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
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+package mars.tools;
+
+/*
+Copyright (c) 2003-2006,  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)
+ */
+
+
+/** 
+ *  Interface for any tool that interacts with an executing MIPS program.
+ *  A qualifying tool must be a class in the Tools package that 
+ *  implements the MarsTool interface, must be compiled into a .class file, 
+ *  and its .class file must be in the same Tools folder as MarsTool.class.
+ *  Mars will detect a qualifying tool upon startup, create an instance 
+ *  using its no-argument constructor and add it to its Tools menu.  
+ *  When its menu item is selected, the action() method will be invoked.
+ *
+ * <p>A tool may receive communication from MIPS system resources
+ *  (registers or memory) by registering as an Observer with 
+ *  Mars.Memory and/or Mars.Register objects.  
+ *
+ *  It may also
+ *  communicate directly with those resources through their
+ *  published methods PROVIDED any such communication is
+ *  wrapped inside a block synchronized on the 
+ *  Mars.Globals.memoryAndRegistersLock object.
+ */
+ 
+public interface MarsTool {
+ /**
+  *  Return a name you have chosen for this tool.  It will appear as the
+  *  menu item.
+  */
+  public abstract String getName();
+  
+  /**
+   * Performs tool functions.  It will be invoked when the tool is selected
+	* from the Tools menu.
+	*/
+	
+  public abstract void action();
+}