diff --git a/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java b/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java
index 141b1b5..5f5ca10 100644
--- a/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java
+++ b/src/de/inetsoftware/jwebassembly/module/WasmCodeBuilder.java
@@ -29,6 +29,7 @@ import javax.annotation.Nullable;
 import de.inetsoftware.classparser.BootstrapMethod;
 import de.inetsoftware.classparser.ClassFile;
 import de.inetsoftware.classparser.ConstantClass;
+import de.inetsoftware.classparser.FieldInfo;
 import de.inetsoftware.classparser.LocalVariableTable;
 import de.inetsoftware.classparser.Member;
 import de.inetsoftware.classparser.MethodInfo;
@@ -536,6 +537,33 @@ public abstract class WasmCodeBuilder {
         functions.markClassAsUsed( name.className );
     }
 
+    /**
+     * Add a global field access instruction
+     * 
+     * @param load
+     *            true: if load (get)
+     * @param fieldName
+     *            the fieldName like java/lang/System.err
+     * @param javaCodePos
+     *            the code position/offset in the Java method
+     * @param lineNumber
+     *            the line number in the Java source code
+     */
+    protected void addGlobalInstruction( boolean load, String fieldName, int javaCodePos, int lineNumber ) {
+        try {
+            if( fieldName.startsWith( "$" ) ) {
+                fieldName = fieldName.substring( 1 );
+            }
+            FunctionName name = new FunctionName( fieldName + "()V" );
+            ClassFile classFile = classFileLoader.get( name.className );
+            FieldInfo field = classFile.getField( name.methodName );
+            AnyType type = new ValueTypeParser( field.getType(), types ).next();
+            addGlobalInstruction( load, name, type, null, javaCodePos, lineNumber );
+        } catch( Exception ex ) {
+            throw WasmException.create( ex, lineNumber );
+        }
+    }
+
     /**
      * Add a WasmTableInstruction table.get/table.set.
      * 
diff --git a/src/de/inetsoftware/jwebassembly/watparser/WatParser.java b/src/de/inetsoftware/jwebassembly/watparser/WatParser.java
index 5079e4e..c2826b9 100644
--- a/src/de/inetsoftware/jwebassembly/watparser/WatParser.java
+++ b/src/de/inetsoftware/jwebassembly/watparser/WatParser.java
@@ -77,9 +77,12 @@ public class WatParser extends WasmCodeBuilder {
                     case "local.tee":
                         addLocalInstruction( VariableOperator.tee, getInt( tokens, ++i), javaCodePos, lineNumber );
                         break;
-//                    case "get_global":
-//                        addGlobalInstruction( true, ref, javaCodePos );
-//                        break;
+                    case "global.get":
+                        addGlobalInstruction( true, get( tokens, ++i), javaCodePos, lineNumber );
+                        break;
+                    case "global.set":
+                        addGlobalInstruction( false, get( tokens, ++i), javaCodePos, lineNumber );
+                        break;
                     case "i32.const":
                         addConstInstruction( getInt( tokens, ++i), ValueType.i32, javaCodePos, lineNumber );
                         break;