func: void HELPER(wsr_ibreakenable)(uint32_t v)
  
  {
  
      uint32_t change = v ^ env->sregs[IBREAKENABLE];
  
      unsigned i;
  
  
  
      for (i = 0; i < env->config->nibreak; ++i) {
  
          if (change & (1 << i)) {
  
              tb_invalidate_phys_page_range(
  
                      env->sregs[IBREAKA + i], env->sregs[IBREAKA + i] + 1, 0);
  
          }
  
      }
  
      env->sregs[IBREAKENABLE] = v & ((1 << env->config->nibreak) - 1);
  
  }
  