mirror of
https://github.com/pkimpel/retro-220.git
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33c195ae84
1. Initial Cardatron implementation with CardatronInput (card reader). 2. Implement default Pi demo program at address 0300. 3. Implement WINTER.PI card-load deck to boot from card reader 1 and run at address 0500. 4. Fix syntax typos in tools/BAC-Assembler.html.
574 lines
22 KiB
JavaScript
574 lines
22 KiB
JavaScript
/***********************************************************************
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* retro-220/webUI B220ConsolePrinter.js
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************************************************************************
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* Copyright (c) 2017, 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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* Burroughs 220 Console Printer and
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* High-Speed Paper Tape Punch devices.
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************************************************************************
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* 2017-03-17 P.Kimpel
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* Original version, from retro-205 D205ConsoleOutput.js.
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***********************************************************************/
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"use strict";
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/**************************************/
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function B220ConsolePrinter(mnemonic, unitIndex, config) {
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/* Constructor for the Console Printer object */
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var top = unitIndex*32;
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var left = unitIndex*32;
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this.config = config; // System configuration object
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this.mnemonic = mnemonic; // Unit mnemonic
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this.unitIndex = unitIndex; // Unit index into console output units
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this.outTimer = 0; // output setCallback() token
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this.columns = 72; // right-margin auto-return position
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this.format = 0; // 0=space, 1=tab, 2=carriage-return
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this.nextCharTime = 0; // next time a character can be printed
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this.mapMemory = 0; // map-memory switch setting
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this.unitMask = 0; // unit selection mask
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this.unitSwitch = new Array(11); // unit selection switch objects
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this.tabStop = []; // 0-relative tab stop positions
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this.zeroSuppress = 0; // zero-suppression switch setting
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this.boundButton_Click = B220Util.bindMethod(this, B220ConsolePrinter.prototype.button_Click);
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this.boundText_OnChange = B220Util.bindMethod(this, B220ConsolePrinter.prototype.text_OnChange);
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this.boundFlipSwitch = B220Util.bindMethod(this, B220ConsolePrinter.prototype.flipSwitch);
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this.boundReceiveSign = B220Util.bindMethod(this, B220ConsolePrinter.prototype.receiveSign);
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this.boundReceiveChar = B220Util.bindMethod(this, B220ConsolePrinter.prototype.receiveChar);
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this.clear();
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// Create the printer window and onload event
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this.doc = null;
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this.paper = null;
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this.printerEOP = null;
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this.printerLine = 0;
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this.printerCol = 0;
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this.window = window.open("../webUI/B220ConsolePrinter.html", mnemonic,
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"location=no,scrollbars=no,resizable,width=640,height=300," +
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"left=" + left + ",top=" + top);
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this.window.addEventListener("load", B220Util.bindMethod(this,
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B220ConsolePrinter.prototype.printerOnLoad));
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}
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/**************************************/
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B220ConsolePrinter.offSwitchImage = "./resources/ToggleDown.png";
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B220ConsolePrinter.onSwitchImage = "./resources/ToggleUp.png";
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B220ConsolePrinter.charsPerSecond = 10; // Printer speed
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B220ConsolePrinter.charPeriod = 1000/B220ConsolePrinter.charsPerSecond;
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// Inter-character period, ms
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B220ConsolePrinter.pageSize = 66; // lines/page for form-feed
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B220ConsolePrinter.maxScrollLines = 15000;
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// Maximum amount of paper scrollback
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B220ConsolePrinter.codeXlate = [ // translate internal B220 code to ANSI
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" ", "?", " ", ".", "\u00A4", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", // 00-0F
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"&", "?", "?", "$", "*", "\f", "\n", "?", "?", "?", "?", "?", "?", "?", "?", "?", // 10-1F
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"-", "/", "?", ",", "%", "?", "\t", "?", "?", "?", "?", "?", "?", "?", "?", "?", // 20-2F
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"?", "?", "?", "#", "@", "!", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", // 30-3F
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"?", "A", "B", "C", "D", "E", "F", "G", "H", "I", "?", "?", "?", "?", "?", "?", // 40-4F
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"?", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "?", "?", "?", "?", "?", "?", // 50-5F
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"?", "?", "S", "T", "U", "V", "W", "X", "Y", "Z", "?", "?", "?", "?", "?", "?", // 60-6F
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"?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", // 70-7F
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"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "?", "?", "?", "?", "?", "?", // 80-8F
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"?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?", "?"]; // 90-9F
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/**************************************/
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B220ConsolePrinter.prototype.clear = function clear() {
