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File org.dgpf.gp.vm.instructions.base.MemInstr2Handler.java

Here you can find all the information about the file org.dgpf.gp.vm.instructions.base.MemInstr2Handler.java. You may explore it here or download it onto your local disk.
/*
 * Copyright (c) 2006 Thomas Weise
 * 
 * E-Mail           : tweise@gmx.de
 * Creation Date    : 2006-07-03 04:10:21
 * Original Filename: org.dgpf.gp.vm.instructions.base.MemInstr2Handler.java
 * Version          : 1.0.0
 * Last modification: 2006-07-03
 *                by: Thomas Weise
 * 
 * License          : GNU LESSER GENERAL PUBLIC LICENSE
 *                    Version 2.1, February 1999
 *                    You should have received a copy of this license along
 *                    with this library; if not, write to the Free Software
 *                    Foundation, Inc., 59 Temple Place, Suite 330, Boston,
 *                    MA 02111-1307, USA or download the license under
 *                    http://www.gnu.org/copyleft/lesser.html.
 *                    
 * Warranty         : This software is provided "as is" without any
 *                    warranty; without even the implied warranty of
 *                    merchantability or fitness for a particular purpose.
 *                    See the Gnu Lesser General Public License for more
 *                    details.
 */

 
package org.dgpf.gp.vm.instructions.base;

import org.dgpf.gp.vm.base.IInstructionHandler;
import org.dgpf.gp.vm.base.Instruction;
import org.dgpf.gp.vm.base.VMContext;
import org.dgpf.gp.vm.mutation.MutationInfo;
import org.dgpf.search.api.utils.IMutator;
import org.dgpf.search.api.utils.WeightedSet;
import org.dgpf.search.api.utils.WeightedSetBuilder;
import org.sfc.math.stochastic.Randomizer;


/**
 * The base class for memory 1 instruction handlers.
 *
 * @author Thomas Weise
 */

public abstract class       MemInstr2Handler 
                extends     MemInstr1Handler
  {
///**
// * The first internal mutator.
// */

//  private static  final IMutator<Instruction, VMContext, MutationInfo> M21 =
//    new IMutator<Instruction, VMContext, MutationInfo>()
//      {
//      public  final  Instruction  mutate  (final Instruction  p_source,
//                                           final VMContext    p_context,
//                                           final MutationInfo p_info)
//        {
//        MemInstr2 l_i;
//        
//        if(p_context.can_relative())
//          {
//          l_i = ((MemInstr2)(p_source.clone()));
//          l_i.m_relative_2 = !(l_i.m_relative_2);
//          return l_i;
//          }
//        return p_source;
//        }
//      };
//      
//
///**
// * The second internal mutator.
// */

//  private static  final IMutator<Instruction, VMContext, MutationInfo> M22 =
//    new IMutator<Instruction, VMContext, MutationInfo>()
//      {
//      public  final  Instruction  mutate  (final Instruction  p_source,
//                                           final VMContext    p_context,
//                                           final MutationInfo p_info)
//        {
//        MemInstr2 l_i;
//        
//        l_i = ((MemInstr2)(p_source.clone()));
//        l_i.m_addr_2 = p_context.mutate_address(l_i.m_addr_2, p_info);
//        return l_i;
//        }
//      };
//  


/**
 * The third internal mutator.
 */

  private static  final IMutator<Instruction, VMContext, MutationInfo> M23 =
    new IMutator<Instruction, VMContext, MutationInfo>()
      {
      public  final  Instruction  mutate  (final Instruction  p_source,
                                           final VMContext    p_context,
                                           final MutationInfo p_info)
        {
        MemInstr2                                 l_i, l_i2;
        IInstructionHandler                       l_ii, l_io;
        WeightedSet<IInstructionHandler>.Session  l_s;
        
        l_i  = ((MemInstr2)(p_source));
        l_io = l_i.get_handler();
        l_s  = p_context.get_instruction_set().open_session(
                                               p_context.get_randomizer());
        
        while(l_s.hasNext())
          {
          l_ii = l_s.next();
          if((l_ii != l_io) && (l_ii instanceof MemInstr2Handler))
            {
            l_i2 = ((MemInstr2)(l_ii.create(p_context, p_info)));
            l_i2.m_addr_1     = l_i.m_addr_1;
            l_i2.m_relative_1 = l_i.m_relative_1;
            l_i2.m_addr_2     = l_i.m_addr_2;
            l_i2.m_relative_2 = l_i.m_relative_2;
            l_s.close();
            return l_i2;
            }
          }
        
        l_s.close();
        return l_i;
        }
      };
      
      
/**
 * The default weighted set builder.
 */

  static  final WeightedSetBuilder<IMutator
                             <Instruction, VMContext, MutationInfo>>
    MI2B = new WeightedSetBuilder<IMutator
                   <Instruction, VMContext, MutationInfo>>(IMutator.class);
  
  static
    {
    MI2B.add(MI1B);
//    MI2B.add(M21, M1_WEIGHT);    
//    MI2B.add(M22, M2_WEIGHT);    
    MI2B.add(M23, M3_WEIGHT);
    }
  
