729 lines
26 KiB
JavaScript
729 lines
26 KiB
JavaScript
/**
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* @fileoverview Implements the PDP-11 SerialPort component (eg, DL11)
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* @author <a href="mailto:Jeff@pcjs.org">Jeff Parsons</a>
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* @copyright © Jeff Parsons 2012-2016
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*
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* This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.
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*
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* It has been adapted from the JavaScript PDP 11/70 Emulator v1.4 written by Paul Nankervis
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* (paulnank@hotmail.com) as of September 2016 at <http://skn.noip.me/pdp11/pdp11.html>. This code
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* may be used freely provided the original authors are acknowledged in any modified source code.
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*
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* PCjs is free software: you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation, either version 3
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* of the License, or (at your option) any later version.
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*
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* PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
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* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with PCjs. If not,
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* see <http://www.gnu.org/licenses/gpl.html>.
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*
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* You are required to include the above copyright notice in every modified copy of this work
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* and to display that copyright notice when the software starts running; see COPYRIGHT in
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* <http://pcjs.org/modules/shared/lib/defines.js>.
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*
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* Some PCjs files also attempt to load external resource files, such as character-image files,
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* ROM files, and disk image files. Those external resource files are not considered part of PCjs
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* for purposes of the GNU General Public License, and the author does not claim any copyright
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* as to their contents.
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*/
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"use strict";
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if (NODE) {
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var str = require("../../shared/lib/strlib");
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var web = require("../../shared/lib/weblib");
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var Component = require("../../shared/lib/component");
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var State = require("../../shared/lib/state");
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var PDP11 = require("./defines");
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var MessagesPDP11 = require("./messages");
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}
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/**
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* SerialPortPDP11(parmsSerial)
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*
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* The SerialPort component has the following component-specific (parmsSerial) properties:
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*
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* adapter: adapter number; 0 if not defined (the PCx86 SerialPort component uses this
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* value to set the device's internal COM number, which in turn determines other properties,
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* such as I/O ports and IRQ; for the PDP-11, this currently has no defined use)
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*
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* baudReceive: the default number of bits/second that the device should receive data at;
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* 0 means use the device default (PDP11.DL11.RCSR.BAUD)
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*
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* baudTransmit: the default number of bits/second that the device should transmit data at;
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* 0 means use the device default (PDP11.DL11.XCSR.BAUD)
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*
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* binding: name of a control (based on its "binding" attribute) to bind to this port's I/O
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*
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* tabSize: set to a non-zero number to convert tabs to spaces (applies only to output to
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* the above binding); default is 0 (no conversion)
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*
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* upperCase: if true, all received input is upper-cased; it is normally the responsibility
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* of the sending device to ensure this, but sometimes it's more convenient to enforce
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* on the receiving end.
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*
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* NOTE: Since the XSL file defines the 'adapter' and 'baud' properties as numbers, not strings,
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* there's no need to use parseInt(), and as an added benefit, we don't need to worry about whether
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* a hex or decimal format was used.
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*
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* @constructor
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* @extends Component
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* @param {Object} parmsSerial
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*/
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function SerialPortPDP11(parmsSerial) {
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this.iAdapter = parmsSerial['adapter'];
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this.nBaudReceive = parmsSerial['baudReceive'] || PDP11.DL11.RCSR.BAUD;
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this.nBaudTransmit = parmsSerial['baudTransmit'] || PDP11.DL11.XCSR.BAUD;
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this.fUpperCase = parmsSerial['upperCase'];
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/**
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* consoleOutput becomes a string that records serial port output if the 'binding' property is set to the
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* reserved name "console". Nothing is written to the console, however, until a linefeed (0x0A) is output
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* or the string length reaches a threshold (currently, 1024 characters).
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*
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* @type {string|null}
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*/
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this.consoleOutput = null;
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/**
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* controlIOBuffer is a DOM element bound to the port (currently used for output only; see transmitByte()).
