;
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this.stacker1 = null;
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this.endOfStacker1 = null;
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this.stacker2 = null;
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this.endOfStacker2 = null;
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this.window = window.open("../webUI/B5500CardPunch.html", mnemonic,
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"scrollbars=no,resizable,width=560,height=204,left=0,top=220");
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this.window.addEventListener("load", function windowLoad() {
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that.punchOnload();
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}, false);
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}
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B5500CardPunch.prototype.cardsPerMinute = 300; // Punch speed
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B5500CardPunch.prototype.maxScrollLines = 850; // Maximum punch stacker scrollback (stacker capacity)
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/**************************************/
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B5500CardPunch.prototype.$$ = function $$(e) {
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return this.doc.getElementById(e);
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};
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/**************************************/
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B5500CardPunch.prototype.clear = function clear() {
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/* Initializes (and if necessary, creates) the punch unit state */
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this.ready = false; // ready status
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this.busy = false; // busy status
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this.errorMask = 0; // error mask for finish()
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this.finish = null; // external function to call for I/O completion
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this.runoutArmed = false; // EOF button: armed state
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this.stopCount = 0; // stopCount for clearing the input buffer
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this.stacker1Count = 0; // cards in stacker #1
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this.stacker2Count = 0; // cards in stacker #2
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};
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/**************************************/
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B5500CardPunch.prototype.hasClass = function hasClass(e, name) {
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/* returns true if element "e" has class "name" in its class list */
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var classes = e.className;
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if (!e) {
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return false;
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} else if (classes == name) {
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return true;
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} else {
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return (classes.search("\\b" + name + "\\b") >= 0);
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}
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};
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/**************************************/
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B5500CardPunch.prototype.addClass = function addClass(e, name) {
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/* Adds a class "name" to the element "e"s class list */
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if (!this.hasClass(e, name)) {
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e.className += (" " + name);
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}
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};
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/**************************************/
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B5500CardPunch.prototype.removeClass = function removeClass(e, name) {
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/* Removes the class "name" from the element "e"s class list */
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e.className = e.className.replace(new RegExp("\\b" + name + "\\b\\s*", "g"), "");
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};
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/**************************************/
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B5500CardPunch.prototype.setPunchReady = function setPunchReady(ready) {
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/* Controls the ready-state of the card punch */
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if (ready && !this.ready) {
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this.statusChange(1);
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this.addClass(this.$$("CPStartBtn"), "greenLit")
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this.removeClass(this.$$("CPNotReadyLight"), "redLit");
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this.ready = true;
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if (this.runoutArmed) {
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if (this.stacker1Count || this.stacker2Count) {
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if (this.window.confirm("Empty both " + this.mnemonic + " stackers?")) {
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this.stacker1Count = this.stacker2Count = 0;
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this.$$("CPStacker1Bar").value = 0;
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this.$$("CPStacker2Bar").value = 0;
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while (this.stacker1.firstChild) {
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this.stacker1.removeChild(this.stacker1.firstChild);
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}
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while (this.stacker2.firstChild) {
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this.stacker2.removeChild(this.stacker2.firstChild);
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}
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}
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}
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this.armRunout(false);
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}
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} else if (!ready && this.ready) {
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this.statusChange(0);
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this.removeClass(this.$$("CPStartBtn"), "greenLit")
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this.addClass(this.$$("CPNotReadyLight"), "redLit");
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this.ready = false;
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}
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};
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/**************************************/
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B5500CardPunch.prototype.armRunout = function armRunout(armed) {
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/* Controls the arming/disarming of the EOF signal when starting with
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an empty input stacker */
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if (armed && !this.ready) {
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this.addClass(this.$$("CPRunoutBtn"), "redLit");
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this.runoutArmed = true;
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} else {
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this.removeClass(this.$$("CPRunoutBtn"), "redLit");
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this.runoutArmed = false;
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}
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};
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/**************************************/
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B5500CardPunch.prototype.CPStartBtn_onclick = function CPStartBtn_onclick(ev) {
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/* Handle the click event for the START button */
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var that = this;
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if (!this.ready) {
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this.stopCount = 0;
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if (this.bufIndex < this.bufLength) {
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}
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this.setPunchReady(true);
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}
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};
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/**************************************/
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B5500CardPunch.prototype.CPStopBtn_onclick = function CPStopBtn_onclick(ev) {
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/* Handle the click event for the STOP button */
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if (this.ready) {
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this.setPunchReady(false);
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} else if (this.runoutArmed) {
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this.armRunout(false);
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}
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};
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/**************************************/
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B5500CardPunch.prototype.CPRunoutBtn_onclick = function CPRunoutBtn_onclick(ev) {
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/* Handle the click event for the EOF button */
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this.armRunout(!this.runoutArmed);
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};
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/**************************************/
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B5500CardPunch.prototype.beforeUnload = function beforeUnload(ev) {
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var msg = "Closing this window will make the device unusable.\n" +
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"Suggest you stay on the page and minimize this window instead";
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ev.preventDefault();
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ev.returnValue = msg;
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return msg;
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};
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/**************************************/
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B5500CardPunch.prototype.punchOnload = function punchOnload() {
