Update heap, stack and opcodes

Source/Frame.rs

@@ -0,0 +1,70 @@
+use crate::Types::*;
+use std::mem;
+
+pub enum Frame {
+    Byte(Byte),
+    Half(Half),
+    Word(Word),
+}
+
+impl Frame {
+    pub fn Null() -> Self {
+        Self::Byte(0)
+    }
+
+    pub fn GetSize(&self) -> usize {
+        match self {
+            Self::Byte(_) => mem::size_of::<Byte>(),
+            Self::Half(_) => mem::size_of::<Half>(),
+            Self::Word(_) => mem::size_of::<Word>(),
+        }
+    }
+
+    pub fn IsByte(&self) -> bool {
+        if let Self::Byte(_) = self {
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn GetByte(&self) -> Option<Byte> {
+        if let Self::Byte(data) = *self {
+            Some(data)
+        } else {
+            None
+        }
+    }
+
+    pub fn IsHalf(&self) -> bool {
+        if let Self::Half(_) = self {
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn GetHalf(&self) -> Option<Half> {
+        if let Self::Half(data) = *self {
+            Some(data)
+        } else {
+            None
+        }
+    }
+
+    pub fn IsWord(&self) -> bool {
+        if let Self::Word(_) = self {
+            true
+        } else {
+            false
+        }
+    }
+
+    pub fn GetWord(&self) -> Option<Word> {
+        if let Self::Word(data) = *self {
+            Some(data)
+        } else {
+            None
+        }
+    }
+}