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*
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* Example: CTTY COM2
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*
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* The CTTY DOS command redirects all CON I/O to the specified serial port (eg, COM2), which it assumes is
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* connected to a serial terminal, and therefore anything it *transmits* via COM2 will be displayed by the
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* terminal. It further assumes that anything typed on such a terminal is NOT displayed, so as DOS *receives*
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* serial input, DOS *transmits* the appropriate characters back to the terminal via COM2.
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*
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* As a result, controlIOBuffer only needs to be updated by the transmitByte() function.
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*
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* @type {Object}
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*/
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this.controlIOBuffer = null;
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/*
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* If controlIOBuffer is being used AND 'tabSize' is set, then we make an attempt to monitor the characters
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* being echoed via transmitByte(), maintain a logical column position, and convert any tabs into the appropriate
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* number of spaces.
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*
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* charBOL, if nonzero, is a character to automatically output at the beginning of every line. This probably
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* isn't generally useful; I use it internally to preformat serial output.
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*/
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this.tabSize = parmsSerial['tabSize'];
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this.charBOL = parmsSerial['charBOL'];
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this.iLogicalCol = 0;
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Component.call(this, "SerialPort", parmsSerial, SerialPortPDP11, MessagesPDP11.SERIAL);
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var sBinding = parmsSerial['binding'];
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if (sBinding == "console") {
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this.consoleOutput = "";
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} else {
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/*
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* NOTE: If sBinding is not the name of a valid Control Panel DOM element, this call does nothing.
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*/
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Component.bindExternalControl(this, sBinding, SerialPortPDP11.sIOBuffer);
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}
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/*
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* No connection until initConnection() is called.
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*/
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this.sDataReceived = "";
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this.connection = this.sendData = null;
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/*
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* Export all functions required by initConnection(); currently, this is the bare minimum (no flow control yet).
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*/
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this['exports'] = {
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'connect': this.initConnection,
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'receiveData': this.receiveData
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};
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}
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/*
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* class SerialPortPDP11
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* property {number} iAdapter
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* property {number} portBase
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* property {number} nIRQ
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* property {Object} controlIOBuffer is a DOM element bound to the port (for rudimentary output; see transmitByte())
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*
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* NOTE: This class declaration started as a way of informing the code inspector of the controlIOBuffer property,
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* which remained undefined until a setBinding() call set it later, but I've since decided that explicitly
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* initializing such properties in the constructor is a better way to go -- even though it's more code -- because
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* JavaScript compilers are supposed to be happier when the underlying object structures aren't constantly changing.
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*
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* Besides, I'm not sure I want to get into documenting every property this way, for this or any/every other class,
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* let alone getting into which ones should be considered private or protected, because PCjs isn't really a library
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* for third-party apps.
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*/
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Component.subclass(SerialPortPDP11);
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/*
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* Internal name used for the I/O buffer control, if any, that we bind to the SerialPort.
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*
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* Alternatively, if SerialPort wants to use another component's control (eg, the Panel's
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* "print" control), it can specify the name of that control with the 'binding' property.
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*
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* For that binding to succeed, we also need to know the target component; for now, that's
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* been hard-coded to "Panel", in part because that's one of the few components we can rely
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* upon initializing before we do, but it would be a simple matter to include a component type
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* or ID as part of the 'binding' property as well, if we need more flexibility later.
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*/
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SerialPortPDP11.sIOBuffer = "buffer";
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/**
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* setBinding(sType, sBinding, control, sValue)
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*
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* @this {SerialPortPDP11}
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* @param {string|null} sType is the type of the HTML control (eg, "button", "textarea", "register", "flag", "rled", etc)
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* @param {string} sBinding is the value of the 'binding' parameter stored in the HTML control's "data-value" attribute (eg, "buffer")
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* @param {Object} control is the HTML control DOM object (eg, HTMLButtonElement)
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* @param {string} [sValue] optional data value
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* @return {boolean} true if binding was successful, false if unrecognized binding request
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*/
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SerialPortPDP11.prototype.setBinding = function(sType, sBinding, control, sValue)
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{
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var serial = this;
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switch (sBinding) {
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case SerialPortPDP11.sIOBuffer:
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this.bindings[sBinding] = this.controlIOBuffer = control;
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/*
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* By establishing an onkeypress handler here, we make it possible for DOS commands like
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* "CTTY COM1" to more or less work (use "CTTY CON" to restore control to the DOS console).
