Source code of MARS Assembler

First commit of the 4.5 version (latest version available)
2014-12-21 12:49:28 +01:00
parent 343642d6ad
commit 0da1c5dcca
1333 changed files with 207089 additions and 3 deletions
@@ -0,0 +1,97 @@
+   package mars.mips.dump;
+   import mars.*;
+   import mars.util.*;
+   import java.util.*;
+   import java.lang.reflect.*;
+
+/*
+Copyright (c) 2003-2008,  Pete Sanderson and Kenneth Vollmar
+
+Developed by Pete Sanderson (psanderson@otterbein.edu)
+and Kenneth Vollmar (kenvollmar@missouristate.edu)
+
+Permission is hereby granted, free of charge, to any person obtaining 
+a copy of this software and associated documentation files (the 
+"Software"), to deal in the Software without restriction, including 
+without limitation the rights to use, copy, modify, merge, publish, 
+distribute, sublicense, and/or sell copies of the Software, and to 
+permit persons to whom the Software is furnished to do so, subject 
+to the following conditions:
+
+The above copyright notice and this permission notice shall be 
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF 
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. 
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR 
+ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF 
+CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION 
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+(MIT license, http://www.opensource.org/licenses/mit-license.html)
+ */
+
+   	
+    /****************************************************************************/
+    /* This class provides functionality to bring external memory dump format definitions
+     * into MARS.  This is adapted from the ToolLoader class, which is in turn adapted
+     * from Bret Barker's GameServer class from the book "Developing Games In Java".
+     */
+    
+    public class DumpFormatLoader {
+      
+      private static final String CLASS_PREFIX = "mars.mips.dump.";
+      private static final String DUMP_DIRECTORY_PATH = "mars/mips/dump";
+      private static final String SYSCALL_INTERFACE = "DumpFormat.class";
+      private static final String CLASS_EXTENSION = "class";
+      
+      private static ArrayList formatList = null;
+   	
+     /**
+      *  Dynamically loads dump formats into an ArrayList.  This method is adapted from
+      *  the loadGameControllers() method in Bret Barker's GameServer class.
+      *  Barker (bret@hypefiend.com) is co-author of the book "Developing Games
+      *  in Java".  Also see the ToolLoader and SyscallLoader classes elsewhere in MARS.
+      */
+   	
+       public ArrayList loadDumpFormats() {
+         // The list will be populated only the first time this method is called.
+         if (formatList == null) {
+            formatList = new ArrayList();
+         // grab all class files in the dump directory
+            ArrayList candidates = FilenameFinder.getFilenameList(this.getClass( ).getClassLoader(),
+                                              DUMP_DIRECTORY_PATH, CLASS_EXTENSION);
+            for( int i = 0; i < candidates.size(); i++) {
+               String file = (String) candidates.get(i);
+               try {
+                  // grab the class, make sure it implements DumpFormat, instantiate, add to list
+                  String formatClassName = CLASS_PREFIX+file.substring(0, file.indexOf(CLASS_EXTENSION)-1);
+                  Class clas = Class.forName(formatClassName);
+                  if (DumpFormat.class.isAssignableFrom(clas) && 
+                      !Modifier.isAbstract(clas.getModifiers()) &&
+                  	 !Modifier.isInterface(clas.getModifiers())   ) {
+                     formatList.add(clas.newInstance());
+                  }
+               } 
+                   catch (Exception e) {
+                     System.out.println("Error instantiating DumpFormat from file " + file + ": "+e);
+                  }
+            }
+         }
+         return formatList;
+      }
+   	
+       public static DumpFormat findDumpFormatGivenCommandDescriptor(ArrayList formatList, String formatCommandDescriptor) {
+         DumpFormat match = null;
+         for (int i=0; i<formatList.size(); i++) {
+            if (((DumpFormat)formatList.get(i)).getCommandDescriptor().equals(formatCommandDescriptor)) {
+               match = (DumpFormat) formatList.get(i);
+               break;
+            }
+         }
+         return match;
+      }
+   			
+         
+   }