93 lines
3.1 KiB
JavaScript
93 lines
3.1 KiB
JavaScript
/**
|
|
* @fileoverview This file implements the C1Pjs RAM component.
|
|
* @author <a href="mailto:Jeff@pcjs.org">Jeff Parsons</a>
|
|
* @version 1.0
|
|
* Created 2012-Jun-15
|
|
*
|
|
* Copyright © 2012-2016 Jeff Parsons <Jeff@pcjs.org>
|
|
*
|
|
* This file is part of C1Pjs, which is part of the JavaScript Machines Project (aka JSMachines)
|
|
* at <http://jsmachines.net/> and <http://pcjs.org/>.
|
|
*
|
|
* C1Pjs 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.
|
|
*
|
|
* C1Pjs 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 C1Pjs. If not,
|
|
* see <http://www.gnu.org/licenses/gpl.html>.
|
|
*
|
|
* You are required to include the above copyright notice in every source code file of every
|
|
* copy or modified version of this work, and to display that copyright notice on every screen
|
|
* that loads or runs any version of this software (see C1PComputer.COPYRIGHT).
|
|
*
|
|
* Some C1Pjs 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 the
|
|
* C1Pjs program for purposes of the GNU General Public License, and the author does not claim
|
|
* any copyright as to their contents.
|
|
*/
|
|
|
|
"use strict";
|
|
|
|
/**
|
|
* C1PRAM(parmsRAM)
|
|
*
|
|
* The RAM component expects the following (parmsRAM) properties:
|
|
*
|
|
* size: amount of RAM, in bytes
|
|
*
|
|
* NOTE: We may make a note of the specified size, but we will not actually allocate
|
|
* any memory for the RAM; we wait for the Computer object to tell us where our RAM is,
|
|
* using the setBuffer() method.
|
|
*
|
|
* @constructor
|
|
* @extends Component
|
|
*/
|
|
function C1PRAM(parmsRAM)
|
|
{
|
|
Component.call(this, "C1PRAM", parmsRAM);
|
|
}
|
|
|
|
Component.subclass(C1PRAM);
|
|
|
|
/**
|
|
* @this {C1PRAM}
|
|
* @param {Array} abMemory
|
|
* @param {number} start
|
|
* @param {number} end
|
|
* @param {C1PCPU} cpu
|
|
*/
|
|
C1PRAM.prototype.setBuffer = function(abMemory, start, end, cpu)
|
|
{
|
|
this.abMem = abMemory;
|
|
// this.offRAM = start;
|
|
// this.cbRAM = end - start + 1;
|
|
this.setReady();
|
|
};
|
|
|
|
/**
|
|
* C1PRAM.init()
|
|
*
|
|
* This function operates on every HTML element of class "ram", extracting the
|
|
* JSON-encoded parameters for the C1PRAM constructor from the element's "data-value"
|
|
* attribute, invoking the constructor to create a C1PRAM component, and then binding
|
|
* any associated HTML controls to the new component.
|
|
*/
|
|
C1PRAM.init = function()
|
|
{
|
|
var aeRAM = Component.getElementsByClass(window.document, C1PJSCLASS, "ram");
|
|
for (var iRAM=0; iRAM < aeRAM.length; iRAM++) {
|
|
var eRAM = aeRAM[iRAM];
|
|
var parmsRAM = Component.getComponentParms(eRAM);
|
|
var ram = new C1PRAM(parmsRAM);
|
|
Component.bindComponentControls(ram, eRAM, C1PJSCLASS);
|
|
}
|
|
};
|
|
|
|
/*
|
|
* Initialize all the RAM modules on the page.
|
|
*/
|
|
web.onInit(C1PRAM.init);
|