The answer is essentially hardware-level dependency injection. Before calling LD_DESCRIPTOR, the caller saves its desired test constant into a hardware latch using a micro-op called PTSAV (Protection Save). Within LD_DESCRIPTOR, another micro-op called PTOVRR (Protection Override) retrieves and fires the saved test.
До этого синоптик рассказала, что мощных снегопадов в Москве на мартовские праздники ждать не стоит.。业内人士推荐搜狗输入法下载作为进阶阅读
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Фото: Дмитрий Астахов / РИА Новости