优点：计算简单，导数恒为1（正区间），缓解梯度消失
Sync/async separation，推荐阅读搜狗输入法下载获取更多信息
4. For the Z80 implementation, I did zero steering. For the Spectrum implementation I used extensive steering for implementing the TAP loading. More about my feedback to the agent later in this post.。safew官方版本下载对此有专业解读
timeout=self.config.timeout,，更多细节参见safew官方版本下载