add pretty-printer for assembled instructions

launcher/src/main.rs

@@ -14,6 +14,7 @@ use crsn::runtime::run_thread::{RunThread, ThreadToken};
 use crsn_arith::ArithOps;
 use crsn_screen::ScreenOps;
 use crsn_stacks::StackOps;
+use crsn::module::OpTrait;
 
 mod read_file;
 mod serde_duration_millis;
@@ -130,13 +131,13 @@ fn main() -> anyhow::Result<()> {
 
     if config.asm_only {
         for (n, op) in parsed.ops.iter().enumerate() {
-            println!("{:04} : {:?}", n, op);
+            println!("{:04} : {}", n, op.to_sexp());
         }
         return Ok(());
     } else {
         trace!("--- Compiled program ---");
         for (n, op) in parsed.ops.iter().enumerate() {
-            trace!("{:04} : {:?}", n, op);
+            trace!("{:04} : {}", n, op.to_sexp());
         }
         trace!("------------------------");
     }