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Expect explicitly declared, all content of this account belong to Public Domain, under CC0.
creativecommons.org/publicdoma

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有些东西仿佛已经失去了深入讨论的意义

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王冠红人馆——中国财经周刊20210904
m.yangshipin.cn/video?type=0&v

冷知识 Get:王者荣耀里你一天上线七个小时,就算是成年人(而且节目里特意提及了成年人)系统也要你下线

看那篇《父亲与自杀的少年》 

小孩自杀了,大人认为是动漫不好,网络不好,小孩加了邪恶的qq群,接触到了不怀好意的人……在朋友圈发“家长要多查查孩子的手机”

另外一边,小孩自杀前和朋友求助,朋友的安慰是,“我们马上就要长大了,马上就能离开他们了,你以后想去哪个城市?他说想去上海。她说你在上海买套房子,我去看你——路还长着呢。”

Minoko Novel 第八章
cloud.disroot.org/s/kYM8rAT3mq

将会在第七章写完后修正错别字并发布在网站上

女病娇也许真的只是存在于虚构作品里的幻想

[一路欢笑]小品《心病》 20130226
xiqu.cctv.com/2013/02/26/VIDEt

「说人好比盆中鲜花,生活就是一团乱麻,房子修的再好那也是个临时住所,这个小盒才是你永久的家啊!」

提问:一刀切通常是出于什么样的需求?

Dolphin 5.0-11590 - Avoid using PDEP and PEXT on AMD Zen by Techjar
dolphin-emu.org/blog/2020/02/0

> However, unknown to any of us, it turns out that PEXT is extremely slow on AMD Zen and Zen 2 architectures. People have recorded these instructions taking up to 289 cycles, versus just one cycle on other CPU architectures. The reason these instructions are so slow is that they are not directly implemented on the CPU itself, but were instead implemented in microcode.

> Please note that other CPU architectures are not affected by this change; to our knowledge all other architectures either support PEXT directly or not at all.

twitter.com/uops_info/status/1

> I just ran some tests: the performance seems to depend heavily on the value in the last operand; this is also the case for the register variants. If the last operand is set to -1 (i.e., all bits are 1), the instr. has 518 uops and needs more than 289 cycles!

GitHub: llvm/llvm-project /llvm/lib/Target/X86/X86ScheduleZnver1.td (as of LLVM 12.0.1)
github.com/llvm/llvm-project/b
// PDEP PEXT.
// r,r,r.
def : InstRW<[WriteMicrocoded], (instregex "PDEP(32|64)rr", "PEXT(32|64)rr")>;
// r,r,m.
def : InstRW<[WriteMicrocoded], (instregex "PDEP(32|64)rm", "PEXT(32|64)rm")>;

AMD 不愧是农企,轻易做到了其他 CPU 厂商做不到的事情

想成为美少女 VTuber ,然后用自己的本音说话。

Lollypop refused to play anything
Shortwave can't find CNR

VLC: The ultimate player for everything media related ?

《拼多多-拼着买才便宜》 - TVC广告
bilibili.com/video/BV1Yb4y1r7m

经 典 再 现(以下内容因可能引起嘟友不适而标记敏感)

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