CPU/CodeCache: Add InvalidateAll() method

src/core/cpu_code_cache.cpp

@@ -836,11 +836,7 @@ void InvalidCodeFunction()
 
 #endif
 
-void InvalidateBlocksWithPageIndex(u32 page_index)
-{
-  DebugAssert(page_index < Bus::RAM_8MB_CODE_PAGE_COUNT);
-  auto& blocks = m_ram_block_map[page_index];
-  for (CodeBlock* block : blocks)
+static void InvalidateBlock(CodeBlock* block)
 {
   // Invalidate forces the block to be checked again.
   Log_DebugPrintf("Invalidating block at 0x%08X", block->GetPC());
@@ -869,11 +865,32 @@ void InvalidateBlocksWithPageIndex(u32 page_index)
 #endif
 }
 
+void InvalidateBlocksWithPageIndex(u32 page_index)
+{
+  DebugAssert(page_index < Bus::RAM_8MB_CODE_PAGE_COUNT);
+  auto& blocks = m_ram_block_map[page_index];
+  for (CodeBlock* block : blocks)
+    InvalidateBlock(block);
+
   // Block will be re-added next execution.
   blocks.clear();
   Bus::ClearRAMCodePage(page_index);
 }
 
+void InvalidateAll()
+{
+  for (auto& it : s_blocks)
+  {
+    CodeBlock* block = it.second;
+    if (block && !block->invalidated)
+      InvalidateBlock(block);
+  }
+
+  Bus::ClearRAMCodePageFlags();
+  for (auto& it : m_ram_block_map)
+    it.clear();
+}
+
 void RemoveReferencesToBlock(CodeBlock* block)
 {
   BlockMap::iterator iter = s_blocks.find(block->key.GetPC());

src/core/cpu_code_cache.h

@@ -140,6 +140,9 @@ void Reinitialize();
 /// Invalidates all blocks which are in the range of the specified code page.
 void InvalidateBlocksWithPageIndex(u32 page_index);
 
+/// Invalidates all blocks in the cache.
+void InvalidateAll();
+
 template<PGXPMode pgxp_mode>
 void InterpretCachedBlock(const CodeBlock& block);