Add execution to VM via file, starting to iron out bugs

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

src/vm/inst.rs

@@ -6,6 +6,15 @@ macro_rules! instructions {
         $(
             pub const $variant: InstOp = $value;
         )*
+
+        pub fn inst_name(op: InstOp) -> Option<&'static str> {
+            match op {
+                $(
+                    $value => Some(stringify!($variant)),
+                )*
+                _ => None,
+            }
+        }
     };
 }
 pub type InstOp = u16;