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Improved output for division by zero

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jan 2025-01-03 10:49:28 +01:00
parent 70fb53e87a
commit b498160c41
4 changed files with 6 additions and 5 deletions
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0
.intentionally-empty-file.o Normal file
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2
Cargo.lock generated
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@ -1813,7 +1813,7 @@ checksum = "7da8b5736845d9f2fcb837ea5d9e2628564b3b043a70948a3f0b778838c5fb4f"
[[package]] [[package]]
name = "svc16" name = "svc16"
version = "0.7.1" version = "0.7.2"
dependencies = [ dependencies = [
"anyhow", "anyhow",
"clap", "clap",

2
Cargo.toml
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@ -1,6 +1,6 @@
[package] [package]
name = "svc16" name = "svc16"
version = "0.7.1" version = "0.7.2"
edition = "2021" edition = "2021"
authors = ["Jan Neuendorf"] authors = ["Jan Neuendorf"]
description = "An emulator for a simple virtual computer" description = "An emulator for a simple virtual computer"

7
src/engine.rs
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@ -33,8 +33,8 @@ pub struct Engine {
#[derive(Debug, Error)] #[derive(Debug, Error)]
pub enum EngineError { pub enum EngineError {
#[error("Division by zero")] #[error("Division by zero {0}/0")]
ZeroDivision, ZeroDivision(u16),
#[error("Invalid instruction {0}")] #[error("Invalid instruction {0}")]
InvalidInstruction(u16), InvalidInstruction(u16),
@ -152,7 +152,8 @@ impl Engine {
} }
DIV => { DIV => {
if self.get(arg2) == 0 { if self.get(arg2) == 0 {
return Err(EngineError::ZeroDivision); let numerator = self.get(arg1);
return Err(EngineError::ZeroDivision(numerator));
} else { } else {
self.set(arg3, self.get(arg1).wrapping_div(self.get(arg2))); self.set(arg3, self.get(arg1).wrapping_div(self.get(arg2)));
self.advance_inst_ptr(); self.advance_inst_ptr();