title: Why break point doesn't work for those lines without source code in Disassembly view of visual studio?
body: <p>It's a c++ project:</p>
  
  <p><img src="https://i.stack.imgur.com/AZwPW.jpg" alt="alt text"></p>
  
  <pre><code>7C92E4BE  mov         dword ptr [esp],eax 
  7C92E4C1  mov         dword ptr [esp+4],0 
  7C92E4C9  mov         dword ptr [esp+8],0 
  7C92E4D1  mov         dword ptr [esp+10h],0 
  7C92E4D9  push        esp  
  7C92E4DA  call        7C92E508 
  7C92E4DF  mov         eax,dword ptr [esp] 
  7C92E4E2  mov         esp,ebp 
  7C92E4E4  pop         ebp  
  7C92E4E5  ret              
  7C92E4E6  lea         esp,[esp] 
  7C92E4ED  lea         ecx,[ecx] 
  7C92E4F0  mov         edx,esp 
  7C92E4F2  sysenter         
  7C92E4F4  ret 
  </code></pre>
  
  <p>I set bp on <code>7C92E4F2</code> (this part is called by Win32,not explicitly from my code) , then I start debugging, it doesn't stop.</p>
  
  <p>Why ?</p>