use more correct logic for mod

2024-04-29 13:23:28 +02:00
parent 078e2bb05a
commit a6af244080
1 changed files with 5 additions and 1 deletions
--- a/ic10emu/src/interpreter.rs
+++ b/ic10emu/src/interpreter.rs
@@ -1745,7 +1745,11 @@ impl IC {
                        } = reg.as_register(this, inst, 1)?;
                        let a = a.as_value(this, inst, 2)?;
                        let b = b.as_value(this, inst, 1)?;
-                        this.set_register(indirection, target, ((a % b) + b) % b)?;
+                        let mut m = (a % b);
+                        if m < 0.0 {
+                            m += b;
+                        }
+                        this.set_register(indirection, target, m)?;
                        Ok(())
                    }
                    oprs => Err(ICError::mismatch_operands(oprs.len(), 3)),