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 +1,92 @@
+   package mars.mips.dump;
+
+   import mars.util.Binary;
+   import mars.Globals;
+   import mars.mips.hardware.*;
+   import java.io.*;
+/*
+Copyright (c) 2003-2011,  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)
+ */
+
+/**
+ * Class that represents the "ASCII text" memory dump format. Memory contents
+ * are interpreted as ASCII codes. The output 
+ * is a text file with one word of MIPS memory per line.  The word is formatted
+ * to leave three spaces for each character.  Non-printing characters 
+ * rendered as period (.) as placeholder.  Common escaped characters
+ * rendered using backslash and single-character descriptor, e.g. \t for tab.
+ * @author Pete Sanderson 
+ * @version December 2010
+ */
+
+
+    public class AsciiTextDumpFormat extends AbstractDumpFormat {
+   
+   /**
+   *  Constructor.  There is no standard file extension for this format.
+   */
+       public AsciiTextDumpFormat() {
+         super("ASCII Text", "AsciiText", "Memory contents interpreted as ASCII characters", null);
+      }
+   
+   
+   /**
+   *  Interpret MIPS memory contents as ASCII characters.  Each line of
+   *  text contains one memory word written in ASCII characters.  Those
+	*  corresponding to tab, newline, null, etc are rendered as backslash
+	*  followed by single-character code, e.g. \t for tab, \0 for null.
+	*  Non-printing character (control code,
+	*  values above 127) is rendered as a period (.).  Written
+	*  using PrintStream's println() method.
+   *  Adapted by Pete Sanderson from code written by Greg Gibeling.
+   *
+   *  @param  file  File in which to store MIPS memory contents.  
+   *  @param firstAddress first (lowest) memory address to dump.  In bytes but
+   *  must be on word boundary.
+   *  @param lastAddress last (highest) memory address to dump.  In bytes but
+   *  must be on word boundary.  Will dump the word that starts at this address.
+   *  @throws AddressErrorException if firstAddress is invalid or not on a word boundary.
+   *  @throws IOException if error occurs during file output.
+   */
+       public void dumpMemoryRange(File file, int firstAddress, int lastAddress) 
+        throws AddressErrorException, IOException {
+         PrintStream out = new PrintStream(new FileOutputStream(file));
+         String string = null;
+         try {
+            for (int address = firstAddress; address <= lastAddress; address += Memory.WORD_LENGTH_BYTES) {
+               Integer temp = Globals.memory.getRawWordOrNull(address);
+               if (temp == null) 
+                  break;
+               out.println(Binary.intToAscii(temp.intValue()));
+            }
+         } 
+         finally { 
+            out.close(); 
+         }
+      }
+   
+   }