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*/
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control.onkeydown = function onKeyDown(event) {
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/*
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* This is required in addition to onkeypress, because it's the only way to prevent
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* BACKSPACE (keyCode 8) from being interpreted by the browser as a "Back" operation;
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* moreover, not all browsers generate an onkeypress notification for BACKSPACE.
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*
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* A related problem exists for Ctrl-key combinations in most Windows-based browsers
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* (eg, IE, Edge, Chrome for Windows, etc), because keys like Ctrl-C and Ctrl-S have
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* special meanings (eg, Copy, Save). To the extent the browser will allow it, we
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* attempt to disable that default behavior when this control receives an onkeydown
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* event for one of those keys (probably the only event the browser generates for them).
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*/
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event = event || window.event;
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var keyCode = event.keyCode;
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if (keyCode === 0x08 || event.ctrlKey && keyCode >= 0x41 && keyCode <= 0x5A) {
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if (event.preventDefault) event.preventDefault();
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if (keyCode > 0x40) keyCode -= 0x40;
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serial.receiveData(keyCode);
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}
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return true;
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};
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control.onkeypress = function onKeyPress(event) {
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/*
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* Browser-independent keyCode extraction; refer to onKeyPress() and the other key event
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* handlers in keyboard.js.
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*/
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event = event || window.event;
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var keyCode = event.which || event.keyCode;
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serial.receiveData(keyCode);
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/*
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* Since we're going to remove the "readonly" attribute from the <textarea> control
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* (so that the soft keyboard activates on iOS), instead of calling preventDefault() for
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* selected keys (eg, the SPACE key, whose default behavior is to scroll the page), we must
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* now call it for *all* keys, so that the keyCode isn't added to the control immediately,
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* on top of whatever the machine is echoing back, resulting in double characters.
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*/
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if (event.preventDefault) event.preventDefault();
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return true;
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};
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/*
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* Now that we've added an onkeypress handler that calls preventDefault() for ALL keys, the control
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* itself no longer needs the "readonly" attribute; we primarily need to remove it for iOS browsers,
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* so that the soft keyboard will activate, but it shouldn't hurt to remove the attribute for all browsers.
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*/
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control.removeAttribute("readonly");
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return true;
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default:
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break;
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}
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return false;
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};
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/**
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* initBus(cmp, bus, cpu, dbg)
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*
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* @this {SerialPortPDP11}
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* @param {ComputerPDP11} cmp
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* @param {BusPDP11} bus
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* @param {CPUStatePDP11} cpu
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* @param {DebuggerPDP11} dbg
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*/
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SerialPortPDP11.prototype.initBus = function(cmp, bus, cpu, dbg)
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{
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this.cmp = cmp;
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this.bus = bus;
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this.cpu = cpu;
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this.dbg = dbg;
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var serial = this;
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this.triggerReceiveInterrupt = this.cpu.addTrigger(PDP11.DL11.RVEC, PDP11.DL11.PRI);
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this.timerReceiveInterrupt = this.cpu.addTimer(function readyReceiver() {
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if (!(serial.rcsr & PDP11.DL11.RCSR.RD)) {
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if (serial.abReceive.length) {
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/*
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* Here, as elsewhere (eg, the PC11 component), even if I trusted all incoming data
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* to be byte values (which I don't), there's also the risk that it could be signed data
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* (eg, -128 to 127, instead of 0 to 255). Both risks are good reasons to always mask
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* the data assigned to RBUF with 0xff.
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*/
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serial.rbuf = serial.abReceive.shift() & 0xff;
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if (serial.fUpperCase) {
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/*
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* Automatically transform lower-case ASCII codes to upper-case; fUpperCase should
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* only be set when a terminal or some sort of pseudo-display is being used and we don't
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* trust it to have its CAPS-LOCK setting correct.
