message: Fix possible crash when changing cache preset during stepping
diff: @@ -116,7 +116,16 @@ QString CacheGraphic::addressString() const {
  }
  void CacheGraphic::updateWay(unsigned lineIdx, unsigned wayIdx) {
  - CacheWay& way = m_cacheTextItems.at(lineIdx).at(wayIdx);
  + const auto& it = m_cacheTextItems.find(lineIdx);
  + if (it == m_cacheTextItems.end()) {
  + return;
  + }
  + const auto& wayIt = it->second.find(wayIdx);
  + if (wayIt == it->second.end()) {
  + return;
  + }
  + CacheWay& way = wayIt->second;
  +
  CacheSim::CacheWay simWay = CacheSim::CacheWay();
  if (auto* cacheLine = m_cache.getLine(lineIdx)) {
  @@ -461,7 +470,16 @@ void CacheGraphic::cacheInvalidated() {
  void CacheGraphic::updateAddressing(bool valid, const CacheSim::CacheTransaction& transaction) {
  if (m_indexingVisible) {
  if (valid) {
  - const CacheWay& way = m_cacheTextItems.at(transaction.index.line).at(transaction.index.way);
  + const auto& it = m_cacheTextItems.find(transaction.index.line);
  + if (it == m_cacheTextItems.end()) {
  + return;
  + }
  + const auto& wayIt = it->second.find(transaction.index.way);
  + if (wayIt == it->second.end()) {
  + return;
  + }
  +
  + const CacheWay& way = wayIt->second;
  m_addressTextItem->setText(QString::number(transaction.address, 2).rightJustified(32, '0'));
  if (way.tag) {
  