New PDP11 Device component can now register read/write handlers for selected I/O addresses
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Jeff Parsons
Jeff Parsons
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614fc11aca
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12 changed files with 666 additions and 376 deletions
139
modules/pdp11/lib/device.js
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139
modules/pdp11/lib/device.js
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/**
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* @fileoverview Implements the PDP11 device support.
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* @author <a href="mailto:Jeff@pcjs.org">Jeff Parsons</a>
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* @version 1.0
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* Created 2016-Sep-20
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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 v1.3 written by Paul Nankervis
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* (paulnank@hotmail.com) as of August 2016 from http://skn.noip.me/pdp11/pdp11.html. This code
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* may be used freely provided the original author name is 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 source code file of every
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* copy or modified version of this work, and to display that copyright notice on every screen
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* that loads or runs any version of this software (see COPYRIGHT in /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 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 BusPDP11 = require("./memory");
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}
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/**
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* DevicePDP11(parmsDevice)
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*
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* The DevicePDP11 component supports the following (parmsDevice) properties:
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*
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* name: the name of the device to be supported (eg, "unibus" for generic UNIBUS support)
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*
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* @constructor
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* @extends Component
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* @param {Object} parmsDevice
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*/
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function DevicePDP11(parmsDevice)
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{
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Component.call(this, "Device", parmsDevice, DevicePDP11);
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this.sDeviceName = parmsDevice['name'];
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}
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Component.subclass(DevicePDP11);
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DevicePDP11.UNIBUS_NAME = "unibus";
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DevicePDP11.ADDR_PSW = 0x3FFFFE; /*017777776*/ // PSW
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/**
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* initBus(cmp, bus, cpu, dbg)
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*
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* @this {DevicePDP11}
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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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DevicePDP11.prototype.initBus = function(cmp, bus, cpu, dbg)
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{
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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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switch(this.sDeviceName) {
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case DevicePDP11.UNIBUS_NAME:
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default:
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bus.addIOTable(this, DevicePDP11.UNIBUS_TABLE);
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break;
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}
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this.setReady();
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};
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/**
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* readPSW(addr)
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*
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* @this {DevicePDP11}
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* @param {number} [addr]
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* @return {number}
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*/
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DevicePDP11.prototype.readPSW = function(addr)
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{
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return this.cpu.readPSW();
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};
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/**
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* writePSW(data, addr)
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*
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* @this {DevicePDP11}
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* @param {number} data
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* @param {number} [addr]
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*/
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DevicePDP11.prototype.writePSW = function(data, addr)
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{
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this.cpu.writePSW(data);
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};
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DevicePDP11.UNIBUS_TABLE = {};
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DevicePDP11.UNIBUS_TABLE[DevicePDP11.ADDR_PSW] = [DevicePDP11.prototype.readPSW, DevicePDP11.prototype.writePSW];
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/**
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* DevicePDP11.init()
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*
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* This function operates on every HTML element of class "device", extracting the
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* JSON-encoded parameters for the DevicePDP11 constructor from the element's "data-value"
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* attribute, invoking the constructor to create a DevicePDP11 component, and then binding
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* any associated HTML controls to the new component.
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*/
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DevicePDP11.init = function()
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{
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var aeDevice = Component.getElementsByClass(document, PDP11.APPCLASS, "device");
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for (var iDevice = 0; iDevice < aeDevice.length; iDevice++) {
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var eDevice = aeDevice[iDevice];
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var parmsDevice = Component.getComponentParms(eDevice);
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var device = new DevicePDP11(parmsDevice);
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Component.bindComponentControls(device, eDevice, PDP11.APPCLASS);
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}
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};
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/*
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* Initialize all the DevicePDP11 modules on the page.
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*/
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web.onInit(DevicePDP11.init);
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if (NODE) module.exports = DevicePDP11;
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