From ac29437d5e7bc1f90e0e8fce50869f7dc6e542b9 Mon Sep 17 00:00:00 2001
From: brunom <bruno.uy@gmail.com>
Date: Sun, 12 Jul 2026 19:18:36 -0300
Subject: [PATCH] fix: Internal debugger crash when instruction would read 2
 bytes starting at 0xFFFF

---
 src/Spice86/ViewModels/DisassemblyViewModel.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Spice86/ViewModels/DisassemblyViewModel.cs b/src/Spice86/ViewModels/DisassemblyViewModel.cs
index fcf6588123..e8799d9c3b 100644
--- a/src/Spice86/ViewModels/DisassemblyViewModel.cs
+++ b/src/Spice86/ViewModels/DisassemblyViewModel.cs
@@ -444,7 +444,14 @@ private void EvaluateOperands()
         for (int i = clampedFirst; i <= clampedLast; i++)
         {
             DebuggerLineViewModel line = sortedLines[i];
-            line.EvaluatedOperands = _evaluationService.FormatOperandValues(line.InstructionInfo);
+            try
+            {
+                line.EvaluatedOperands = _evaluationService.FormatOperandValues(line.InstructionInfo);
+            }
+            catch
+            {
+                line.EvaluatedOperands = null;
+            }
         }
     }