diff --git a/src/heap.rs b/src/heap.rs
index da13662..e9ff090 100644
--- a/src/heap.rs
+++ b/src/heap.rs
@@ -23,10 +23,11 @@ pub enum ObjectRef{
     DoubleArray(Vec<f64>),
     BooleanArray(Vec<bool>),
     CharArray(Vec<char>),
-    ObjectArray(Vec<Object>),
+    ObjectArray(Vec<Arc<UnsafeCell<ObjectRef>>>),
     Object(Object),
 }
 
+
 unsafe impl Send for Object {}
 
 unsafe impl Sync for Object {}
diff --git a/src/opcodes.rs b/src/opcodes.rs
index ba9deaf..5f8e6be 100644
--- a/src/opcodes.rs
+++ b/src/opcodes.rs
@@ -77,13 +77,14 @@ pub const ASTORE_0: u8 = 75; // (0x4b)
 pub const ASTORE_1: u8 = 76; // (0x4c)
 pub const ASTORE_2: u8 = 77; // (0x4d)
 pub const ASTORE_3: u8 = 78; // (0x4e)
+pub const IASTORE: u8 = 79; // (0x4f) Store into int array
+pub const LASTORE: u8 = 80; // (0x50) Store into long array
 pub const FASTORE: u8 = 81; // (0x51) Store into float array
-// pub const dastore:u8 = 82; //(0x52) store into double array
-// pub const aastore: u8 = 83; // (0x53)
-//
-// pub const bastore:u8 = 84; // (0x54)
-//
-// pub const castore:u8 = 85; // (0x55)
+pub const DASTORE: u8 = 82; //(0x52) store into double array
+pub const AASTORE: u8 = 83; // (0x53) Store into object array
+pub const BASTORE:u8 = 84; // (0x54) Store into byte or boolean array
+pub const CASTORE:u8 = 85; // (0x55) Store into char array
+pub const SASTORE:u8 = 86; // (0x56) Store into short array
 pub const POP: u8 = 87; // (0x57) Pop the top operand stack value
 pub const DUP: u8 = 89; // (0x59) duplicate the top operand stack value
 // pub const dup_x1: u8 = 90; // (0x5a) Duplicate the top operand stack value and insert two values down
diff --git a/src/vm.rs b/src/vm.rs
index fdf20b5..e4315b6 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -254,17 +254,7 @@ impl Vm {
                     ISTORE_3 | LSTORE_3 | DSTORE_3 | ASTORE_3 | FSTORE_3 => {
                         self.store(&mut local_params, 3)?;
                     }
-                    FASTORE => unsafe {
-                        if let Value::F32(value) = *self.local_stack().pop()?.get() {
-                            if let Value::I32(index) = &mut *self.local_stack().pop()?.get() {
-                                if let Value::Ref(ref mut objectref) = &mut *self.local_stack().pop()?.get() {
-                                    if let ObjectRef::FloatArray(ref mut array) = &mut *objectref.get() {
-                                        array[*index as usize] = value;
-                                    }
-                                }
-                            }
-                        }
-                    }
+                    BASTORE | IASTORE | LASTORE | CASTORE | SASTORE | FASTORE | DASTORE | AASTORE => unsafe { self.arraystore()? }
                     POP => {
                         self.local_stack().pop()?;
                     }
@@ -377,6 +367,63 @@ impl Vm {
         panic!("should not happen")
     }
 
+    unsafe fn arraystore(&mut self) -> Result<(), Error> {
+        let eleemnt = self.local_stack().pop()?;
+
+        if let Value::I32(index) = &mut *self.local_stack().pop()?.get() {
+            if let Value::Ref(ref mut objectref) = &mut *self.local_stack().pop()?.get() {
+                match &mut *objectref.get() {
+                    ObjectRef::ByteArray(ref mut array) => {
+                        if let Value::I32(value) = *eleemnt.get() { // is i32 correct?
+                            array[*index as usize] = value as i8;
+                        }
+                    }
+                    ObjectRef::ShortArray(ref mut array) => {
+                        if let Value::I32(value) = *eleemnt.get() { // is i32 correct?
+                            array[*index as usize] = value as i16;
+                        }
+                    }
+                    ObjectRef::IntArray(ref mut array) => {
+                        if let Value::I32(value) = *eleemnt.get() {
+                            array[*index as usize] = value;
+                        }
+                    }
+                    ObjectRef::BooleanArray(ref mut array) => {
+                        if let Value::I32(value) = *eleemnt.get() {
+                            array[*index as usize] = value > 0;
+                        }
+                    }
+                    ObjectRef::CharArray(ref mut array) => {
+                        if let Value::I32(value) = *eleemnt.get() {
+                            array[*index as usize] = char::from_u32_unchecked(value as u32);
+                        }
+                    }
+                    ObjectRef::LongArray(ref mut array) => {
+                        if let Value::I64(value) = *eleemnt.get() {
+                            array[*index as usize] = value;
+                        }
+                    }
+                    ObjectRef::FloatArray(ref mut array) => {
+                        if let Value::F32(value) = *eleemnt.get() {
+                            array[*index as usize] = value
+                        }
+                    }
+                    ObjectRef::DoubleArray(ref mut array) => {
+                        if let Value::F64(value) = *eleemnt.get() {
+                            array[*index as usize] = value
+                        }
+                    }
+                    ObjectRef::ObjectArray(ref mut array) => {
+                        if let Value::Ref(ref value) = *eleemnt.get() {
+                            array[*index as usize] = value.clone();
+                        }
+                    }
+                }
+            }
+        }
+        Ok(())
+    }
+
     fn store(&mut self, local_params: &mut Vec<Option<Arc<UnsafeCell<Value>>>>, index: usize) -> Result<(), Error> {
         let value = self.local_stack().pop()?;
         while local_params.len() < index + 1 {