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*/
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if (serial.rbuf >= 0x61 && serial.rbuf < 0x7A) {
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serial.rbuf -= 0x20;
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}
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}
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serial.rcsr |= PDP11.DL11.RCSR.RD;
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if (serial.rcsr & PDP11.DL11.RCSR.RIE) {
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serial.cpu.setTrigger(serial.triggerReceiveInterrupt);
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}
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}
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}
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});
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this.triggerTransmitInterrupt = this.cpu.addTrigger(PDP11.DL11.XVEC, PDP11.DL11.PRI);
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this.timerTransmitInterrupt = this.cpu.addTimer(function readyTransmitter() {
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serial.xcsr |= PDP11.DL11.XCSR.READY;
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if (serial.xcsr & PDP11.DL11.XCSR.TIE) {
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serial.cpu.setTrigger(serial.triggerTransmitInterrupt);
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}
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});
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bus.addIOTable(this, SerialPortPDP11.UNIBUS_IOTABLE);
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this.setReady();
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};
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/**
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* initConnection()
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*
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* If a machine 'connection' parameter exists of the form "{sourcePort}->{targetMachine}.{targetPort}",
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* and "{sourcePort}" matches our idComponent, then look for a component with id "{targetMachine}.{targetPort}".
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*
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* If the target component is found, then verify that it has exported functions with the following names:
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*
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* receiveData(data): called when we have data to transmit; aliased internally to sendData(data)
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*
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* For now, we're not going to worry about communication in the other direction, because when the target component
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* performs its own initConnection(), it will find our receiveData() function, at which point communication in both
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* directions should be established.
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*
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* For added robustness, if the target machine initializes much more slowly than we do, and our connection attempt
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* fails, that's OK, because when it finally initializes, its initConnection() will call our initConnection();
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* if we've already initialized, no harm done.
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*
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* @this {SerialPortPDP11}
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*/
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SerialPortPDP11.prototype.initConnection = function()
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{
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if (!this.connection) {
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var sConnection = this.cmp.getMachineParm("connection");
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if (sConnection) {
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var asParts = sConnection.split('->');
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if (asParts.length == 2) {
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var sSourceID = str.trim(asParts[0]);
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if (sSourceID != this.idComponent) return; // this connection string is intended for another instance
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var sTargetID = str.trim(asParts[1]);
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this.connection = Component.getComponentByID(sTargetID);
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if (this.connection) {
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var exports = this.connection['exports'];
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if (exports) {
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var fnConnect = exports['connect'];
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if (fnConnect) fnConnect.call(this.connection);
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this.sendData = exports['receiveData'];
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if (this.sendData) {
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this.status(this.idMachine + '.' + sSourceID + " connected to " + sTargetID);
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return;
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}
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}
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}
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}
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/*
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* Changed from notice() to status() because sometimes a connection fails simply because one of us is a laggard.
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*/
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this.status("Unable to establish connection: " + sConnection);
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}
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}
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};
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/**
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* powerUp(data, fRepower)
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*
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* @this {SerialPortPDP11}
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* @param {Object|null} data
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* @param {boolean} [fRepower]
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* @return {boolean} true if successful, false if failure
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*/
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SerialPortPDP11.prototype.powerUp = function(data, fRepower)
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{
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if (!fRepower) {
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/*
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* This is as late as we can currently wait to make our first inter-machine connection attempt;
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* even so, the target machine's initialization process may still be ongoing, so any connection
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* may be not fully resolved until the target machine performs its own initConnection(), which will
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* in turn invoke our initConnection() again.
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*/
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this.initConnection();
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if (!data || !this.restore) {
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this.reset();
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} else {
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if (!this.restore(data)) return false;
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}
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}
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return true;
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};
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/**
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* powerDown(fSave, fShutdown)
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*
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* @this {SerialPortPDP11}
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* @param {boolean} [fSave]
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* @param {boolean} [fShutdown]
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* @return {Object|boolean} component state if fSave; otherwise, true if successful, false if failure
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*/
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SerialPortPDP11.prototype.powerDown = function(fSave, fShutdown)
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{
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return fSave? this.save() : true;
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};
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/**
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* reset()
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*
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* @this {SerialPortPDP11}
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*/
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SerialPortPDP11.prototype.reset = function()
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{
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this.initState();
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};
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/**
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* save()
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*
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* This implements save support for the SerialPort component.
