1 /*
2 * Copyright (c) 2001, Zoltan Farkas All Rights Reserved.
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this program; if not, write to the Free Software
16 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
17 */
18
19 package net.sf.zel.instr;
20
21 import net.sf.zel.vm.*;
22
23 /**
24 * <p>Title: CPUSH</p>
25 * <p>Description: Save current mem context to the context stack </p>
26 */
27 public final class CPUSH extends Instruction
28 {
29 private static final long serialVersionUID = -7521456154985782849L;
30
31 private CPUSH(){};
32
33 /**
34 * CPUSH Instruction microcode
35 * @param context ExecutionContext
36 */
37 public void execute(ExecutionContext context)
38 {
39 context.memContextStack.push(context.memContext);
40 context.ip++;
41 }
42 /**
43 * instance
44 */
45 public static final Instruction instance = new CPUSH();
46 }