/**
 * Create a new mem instr 1 handler. Such handlers use internal mutator
 * lists.
 * @param p_wsb The weighted set builder to use. Leave this
 *              <code>null</code> if no additional mutators are needed.
 */

  protected MemInstr2Handler(final WeightedSetBuilder<IMutator
                             <Instruction, VMContext, MutationInfo>> p_wsb)
    {
    super(build_set(p_wsb));
    }
  
/**
 * The internal set conversion routine.
 * @param p_set The normal mutator set.
 * @return  The modified mutator set.
 */

  private static final WeightedSetBuilder<IMutator
                       <Instruction, VMContext, MutationInfo>> build_set
                       (final WeightedSetBuilder<IMutator
                        <Instruction, VMContext, MutationInfo>> p_set)
    {
    if(p_set == null) return MI2B;
    
//    if(!(p_set.contains(M21))) p_set.add(M21, M1_WEIGHT);    
//    if(!(p_set.contains(M22))) p_set.add(M22, M2_WEIGHT);    
    if(!(p_set.contains(M23))) p_set.add(M23, M3_WEIGHT);
    
    return p_set;
    }
              

/**
 * Replace a memory access address by another one.
 * @param p_instruction The instruction to replace the address.
 * @param p_old         The old address.
 * @param p_new         The new address.
 * @return  The new instruction where the address relacement has been
 *          performed, or the old one if no replacement was needed.  
 */

  @Override
  public Instruction swap_address(final Instruction p_instruction,
                                  final int         p_old,
                                  final int         p_new)
    {
    MemInstr2 l_m2;
    
    l_m2 = ((MemInstr2)(super.swap_address(p_instruction, p_old, p_new)));
    if(l_m2.m_addr_2 == p_old)
      {
      if(p_instruction == l_m2) l_m2 = ((MemInstr2)(l_m2.clone()));
      l_m2.m_addr_2 = p_new;
      return l_m2;
      }
    
    return p_instruction;
    }
  
/**
 * An address helper object.
 *
 * @author Thomas Weise
 */

  protected static  final class Addresses
    {
/**
 * The address data.
 */

    public  final int[]       m_addr  ;
/**
 * The relative data.
 */

    public  final boolean[]   m_rel  ;
    
/**
 * Create a new set of addresses.
 * @param p_count   The count of addresses required.
 * @param p_c       The VM-context to be used.
 * @param p_info    The mutation info.
 */

    public  Addresses (final int          p_count,
                       final VMContext    p_c,
                       final MutationInfo p_info)
      {
      super();
           
      this.m_addr = new int[p_count];
      this.m_rel  = new boolean[p_count];
      this.compute(p_c, p_info);
      }
    
/**
 * Compute the values of this address set.
 * @param p_c     The context.
 * @param p_info  The info.
 */

    public  final void  compute(final VMContext    p_c,
                                final MutationInfo p_info)
      {
      int[]       l_a;
      boolean[]   l_r;
      int         l_i, l_j, l_z, l_count;
      boolean     l_b, l_t;
      Randomizer  l_x;
      
      l_r     = this.m_rel;
      l_a     = this.m_addr;
      l_count = l_a.length;
      l_x     = p_c.get_randomizer();
      l_z     = (Math.min(l_count, 2));
      l_t     = ((p_c.get_max_mem_size()<<1) > l_z);
                    
main:
      for(l_i = 0; l_i < l_z; l_i++)
        {
        l_a[l_i] = p_c.random_address(p_info);
        l_r[l_i] = p_c.create_relative();
        
        for(l_j = (l_i-1); l_j >= 0; l_j--)
          {
          if((l_a[l_i] == l_a[l_j]) && (l_r[l_i] == l_r[l_j]) &&
             (l_x.nextInt(10) > 0) && l_t && l_x.nextBoolean())
            {
            l_i--;            
            continue main;
            }
          }
        }
     
      for(; l_z < l_count; l_z++)
        {
        l_i = l_x.nextInt(l_z);
        l_r[l_z] = l_r[l_i];
        l_a[l_z] = l_a[l_i];
        }                    
      
    
      for(l_i = (l_count-1); l_i >= 0; l_i--)
        {
        l_j = l_x.nextInt(l_count);
        
        l_z      = l_a[l_j];
        l_a[l_j] = l_a[l_i];
        l_a[l_i] = l_z;
        
        l_b      = l_r[l_j];
        l_r[l_j] = l_r[l_i];
        l_r[l_i] = l_b;
        }
      }
    }
  }

File Information:

file name:MemInstr2Handler.java
package:org.dgpf.gp.vm.instructions.base
qualified name:org.dgpf.gp.vm.instructions.base.MemInstr2Handler.java
file type:Java Source File
download location:download http://dgpf.sourceforge.net/source/org/dgpf/gp/vm/instructions/base/MemInstr2Handler.java
size:9.132 KB (9352 B)
uploaded: 2018-01-07 12:03:35 GMT+0000
last update: 2006-07-28 08:10:29 GMT+0000
last access: 2018-01-07 12:03:35 GMT+0000

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Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/project-web/dgpf/htdocs/scripts/datetime.php on line 16

Warning: date(): It is not safe to rely on the system's timezone settings. You are *required* to use the date.timezone setting or the date_default_timezone_set() function. In case you used any of those methods and you are still getting this warning, you most likely misspelled the timezone identifier. We selected the timezone 'UTC' for now, but please set date.timezone to select your timezone. in /home/project-web/dgpf/htdocs/scripts/datetime.php on line 16
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