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/* Initializes (and if necessary, creates) the SPO 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.eowAction = 0; // 1 => End-of-Word action needed
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this.suppressLZ = 0; // 1 => currently suppressing leading zeroes
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};
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/**************************************/
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B220ConsolePrinter.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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B220ConsolePrinter.prototype.$$ = function $$(e) {
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return this.doc.getElementById(e);
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};
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/**************************************/
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B220ConsolePrinter.prototype.emptyPaper = function emptyPaper() {
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/* Empties the printer output "paper" and initializes it for new output */
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while (this.paper.firstChild) {
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this.paper.removeChild(this.paper.firstChild);
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}
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this.paper.appendChild(this.doc.createTextNode(""));
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};
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/**************************************/
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B220ConsolePrinter.prototype.emptyLine = function emptyLine(text) {
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/* Removes excess lines already output, then appends a new text node to the
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<pre> element within the paper element. Note that "text" is an ANSI string */
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var paper = this.paper;
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var line = text || "";
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while (paper.childNodes.length > B220ConsolePrinter.maxScrollLines) {
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paper.removeChild(paper.firstChild);
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}
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paper.lastChild.nodeValue += "\n"; // newline
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paper.appendChild(this.doc.createTextNode(line));
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++this.printerLine;
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this.printerCol = line.length;
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this.printerEOP.scrollIntoView();
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};
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/**************************************/
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B220ConsolePrinter.prototype.printChar = function printChar(code) {
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/* Outputs the character "code" to the device */
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var c = B220ConsolePrinter.codeXlate[code];
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var line;
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var len;
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if (c != "?") { // some 220 codes just don't print
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line = this.paper.lastChild.nodeValue;
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len = line.length;
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if (len < 1) {
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this.paper.lastChild.nodeValue = c;
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this.printerCol = 1;
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} else if (len < this.columns) {
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this.paper.lastChild.nodeValue = line + c;
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++this.printerCol;
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} else {
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this.emptyLine(c);
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}
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}
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};
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/**************************************/
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B220ConsolePrinter.prototype.printTab = function printTab() {
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/* Simulates tabulation by outputting an appropriate number of spaces */
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var tabCol; // tabulation column
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var x; // scratch index
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for (x=0; x<this.tabStop.length; ++x) {
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if (this.tabStop[x] > this.printerCol) {
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tabCol = this.tabStop[x];
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break; // out of for loop
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}
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} // for x
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if (this.columns < tabCol) {
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this.emptyLine(); // tab would overflow right margin
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} else {
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while (this.printerCol < tabCol) {
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this.printChar(0x00); // output a space
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}
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}
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};
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/**************************************/
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B220ConsolePrinter.prototype.printFormFeed = function printFormFeed() {
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/* Simulates a form feed by outputting an appropriate number of blank lines */
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this.printerLine %= B220ConsolePrinter.pageSize;
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while (this.printerLine < B220ConsolePrinter.pageSize) {
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this.emptyLine();
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}
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};
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/**************************************/
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B220ConsolePrinter.prototype.resizeWindow = function resizeWindow(ev) {
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/* Handles the window onresize event by scrolling the "paper" so it remains at the end */
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this.printerEOP.scrollIntoView();
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};
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/**************************************/
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B220ConsolePrinter.prototype.copyPaper = function copyPaper(ev) {
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/* Copies the text contents of the "paper" area of the device, opens a new
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temporary window, and pastes that text into the window so it can be copied
