ft(interpreter): impl simple stack init

src/main.rs

@@ -36,11 +36,23 @@ struct Args {
     /// Dump progress of disassembly, in case of encountering an error.
     #[arg(short, long, global = true, action)]
     dump: bool,
+
+    /// argv passed to the program, which will be interpreted
+    #[arg(trailing_var_arg = true, global = true)]
+    argv: Vec<String>,
 }
 
 fn main() {
     Builder::new()
-        .format(|buf, record| writeln!(buf, "{}: {}", record.level(), record.args()))
+        .format(|buf, record| {
+            writeln!(
+                buf,
+                "{} {}: {}",
+                record.target(),
+                record.level(),
+                record.args()
+            )
+        })
         .parse_default_env()
         .init();