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*
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* @this {SerialPortPDP11}
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* @return {Object}
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*/
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SerialPortPDP11.prototype.save = function()
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{
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var state = new State(this);
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state.set(0, this.saveRegisters());
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return state.data();
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};
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/**
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* restore(data)
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*
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* This implements restore support for the SerialPort component.
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*
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* @this {SerialPortPDP11}
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* @param {Object} data
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* @return {boolean} true if successful, false if failure
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*/
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SerialPortPDP11.prototype.restore = function(data)
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{
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return this.initState(data[0]);
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};
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/**
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* initState(data)
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*
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* @this {SerialPortPDP11}
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* @param {Array} [data]
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* @return {boolean} true if successful, false if failure
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*/
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SerialPortPDP11.prototype.initState = function(data)
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{
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this.rbuf = 0;
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this.rcsr = 0;
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this.xcsr = PDP11.DL11.XCSR.READY;
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this.abReceive = [];
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return true;
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};
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/**
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* saveRegisters()
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*
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* @this {SerialPortPDP11}
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* @return {Array}
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*/
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SerialPortPDP11.prototype.saveRegisters = function()
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{
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return [];
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};
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/**
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* getBaudTimeout(nBaud)
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|
*
|
|
* Based on the selected baud rate (nBaud), convert that rate into a millisecond delay.
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} nBaud
|
|
* @return {number} (number of milliseconds per byte)
|
|
*/
|
|
SerialPortPDP11.prototype.getBaudTimeout = function(nBaud)
|
|
{
|
|
/*
|
|
* TODO: Do a better job computing this, based on actual numbers of start, stop and parity bits,
|
|
* instead of hard-coding the total number of bits per byte to 10.
|
|
*/
|
|
var nBytesPerSecond = Math.round(nBaud / 10);
|
|
return 1000 / nBytesPerSecond;
|
|
};
|
|
|
|
/**
|
|
* receiveData(data)
|
|
*
|
|
* This replaces the old sendRBR() function, which expected an Array of bytes. We still support that,
|
|
* but in order to support connections with other SerialPort components (ie, the PC8080 SerialPort), we
|
|
* have added support for numbers and strings as well.
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number|string|Array} data
|
|
* @return {boolean} true if received, false if not
|
|
*/
|
|
SerialPortPDP11.prototype.receiveData = function(data)
|
|
{
|
|
if (typeof data == "number") {
|
|
this.abReceive.push(data);
|
|
}
|
|
else if (typeof data == "string") {
|
|
for (var i = 0; i < data.length; i++) {
|
|
this.abReceive.push(data.charCodeAt(i));
|
|
}
|
|
}
|
|
else {
|
|
this.abReceive = this.abReceive.concat(data);
|
|
}
|
|
this.cpu.setTimer(this.timerReceiveInterrupt, this.getBaudTimeout(this.nBaudReceive));
|
|
return true; // for now, return true regardless, since we're buffering everything anyway
|
|
};
|
|
|
|
/**
|
|
* transmitByte(b)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} b
|
|
* @return {boolean} true if transmitted, false if not
|
|
*/
|
|
SerialPortPDP11.prototype.transmitByte = function(b)
|
|
{
|
|
var fTransmitted = false;
|
|
|
|
this.printMessage("transmitByte(" + str.toHexByte(b) + ")");
|
|
|
|
if (this.sendData) {
|
|
if (this.sendData.call(this.connection, b)) {
|
|
fTransmitted = true;
|
|
}
|
|
}
|
|
|
|
if (this.controlIOBuffer) {
|
|
if (b == 0x0D) {
|
|
this.iLogicalCol = 0;
|
|
}
|
|
else if (b == 0x08) {
|
|
this.controlIOBuffer.value = this.controlIOBuffer.value.slice(0, -1);
|
|
/*
|
|
* TODO: Back up the correct number of columns if the character erased was a tab.