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or saved by the user */
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var text = this.paper.textContent;
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var title = "B220 " + this.mnemonic + " Text Snapshot";
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var win = window.open("./B220FramePaper.html", "TTY-Snapshot",
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"scrollbars,resizable,width=500,height=500");
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win.moveTo((screen.availWidth-win.outerWidth)/2, (screen.availHeight-win.outerHeight)/2);
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win.addEventListener("load", function() {
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var doc;
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doc = win.document;
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doc.title = title;
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doc.getElementById("Paper").textContent = text;
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});
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this.emptyPaper();
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this.emptyLine();
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ev.preventDefault();
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ev.stopPropagation();
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};
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/**************************************/
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B220ConsolePrinter.prototype.button_Click = function button_Click(ev) {
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/* Handler for button clicks */
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switch (ev.target.id) {
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case "LineFeedBtn":
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this.emptyLine();
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break;
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case "CarriageReturnBtn":
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if (this.printerCol > 0) {
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this.emptyLine();
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}
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break;
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case "OpenPanelBtn":
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ev.target.disabled = true;
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this.$$("FormatControlsDiv").style.display = "block";
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break;
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case "ClosePanelBtn":
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this.$$("OpenPanelBtn").disabled = false;
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this.$$("FormatControlsDiv").style.display = "none";
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break;
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} // switch ev.target.id
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ev.preventDefault();
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ev.stopPropagation();
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};
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/**************************************/
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B220ConsolePrinter.prototype.flipSwitch = function flipSwitch(ev) {
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/* Handler for switch clicks */
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var id = ev.target.id;
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var prefs = this.config.getNode("ConsoleOutput.units", this.unitIndex);
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var x;
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switch (id) {
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case "ZeroSuppressSwitch":
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this.zeroSuppressSwitch.flip();
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prefs.zeroSuppress = this.zeroSuppress = this.zeroSuppressSwitch.state;
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break;
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case "MapMemorySwitch":
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this.mapMemorySwitch.flip();
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prefs.mapMemory, this.mapMemory = this.mapMemorySwitch.state;
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break;
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case "RemoteKnob":
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this.remoteKnob.step();
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prefs.remote = this.remoteKnob.position;
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this.ready = (this.remoteKnob.position != 0);
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break;
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case "FormatKnob":
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this.formatKnob.step();
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prefs.format = this.formatKnob.position;
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this.format = this.formatKnob.position;
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break;
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default:
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x = id.indexOf("UnitSwitch");
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if (x == 0) {
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x = parseInt(id.substring(10), 10);
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if (!isNaN(x)) {
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this.unitSwitch[x].flip();
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this.unitMask ^= B220Processor.pow2[x];
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prefs.unitMask = this.unitMask;
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}
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}
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break;
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}
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this.config.putNode("ConsoleOutput.units", prefs, this.unitIndex);
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ev.preventDefault();
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ev.stopPropagation();
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};
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/**************************************/
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B220ConsolePrinter.prototype.text_OnChange = function text_OnChange(ev) {
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/* Handler for text onchange events */
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var prefs = this.config.getNode("ConsoleOutput.units", this.unitIndex);
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var text = ev.target.value;
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var v;
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switch (ev.target.id) {
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case "Columns":
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v = parseInt(text, 10);
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if (!isNaN(v)) {
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this.columns = v;
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ev.target.value = text = v.toFixed();
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prefs.columns = v;
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}
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break;
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case "TabStops":
