From b498160c411e597e970b16c2dc52ee72d98f6336 Mon Sep 17 00:00:00 2001
From: jan <jp333n@gmx.de>
Date: Fri, 3 Jan 2025 10:49:28 +0100
Subject: [PATCH] Improved output for division by zero

---
 .intentionally-empty-file.o | 0
 Cargo.lock                  | 2 +-
 Cargo.toml                  | 2 +-
 src/engine.rs               | 7 ++++---
 4 files changed, 6 insertions(+), 5 deletions(-)
 create mode 100644 .intentionally-empty-file.o

diff --git a/.intentionally-empty-file.o b/.intentionally-empty-file.o
new file mode 100644
index 0000000..e69de29
diff --git a/Cargo.lock b/Cargo.lock
index 907e175..8eeba79 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1813,7 +1813,7 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
 
 [[package]]
 name = "svc16"
-version = "0.7.1"
+version = "0.7.2"
 dependencies = [
  "anyhow",
  "clap",
diff --git a/Cargo.toml b/Cargo.toml
index f3fa109..80c57fc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "svc16"
-version = "0.7.1"
+version = "0.7.2"
 edition = "2021"
 authors = ["Jan Neuendorf"]
 description = "An emulator for a simple virtual computer"
diff --git a/src/engine.rs b/src/engine.rs
index 4b60e1b..b743314 100644
--- a/src/engine.rs
+++ b/src/engine.rs
@@ -33,8 +33,8 @@ pub struct Engine {
 
 #[derive(Debug, Error)]
 pub enum EngineError {
-    #[error("Division by zero")]
-    ZeroDivision,
+    #[error("Division by zero {0}/0")]
+    ZeroDivision(u16),
 
     #[error("Invalid instruction {0}")]
     InvalidInstruction(u16),
@@ -152,7 +152,8 @@ impl Engine {
             }
             DIV => {
                 if self.get(arg2) == 0 {
-                    return Err(EngineError::ZeroDivision);
+                    let numerator = self.get(arg1);
+                    return Err(EngineError::ZeroDivision(numerator));
                 } else {
                     self.set(arg3, self.get(arg1).wrapping_div(self.get(arg2)));
                     self.advance_inst_ptr();