めゆゃるよゆ📀 @ShadowRZ@moe.cat

有些东西仿佛已经失去了深入讨论的意义

这世界还能生活吗

王冠红人馆——中国财经周刊20210904
https://m.yangshipin.cn/video?type=0&vid=l000017vcb5

#TIL 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

Minoko Novel 第八章
https://cloud.disroot.org/s/kYM8rAT3mq2LGif

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
http://xiqu.cctv.com/2013/02/26/VIDEtPylbumJbFAt9nmbSW5k130226.shtml

「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！」

#TIL 提问：一刀切通常是出于什么样的需求？

这篇中央电视台《新闻调查》报道内容文字稿让我大开眼界
http://news.sohu.com/20050107/n223832927.shtml
http://news.sohu.com/20050107/n223832931.shtml

Dolphin 5.0-11590 - Avoid using PDEP and PEXT on AMD Zen by Techjar
https://dolphin-emu.org/blog/2020/02/07/dolphin-progress-report-dec-2019-and-jan-2020/#50-11590-avoid-using-pdep-and-pext-on-amd-zen-by-techjar

> 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.

https://twitter.com/uops_info/status/1202950247900684290

> 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)
https://github.com/llvm/llvm-project/blob/llvmorg-12.0.1/llvm/lib/Target/X86/X86ScheduleZnver1.td#L750-L754
// 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

CVE-2021-30481
https://nvd.nist.gov/vuln/detail/CVE-2021-30481

The complete guide for open sourcing video games
https://drewdevault.com/2021/03/23/Open-sourcing-video-games.html

Lollypop refused to play anything
Shortwave can't find CNR

VLC: The ultimate player for everything media related ?

https://emojipedia.org/transgender-flag/
有没有人想过这玩意也会惨遭毒手？

#TIL 奥运会原来不是公共资源

Picrewの「少年少女好き？２」でつくったよ！ https://picrew.me/share?cd=Fl0chZDW4T #Picrew #少年少女好き２

再次改头像