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/* Initializes the punch window and user interface */
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var that = this;
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this.doc = this.window.document;
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this.doc.title = "retro-B5500 " + this.mnemonic;
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this.stacker1Frame = this.$$("CPStacker1Frame");
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this.stacker1Frame.contentDocument.head.innerHTML += "<style>" +
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"BODY {background-color: white; margin: 2px} " +
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"PRE {margin: 0; font-size: 8pt; font-family: Lucida Sans Typewriter, Courier New, Courier, monospace}" +
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"</style>";
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this.stacker1 = this.doc.createElement("pre");
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this.stacker1Frame.contentDocument.body.appendChild(this.stacker1);
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this.endOfStacker1 = this.doc.createElement("div");
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this.stacker1Frame.contentDocument.body.appendChild(this.endOfStacker1);
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this.stacker2Frame = this.$$("CPStacker2Frame");
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this.stacker2Frame.contentDocument.head.innerHTML += "<style>" +
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"BODY {background-color: white; margin: 2px} " +
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"PRE {margin: 0; font-size: 8pt; font-family: Lucida Sans Typewriter, Courier New, Courier, monospace}" +
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"</style>";
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this.stacker2 = this.doc.createElement("pre");
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this.stacker2Frame.contentDocument.body.appendChild(this.stacker2);
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this.endOfStacker2 = this.doc.createElement("div");
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this.stacker2Frame.contentDocument.body.appendChild(this.endOfStacker2);
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this.window.addEventListener("beforeunload", this.beforeUnload, false);
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this.armRunout(false);
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this.setPunchReady(true);
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this.$$("CPStartBtn").addEventListener("click", function startClick(ev) {
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that.CPStartBtn_onclick(ev);
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}, false);
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this.$$("CPStopBtn").addEventListener("click", function stopClick(ev) {
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that.CPStopBtn_onclick(ev);
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}, false);
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this.$$("CPRunoutBtn").addEventListener("click", function runoutClick(ev) {
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that.CPRunoutBtn_onclick(ev);
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}, false);
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this.$$("CPStacker1Bar").max = this.maxScrollLines;
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this.$$("CPStacker2Bar").max = this.maxScrollLines;
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};
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/**************************************/
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B5500CardPunch.prototype.appendLine = function appendLine(stacker, text) {
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/* Removes excess lines already printed, then appends a new <pre> element
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to the <iframe>, creating an empty text node inside the new element */
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var count = stacker.childNodes.length;
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var line = this.doc.createTextNode(text || "");
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//while (count-- > this.maxScrollLines) {
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// stacker.removeChild(stacker.firstChild);
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//}
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stacker.appendChild(line);
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};
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/**************************************/
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B5500CardPunch.prototype.read = function read(finish, buffer, length, mode, control) {
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/* Initiates a read operation on the unit */
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finish(0x04, 0); // report unit not ready
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};
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/**************************************/
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B5500CardPunch.prototype.space = function space(finish, length, control) {
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/* Initiates a space operation on the unit */
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finish(0x04, 0); // report unit not ready
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};
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/**************************************/
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B5500CardPunch.prototype.write = function write(finish, buffer, length, mode, control) {
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/* Initiates a write operation on the unit */
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var text;
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this.errorMask = 0;
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this.busy = true;
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text = String.fromCharCode.apply(null, buffer.subarray(0, length));
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//console.log("WRITE: L=" + length + ", M=" + mode + ", C=" + control + " : " + text);
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if (control) {
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this.appendLine(this.stacker2, text + "\n");
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this.endOfStacker2.scrollIntoView();
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this.$$("CPStacker2Bar").value = (++this.stacker2Count);
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if (this.stacker2Count >= this.maxScrollLines) {
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this.setPunchReady(false);
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}
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} else {
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this.appendLine(this.stacker1, text + "\n");
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this.endOfStacker1.scrollIntoView();
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this.$$("CPStacker1Bar").value = (++this.stacker1Count);
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if (this.stacker1Count >= this.maxScrollLines) {
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this.setPunchReady(false);
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}
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}
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this.timer = setCallback(this.mnemonic, this,
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60000/this.cardsPerMinute + this.initiateStamp - performance.now(),
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function writeDelay() {
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this.busy = false;
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finish(this.errorMask, length);
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});
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};
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/**************************************/
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B5500CardPunch.prototype.erase = function erase(finish, length) {
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/* Initiates an erase operation on the unit */
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finish(0x04, 0); // report unit not ready
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};
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/**************************************/
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B5500CardPunch.prototype.rewind = function rewind(finish) {
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/* Initiates a rewind operation on the unit */
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finish(0x04, 0); // report unit not ready
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};
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/**************************************/
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B5500CardPunch.prototype.readCheck = function readCheck(finish, length, control) {
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/* Initiates a read check operation on the unit */
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finish(0x04, 0); // report unit not ready
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};
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/**************************************/
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B5500CardPunch.prototype.readInterrogate = function readInterrogate(finish, control) {
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/* Initiates a read interrogate operation on the unit */
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finish(0x04, 0); // report unit not ready
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};
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/**************************************/
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B5500CardPunch.prototype.writeInterrogate = function writeInterrogate(finish, control) {
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/* Initiates a write interrogate operation on the unit */
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finish(0x04, 0); // report unit not ready
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};
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/**************************************/
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B5500CardPunch.prototype.shutDown = function shutDown() {
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/* Shuts down the device */
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if (this.timer) {
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clearCallback(this.timer);
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}
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this.window.removeEventListener("beforeunload", this.beforeUnload, false);
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this.window.close();
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};
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