GUI: (hopefully) improved DisassembleBack

src/gui/Src/Disassembler/QBeaEngine.cpp

@@ -63,7 +63,7 @@ ulong QBeaEngine::DisassembleBack(byte_t* data, duint base, duint size, duint ip
         abuf[i % 128] = addr;
 
         if(!cp.Disassemble(0, pdata, (int)size))
-            cmdsize = 1;
+            cmdsize = 2; //heuristic for better output (FF FE or FE FF are usually part of an instruction)
         else
             cmdsize = cp.Size();
 
@@ -180,4 +180,4 @@ Instruction_t QBeaEngine::DisassembleAt(byte_t* data, duint size, duint instInde
 void QBeaEngine::UpdateConfig()
 {
     _tokenizer.UpdateConfig();
-}
+}