|
|
*/
|
|
if (this.iLogicalCol > 0) this.iLogicalCol--;
|
|
}
|
|
else {
|
|
var s = str.toASCIICode(b); // formerly: String.fromCharCode(b);
|
|
var nChars = s.length; // formerly: (b >= 0x20? 1 : 0);
|
|
if (b < 0x20 && nChars == 1) nChars = 0;
|
|
if (b == 0x09) {
|
|
var tabSize = this.tabSize || 8;
|
|
nChars = tabSize - (this.iLogicalCol % tabSize);
|
|
if (this.tabSize) s = str.pad("", nChars);
|
|
}
|
|
if (this.charBOL && !this.iLogicalCol && nChars) s = String.fromCharCode(this.charBOL) + s;
|
|
this.controlIOBuffer.value += s;
|
|
this.controlIOBuffer.scrollTop = this.controlIOBuffer.scrollHeight;
|
|
this.iLogicalCol += nChars;
|
|
}
|
|
fTransmitted = true;
|
|
}
|
|
else if (this.consoleOutput != null) {
|
|
if (b == 0x0A || this.consoleOutput.length >= 1024) {
|
|
this.println(this.consoleOutput);
|
|
this.consoleOutput = "";
|
|
}
|
|
if (b != 0x0A) {
|
|
this.consoleOutput += String.fromCharCode(b);
|
|
}
|
|
fTransmitted = true;
|
|
}
|
|
|
|
return fTransmitted;
|
|
};
|
|
|
|
/**
|
|
* readRCSR(addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} addr (eg, PDP11.UNIBUS.RCSR or 177560)
|
|
* @return {number}
|
|
*/
|
|
SerialPortPDP11.prototype.readRCSR = function(addr)
|
|
{
|
|
return this.rcsr & PDP11.DL11.RCSR.RMASK;
|
|
};
|
|
|
|
/**
|
|
* writeRCSR(data, addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} data
|
|
* @param {number} addr (eg, PDP11.UNIBUS.RCSR or 177560)
|
|
*/
|
|
SerialPortPDP11.prototype.writeRCSR = function(data, addr)
|
|
{
|
|
this.rcsr = (this.rcsr & ~PDP11.DL11.RCSR.WMASK) | (data & PDP11.DL11.RCSR.WMASK);
|
|
};
|
|
|
|
/**
|
|
* readRBUF(addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} addr (eg, PDP11.UNIBUS.RBUF or 177562)
|
|
* @return {number}
|
|
*/
|
|
SerialPortPDP11.prototype.readRBUF = function(addr)
|
|
{
|
|
this.rcsr &= ~PDP11.DL11.RCSR.RD;
|
|
if (this.abReceive.length > 0) {
|
|
this.cpu.setTimer(this.timerReceiveInterrupt, this.getBaudTimeout(this.nBaudReceive));
|
|
}
|
|
return this.rbuf;
|
|
};
|
|
|
|
/**
|
|
* writeRBUF(data, addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} data
|
|
* @param {number} addr (eg, PDP11.UNIBUS.RBUF or 177562)
|
|
*/
|
|
SerialPortPDP11.prototype.writeRBUF = function(data, addr)
|
|
{
|
|
};
|
|
|
|
/**
|
|
* readXCSR(addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} addr (eg, PDP11.UNIBUS.XCSR or 177564)
|
|
* @return {number}
|
|
*/
|
|
SerialPortPDP11.prototype.readXCSR = function(addr)
|
|
{
|
|
return this.xcsr;
|
|
};
|
|
|
|
/**
|
|
* writeXCSR(data, addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} data
|
|
* @param {number} addr (eg, PDP11.UNIBUS.XCSR or 177564)
|
|
*/
|
|
SerialPortPDP11.prototype.writeXCSR = function(data, addr)
|
|
{
|
|
/*
|
|
* If the device is READY, and IE is transitioning on, then request an interrupt.
