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Initial commit (a clone of the jsmachines project as of v1.15.3)

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jeffpar 2014-09-27 14:52:57 -07:00
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my_modules/c1pjs-client/lib/ram.js Normal file
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/**
* @fileoverview This file implements the C1Pjs RAM component.
* @author <a href="mailto:Jeff@pcjs.org">Jeff Parsons</a>
* @version 1.0
* @suppress {missingProperties}
* Created 2012-Jun-15
*
* Copyright © 2012-2014 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 Computer.sCopyright).
*
* 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(Component, 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 element (e) of class "ram", and initializes
* all the necessary HTML to construct the RAM module(s) as spec'ed.
*
* Note that each element (e) of class "ram" is expected to have a "data-value"
* attribute containing the same JSON-encoded parameters that the RAM constructor
* expects.
*/
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);