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v = this.parseTabStops(prefs.tabs || "", this.window);
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if (v !== null) {
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this.tabStop = v;
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ev.target.value = text = v.join(",");
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prefs.tabs = text;
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}
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break;
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} // switch ev.target.id
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this.config.putNode("ConsoleOutput.units", prefs, this.unitIndex);
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ev.preventDefault();
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ev.stopPropagation();
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};
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/**************************************/
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B220ConsolePrinter.prototype.parseTabStops = function parsetabStops(text, alertWin) {
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/* Parses a comma-delimited list of 1-relative tab stops. If the list is parsed
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successfully, returns an array of 0-relative tab stop positions; otherwise
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returns null. An alert is displayed on the window for the first parsing or
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out-of-sequence error */
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var col;
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var cols;
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var copacetic = true;
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var lastCol = 0;
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var raw;
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var x;
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var tabStop = [];
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if (text.search(/\S/) >= 0) {
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cols = text.split(",");
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for (x=0; x<cols.length; ++x) {
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raw = cols[x].trim();
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if (raw.length > 0) { // ignore empty fields
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col = parseInt(raw, 10);
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if (isNaN(col)) {
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copacetic = false;
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alertWin.alert("Tab stop #" + (x+1) + " (\"" + cols[x] + "\") is not numeric");
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break; // out of for loop
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} else if (col <= lastCol) {
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copacetic = false;
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alertWin.alert("Tab stop #" + (x+1) + " (\"" + col + "\") is out of sequence");
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break; // out of for loop
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} else {
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lastCol = col;
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tabStop.push(col-1);
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}
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}
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} // for x
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}
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return (copacetic ? tabStop : null);
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};
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/**************************************/
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B220ConsolePrinter.prototype.printerOnLoad = function printerOnLoad() {
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/* Initializes the Teletype printer window and user interface */
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var body;
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var id;
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var mask;
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var prefs = this.config.getNode("ConsoleOutput.units", this.unitIndex);
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var tabStop;
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var x;
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this.doc = this.window.document;
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this.doc.title = "retro-220 Printer - " + this.mnemonic;
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this.paper = this.$$("Paper");
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this.printerEOP = this.$$("EndOfPaper");
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this.emptyPaper();
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this.emptyLine();
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body = this.$$("FormatControlsDiv");
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this.remoteKnob = new BlackControlKnob(body, null, null, "RemoteKnob",
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prefs.remote, [20, -20]);
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this.ready = (prefs.remote != 0);
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this.zeroSuppressSwitch = new ToggleSwitch(body, null, null, "ZeroSuppressSwitch",
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B220ConsolePrinter.offSwitchImage, B220ConsolePrinter.onSwitchImage);
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this.zeroSuppressSwitch.set(prefs.zeroSuppress);
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this.zeroSuppress = this.zeroSuppressSwitch.state;
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this.mapMemorySwitch = new ToggleSwitch(body, null, null, "MapMemorySwitch",
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B220ConsolePrinter.offSwitchImage, B220ConsolePrinter.onSwitchImage);
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this.mapMemorySwitch.set(prefs.mapMemory);
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this.mapMemory = this.mapMemorySwitch.state;
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mask = 0x001;
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this.unitMask = prefs.unitMask;
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for (x=0; x<this.unitSwitch.length; ++x) {
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id = "UnitSwitch" + x.toFixed();
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this.unitSwitch[x] = new ToggleSwitch(body, null, null, id,
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B220ConsolePrinter.offSwitchImage, B220ConsolePrinter.onSwitchImage);
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this.unitSwitch[x].set(prefs.unitMask & mask ? 1 : 0);
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this.unitSwitch[x].addEventListener("click", this.boundFlipSwitch);
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mask <<= 1;
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}
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this.formatKnob = new BlackControlKnob(body, null, null, "FormatKnob",
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prefs.format, [-30, 0, 30]);
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this.format = prefs.format;
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this.columns = prefs.columns;
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this.$$("Columns").value = prefs.columns.toFixed();