|
|
*/
|
|
if ((this.xcsr & (PDP11.DL11.XCSR.READY | PDP11.DL11.XCSR.TIE)) == PDP11.DL11.XCSR.READY && (data & PDP11.DL11.XCSR.TIE)) {
|
|
this.cpu.setTimer(this.timerTransmitInterrupt, this.getBaudTimeout(this.nBaudTransmit));
|
|
}
|
|
this.xcsr = (this.xcsr & ~PDP11.DL11.XCSR.WMASK) | (data & PDP11.DL11.XCSR.WMASK);
|
|
};
|
|
|
|
/**
|
|
* readXBUF(addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} addr (eg, PDP11.UNIBUS.XBUF or 177566)
|
|
* @return {number}
|
|
*/
|
|
SerialPortPDP11.prototype.readXBUF = function(addr)
|
|
{
|
|
return 0;
|
|
};
|
|
|
|
/**
|
|
* writeXBUF(data, addr)
|
|
*
|
|
* @this {SerialPortPDP11}
|
|
* @param {number} data
|
|
* @param {number} addr (eg, PDP11.UNIBUS.XBUF or 177566)
|
|
*/
|
|
SerialPortPDP11.prototype.writeXBUF = function(data, addr)
|
|
{
|
|
data &= PDP11.DL11.XBUF.DATA;
|
|
if (data) {
|
|
this.transmitByte(data);
|
|
this.xcsr &= ~PDP11.DL11.XCSR.READY;
|
|
this.cpu.setTimer(this.timerTransmitInterrupt, this.getBaudTimeout(this.nBaudTransmit));
|
|
}
|
|
};
|
|
|
|
/*
|
|
* ES6 ALERT: As you can see below, I've finally started using computed property names.
|
|
*/
|
|
SerialPortPDP11.UNIBUS_IOTABLE = {
|
|
[PDP11.UNIBUS.RCSR]: /* 177560 */ [null, null, SerialPortPDP11.prototype.readRCSR, SerialPortPDP11.prototype.writeRCSR, "RCSR"],
|
|
[PDP11.UNIBUS.RBUF]: /* 177562 */ [null, null, SerialPortPDP11.prototype.readRBUF, SerialPortPDP11.prototype.writeRBUF, "RBUF"],
|
|
[PDP11.UNIBUS.XCSR]: /* 177564 */ [null, null, SerialPortPDP11.prototype.readXCSR, SerialPortPDP11.prototype.writeXCSR, "XCSR"],
|
|
[PDP11.UNIBUS.XBUF]: /* 177566 */ [null, null, SerialPortPDP11.prototype.readXBUF, SerialPortPDP11.prototype.writeXBUF, "XBUF"]
|
|
};
|
|
|
|
/**
|
|
* SerialPortPDP11.init()
|
|
*
|
|
* This function operates on every HTML element of class "serial", extracting the
|
|
* JSON-encoded parameters for the SerialPort constructor from the element's "data-value"
|
|
* attribute, invoking the constructor to create a SerialPort component, and then binding
|
|
* any associated HTML controls to the new component.
|
|
*/
|
|
SerialPortPDP11.init = function()
|
|
{
|
|
var aeSerial = Component.getElementsByClass(document, PDP11.APPCLASS, "serial");
|
|
for (var iSerial = 0; iSerial < aeSerial.length; iSerial++) {
|
|
var eSerial = aeSerial[iSerial];
|
|
var parmsSerial = Component.getComponentParms(eSerial);
|
|
var serial = new SerialPortPDP11(parmsSerial);
|
|
Component.bindComponentControls(serial, eSerial, PDP11.APPCLASS);
|
|
}
|
|
};
|
|
|
|
/*
|
|
* Initialize every SerialPort module on the page.
|
|
*/
|
|
web.onInit(SerialPortPDP11.init);
|
|
|
|
if (NODE) module.exports = SerialPortPDP11;
|