Fix multiplication carry flag behaviour

TollyH · Oct 23, 2023 · db194a8 · db194a8
1 parent f05f07c
commit db194a8
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/Processor.cs b/Processor.cs
@@ -454,7 +454,7 @@ public bool Execute(bool runUntilHalt, Stream? stdoutOverride = null)
 
                                 Registers[(int)Register.rsf] &= ~(ulong)StatusFlags.Overflow;
 
-                                if (result < initial)
+                                if (result < initial && mathend != 0)
                                 {
                                     Registers[(int)Register.rsf] |= (ulong)StatusFlags.Carry;
                                 }