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tabStop = this.parseTabStops(prefs.tabs || "", this.window);
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if (tabStop !== null) {
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this.tabStop = tabStop;
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this.$$("TabStops").value = tabStop.join(",");
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}
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// Events
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this.window.addEventListener("beforeunload",
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B220ConsolePrinter.prototype.beforeUnload);
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this.window.addEventListener("resize",
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B220Util.bindMethod(this, B220ConsolePrinter.prototype.resizeWindow));
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this.paper.addEventListener("dblclick",
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B220Util.bindMethod(this, B220ConsolePrinter.prototype.copyPaper));
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this.$$("OpenPanelBtn").addEventListener("click", this.boundButton_Click);
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this.$$("ClosePanelBtn").addEventListener("click", this.boundButton_Click);
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this.$$("LineFeedBtn").addEventListener("click", this.boundButton_Click);
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this.$$("CarriageReturnBtn").addEventListener("click", this.boundButton_Click);
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this.zeroSuppressSwitch.addEventListener("click", this.boundFlipSwitch);
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this.mapMemorySwitch.addEventListener("click", this.boundFlipSwitch);
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this.remoteKnob.addEventListener("click", this.boundFlipSwitch);
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this.formatKnob.addEventListener("click", this.boundFlipSwitch);
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this.$$("Columns").addEventListener("change", this.boundText_OnChange);
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this.$$("TabStops").addEventListener("change", this.boundText_OnChange);
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this.window.focus();
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};
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/***********************************************************************
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* Output Entry Points *
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***********************************************************************/
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/**************************************/
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B220ConsolePrinter.prototype.initiateOutput = function initiateOutput(successor) {
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/* Initiates output to the printer. This simply calls the successor function,
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passing our receiver function, so the processor can get the ball rolling */
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successor(this.boundReceiveSign);
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};
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/**************************************/
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B220ConsolePrinter.prototype.receiveSign = function receiveSign(char, successor) {
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/* Receives the sign character from the processor and handles it according
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to the value of the sign and the setting of the Map Memory and LZ Suppress
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switches */
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var delay = B220ConsolePrinter.charPeriod; // default character delay
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var stamp = performance.now(); // current time
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switch (true) {
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case this.mapMemory != 0: // transparent output
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this.eowAction = 1;
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this.suppressLZ = 0;
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this.printChar(char);
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break;
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case char == 0x82: // sign = 2, print alphanumeric
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this.eowAction = 0;
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this.suppressLZ = 0;
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delay = 0; // eat the sign char
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|
break;
|
|
|
|
case this.zeroSuppress == 1: // sign != 2, zero suppress
|
|
this.eowAction = 1;
|
|
this.suppressLZ = (char == 0x80 ? 1 : 0);
|
|
this.printChar(0x00); // print " "
|
|
break;
|
|
|
|
case (char & 0x01) == 1: // sign odd, no zero suppress
|
|
this.eowAction = 1;
|
|
this.suppressLZ = 0;
|
|
this.printChar(0x20); // print "-"
|
|
break;
|
|
|
|
default: // sign even, no zero suppress
|
|
this.eowAction = 1;
|
|
this.suppressLZ = 0;
|
|
this.printChar(0x00); // print " "
|
|
break;
|
|
} // switch
|
|
|
|
if (this.nextCharTime <= stamp) {
|
|
this.nextCharTime = stamp;
|
|
}
|
|
|
|
setCallback(this.mnemonic, this, this.nextCharTime-stamp+delay, successor, this.boundReceiveChar);
|
|
this.nextCharTime += delay;
|
|
};
|
|
|
|
/**************************************/
|
|
B220ConsolePrinter.prototype.receiveChar = function receiveChar(char, successor) {
|
|
/* Receives a non-sign character from the processor and outputs it. Special handling
|
|
is provided for tabs, carriage returns, form feeds, and end-of-word characters */
|
|
var delay = B220ConsolePrinter.charPeriod; // default character delay
|
|
var nextReceiver = this.boundReceiveChar; // default routine to receive next char
|
|
var stamp = performance.now(); // current time
|
|
|
|
switch (char) {
|
|
case 0x80: // zero
|
|
this.printChar(this.suppressLZ ? 0x00 : char);
|
|
break;
|
|
|
|
case 0x02: // blank (non-print)
|
|
break;
|
|
|
|
case 0x15: // form-feed
|
|
delay *= 4;
|
|
this.suppressLZ = 0;
|
|
this.printFormFeed();
|
|
break;
|
|
|
|
case 0x16: // carriage-return
|
|
delay *= 2;
|
|
this.suppressLZ = 0;
|
|
this.emptyLine();
|
|
break;
|
|
|
|
case 0x26: // tab
|
|
this.suppressLZ = 0;
|
|
this.printTab();
|
|
break;
|
|
|
|
case 0x35: // end-of-word
|
|
nextReceiver = this.boundReceiveSign; // next will be start of a new word
|
|
if (this.eowAction) {
|
|
switch (this.format) {
|
|
case 0: // EOW = space
|
|
this.printChar(0x00);
|
|
break;
|
|
case 1: // EOW = tab
|
|
this.printTab();
|
|
break;
|
|
case 2: // EOW = carriage-return
|
|
delay *= 2;
|
|
this.emptyLine();
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default: // all others
|
|
this.suppressLZ = 0;
|
|
this.printChar(char);
|
|
break;
|
|
} // switch char
|
|
|
|
setCallback(this.mnemonic, this, this.nextCharTime-stamp+delay, successor, nextReceiver);
|
|
this.nextCharTime += delay;
|
|
};
|
|
|
|
/**************************************/
|
|
B220ConsolePrinter.prototype.shutDown = function shutDown() {
|
|
/* Shuts down the device */
|
|
|
|
if (this.outTimer) {
|
|
clearCallback(this.outTimer);
|
|
}
|
|
|
|
if (this.window) {
|
|
this.window.removeEventListener("beforeunload", B220ConsolePrinter.prototype.beforeUnload);
|
|
this.window.close();
|
|
this.window = null;
|
|
}
|
|
};
|