CPU/CodeCache: Dynamically compute BIOS memory access timing

The timings can change if the game does so. Instead of forcing the
blocks to recompile, we can just manually multiply size * word_time.

Improves stability of Nightmare Creatures booting, and fixes corrupted
text in Formula Circus when using the cached interpreter.

src/core/cpu_newrec_compiler.cpp

@@ -77,8 +77,7 @@ void CPU::NewRec::Compiler::BeginBlock()
     GenerateBlockProtectCheck(ram_ptr, shadow_ptr, m_block->size * sizeof(Instruction));
   }
 
-  if (m_block->uncached_fetch_ticks > 0 || m_block->icache_line_count > 0)
-    GenerateICacheCheckAndUpdate();
+  GenerateICacheCheckAndUpdate();
 
   if (g_settings.bios_tty_logging)
   {
@@ -1719,6 +1718,14 @@ void CPU::NewRec::Compiler::TruncateBlock()
   iinfo->is_last_instruction = true;
 }
 
+const TickCount* CPU::NewRec::Compiler::GetFetchMemoryAccessTimePtr() const
+{
+  const TickCount* ptr =
+    Bus::GetMemoryAccessTimePtr(m_block->pc & PHYSICAL_MEMORY_ADDRESS_MASK, MemoryAccessSize::Word);
+  AssertMsg(ptr, "Address has dynamic fetch ticks");
+  return ptr;
+}
+
 void CPU::NewRec::Compiler::FlushForLoadStore(const std::optional<VirtualMemoryAddress>& address, bool store,
                                               bool use_fastmem)
 {