Create README.md

Author: n2o

README.md

@@ -0,0 +1,27 @@
+# Pascal Compiler in Java
+
+Created a Compiler for Simple Pascal in Java with SableCC. Simple Pascal is a subset of the normal Pascal.
+
+This Compiler takes a Pascal file and creates a *.class file for it, which can be executed using Java as usual.
+
+## Compiling a file and liveness analysis
+
+1. I attached a ```build.xml``` file to use sablecc automatically to use my specified grammar in Java. So just type in your shell: 
+  ```> ant```
+  or by hand:
+  ```> java -jar sablecc.jar sablecc.scc```
+
+2. Compile all created classes
+  ```> javac *.java```
+
+3a. Start compiling with:
+  ```> java StupsCompiler -compile <Filename.pas>```
+
+3b. OR start a liveness analysis for all variables used in the Pascal file
+  ```> java StupsCompiler -liveness <Filename.pas>```
+
+4. Create Bytecode with jasmin
+  ```> java -jar jasmin.jar <Filename.j>```
+
+5. Execute compiled Pascal file
+  ```> java Filename```