85 lines
3 KiB
JavaScript
85 lines
3 KiB
JavaScript
/**
|
|
* @fileoverview Implements RK11 device support.
|
|
* @author <a href="mailto:Jeff@pcjs.org">Jeff Parsons</a>
|
|
* @copyright © Jeff Parsons 2012-2016
|
|
*
|
|
* This file is part of PCjs, a computer emulation software project at <http://pcjs.org/>.
|
|
*
|
|
* It has been adapted from the JavaScript PDP 11/70 Emulator v1.4 written by Paul Nankervis
|
|
* (paulnank@hotmail.com) as of September 2016 at <http://skn.noip.me/pdp11/pdp11.html>. This code
|
|
* may be used freely provided the original authors are acknowledged in any modified source code.
|
|
*
|
|
* PCjs is free software: you can redistribute it and/or modify it under the terms of the
|
|
* GNU General Public License as published by the Free Software Foundation, either version 3
|
|
* of the License, or (at your option) any later version.
|
|
*
|
|
* PCjs is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without
|
|
* even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License along with PCjs. If not,
|
|
* see <http://www.gnu.org/licenses/gpl.html>.
|
|
*
|
|
* You are required to include the above copyright notice in every modified copy of this work
|
|
* and to display that copyright notice when the software starts running; see COPYRIGHT in
|
|
* <http://pcjs.org/modules/shared/lib/defines.js>.
|
|
*
|
|
* Some PCjs files also attempt to load external resource files, such as character-image files,
|
|
* ROM files, and disk image files. Those external resource files are not considered part of PCjs
|
|
* for purposes of the GNU General Public License, and the author does not claim any copyright
|
|
* as to their contents.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
if (NODE) {
|
|
var web = require("../../shared/lib/weblib");
|
|
var Component = require("../../shared/lib/component");
|
|
var State = require("../../shared/lib/state");
|
|
var BusPDP11 = require("./bus");
|
|
}
|
|
|
|
/**
|
|
* RK11(parmsDevice)
|
|
*
|
|
* @constructor
|
|
* @extends Component
|
|
* @param {Object} parmsRK11
|
|
*/
|
|
function RK11(parmsRK11)
|
|
{
|
|
Component.call(this, "RK11", parmsRK11, RK11);
|
|
|
|
this.rkds = 0x9C0;/*04700*/ // 017777400 Drive Status
|
|
this.rker = 0; // 017777402 Error Register
|
|
this.rkcs = 0x80; /*0200*/ // 017777404 Control Status
|
|
this.rkwc = 0; // 017777406 Word Count
|
|
this.rkba = 0; // 017777410 Bus Address
|
|
this.rkda = 0; // 017777412 Disk Address
|
|
this.rkdb = 0; // 017777416 Data Buffer
|
|
this.meta = [];
|
|
this.TRACKS = [406, 406, 406, 406];
|
|
this.SECTORS = [12, 12, 12, 12];
|
|
}
|
|
|
|
Component.subclass(RK11);
|
|
|
|
/**
|
|
* initBus(cmp, bus, cpu, dbg)
|
|
*
|
|
* @this {DevicePDP11}
|
|
* @param {ComputerPDP11} cmp
|
|
* @param {BusPDP11} bus
|
|
* @param {CPUStatePDP11} cpu
|
|
* @param {DebuggerPDP11} dbg
|
|
*/
|
|
RK11.prototype.initBus = function(cmp, bus, cpu, dbg)
|
|
{
|
|
this.bus = bus;
|
|
this.cpu = cpu;
|
|
this.dbg = dbg;
|
|
|
|
this.setReady();
|
|
};
|
|
|
|
if (NODE) module.exports = RK11;
|