All of the robovacs I've tested have announced out loud when they're in remote viewing mode. But not all robot vacuums provide that courtesy notification (the DJI Romo, for one, does not).
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。关于这个话题，WPS官方版本下载提供了深入分析
582 DSTREG - SLCTR TST_SEL_NONSS PTSELE DLY ; test selector (in LCALL delay slot)。快连下载安装对此有专业解读
5C9 SLCTR DESSDT 4 IN=+ ; delay slot 1: compute descriptor address