【頭號粉絲】陳奕迅(Eason)舉行「Live is so much better with Music Eason Chan Charity Concert」(日出日落)慈善音樂會
「 Live is so much better with Music Eason Chan Charity Concert網上慈善音樂會」為本協會成立後的首個活動,演出是為「香港現場演出及制作行業協會」的「香港演制抗疫基金」進行籌款, 幫助疫情期間受影響的業內人士。
是次慈善音樂會將破天荒分日出和日落兩個時段,在兩個不同的地方進行,萬勿錯過!
「香港現場演出及制作行業協會」主辦[Live is so much better with Music Eason Chan Charity Concert]慈善音樂會得到仁濟醫院全力支持,仁濟醫院並以義務性質支援由協會成立之「香港演制抗疫基金」,並代協會收取及發放基金內之善款,幫助受疫情影響而沒有工作和收入的該協會會員,請透過以下途徑捐贈善款。
捐款日期
2020年7月9日至8月10日
➢ 捐款辦法
PayPal網上捐款
http://www.paypal.me/yanchaihospital
銀行捐款
可利用轉數快(FPS) / 自動櫃員機或親臨滙豐銀行各分行將善款直接存入仁濟醫院帳戶:
銀行名稱:滙豐銀行
銀行編號:004
帳戶號碼:0017220088
帳戶名稱:Yan Chai Hospital Controlling Account
劃線支票捐款
劃線支票抬頭為「仁濟醫院」,支票背後需備註「香港演制抗疫基金」,以茲識別。支票可郵寄或親身交往荃灣仁濟街7至11號仁濟醫院C座10樓董事局會計部。
備註:
如需索取捐款收據(只限郵寄香港地區),請將PayPal交易編號 / 銀行轉帳憑證 / 銀行入數紙 / 自動櫃員機捐款存根連同<收據姓名>及<回郵地址>寄回仁濟醫院以便跟進: 荃灣仁濟街7至11號仁濟醫院C座10樓董事局會計部。
演制抗疫基金捐款查詢電話:2452 9569
傳真:2412 0245
電郵:board@yanchai.org.hk
地址:荃灣仁濟街7至11號仁濟醫院C座10樓董事局會計部
_______________________________________________________________________________
其他查詢:3584 7880
「 Live is so much better with Music Eason Chan Charity Concert」is the ever first event of 「Hong Kong Live Performance and Production Industry Association Limited」. The aim of this event is raising fund and helping for those related industries whom have been suffering from COVID-19.
This charity concert will be shown in two separate part, Sunrise and Sunset . Both parts are performing in different places. Do not miss out and stay tuned!
Donations made for the “Live is so much better with Music Eason Chan Charity Concert" will be contributed to the 「HKLP Anti-Epidemic Fund」administered by Yan Chai Hospital and used to help members of the Concert organizer, Hong Kong Live Performance and Production Industry Association Limited, who have been affected by the pandemic. To make a donation, please submit your payment in any of the following methods:
Donation Date
From 9 Jul 2020 to 10 Aug 2020
➢ Donation Methods
Online Donation by PayPal
Through PayPal at www.paypal.me/yanchaihospital
Donation by Bank
By using Fast Payment System (FPS) / HSBC account through ATM machine or any HSBC bank branches.
Bank Name:The Hongkong and Shanghai Banking Corporation Limited (HSBC)
Bank Code:004
Bank A/C No.:0017220088
Account Name:Yan Chai Hospital Controlling Account
Donation by Cheque
Please mark your crossed cheque payable to “Yan Chai Hospital" and state the remark 「HKLP Anti-epidemic Fund」on the reverse side of your cheque. If sending by mail or in person, please send to “Accounts Department, Yan Chai Hospital Board Office, 10/F., Block C, Yan Chai Hospital, 7-11 Yan Chai Street, Tsuen Wan, N.T., Hong Kong”.
Remarks:
For donation receipt (applicable to Hong Kong local mail only), please send the PayPal Payment reference number / Transaction slip / Bank-in slip /ATM transfer advice slip and mail together with name and correspondence address of donor to Account Department, Yan Chai Hospital Board Office, 10/F., Block C, Yan Chai Hospital, 7-11 Yan Chai Street, Tsuen Wan, N.T., Hong Kong.
Donation Hotline:2452 9569
Fax:2412 0245
Email:board@yanchai.org.hk
Address:Account Department, Yan Chai Hospital Board Office, 10/F., Block C, Yan Chai Hospital, 7-11 Yan Chai Street, Tsuen Wan, N.T., Hong Kong.
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Enquiry: 3584 7880
同時也有2部Youtube影片,追蹤數超過995的網紅Ray Shen,也在其Youtube影片中提到,All We Need Is Music, And Someone To Share It With. ✅ Subscribe to my channel now! → https://www.youtube.com/c/RayShen0429 ⭐️ Join me on Facebook → h...
c# state machine 在 Ray Shen Facebook 的最佳解答
Ray's Music World Episode 156 (#RMW156) – Ray Shen
Tracklist
001 - Qoiet - smother BREAK
002 - Seven Lions & Kill The Noise - Cold Hearted
003 - Sullivan King - Bad Times
004 - The Chainsmokers & NGHTMRE - Save Yourself (NGHTMRE VIP Remix)
005 - Zomboy - Like A Bitch
006 - Excision - The Paradox
007 - Dillon Francis feat. G-Eazy - Say Less (Eptic Remix)
008 - Black Tiger Sex Machine & Apashe - Replicants
009 - Black Sun Empire & State of Mind feat. Virus Syndicate - Caterpillar
010 - Pendulum - Hold Your Colour (Noisia Remix)
011 - Snowia - Tomorrow Land
012 - Skrillex & Diplo feat. Kai - Mind
013 - Fabian Mazur feat. Neon Hitch - Don't Talk About It
014 - TYNAN & Roxas - Bye
015 - Minnesota - Technique (PartyWave Remix)
#RMW156
c# state machine 在 Taipei Ethereum Meetup Facebook 的最佳貼文
📜 [專欄新文章] The next generation Ethereum Virtual Machine — Ewasm VM
✍️ Peter Lai
📥 歡迎投稿: https://medium.com/taipei-ethereum-meetup #徵技術分享文 #使用心得 #教學文 #medium
The next generation Ethereum Virtual Machine — Ewasm VM
The next generation Ethereum Virtual Machine — Crosslink 2019 Taiwan
這篇文章是 Crosslink 2019 Taiwan 的一個議程紀錄:The next generation Ethereum Virtual Machine,由來自 Second State 的工程部 VP Hung-Ying Tai 分享 Ewasm VM 目前研究內容及未來的方向,內容非常精彩,包含了 EVM bytecode 、 Webassembly、Ewasm1.0 以及 Ewasm2.0 。
EVM bytecode 及 Webassembly(WASM)
以太坊的智能合約交易在執行時,例如 :轉 Token 到別的地址,我們是將 EVM bytecode 讀進以太坊的虛擬機執行,而 EVM bytecode 有以下幾點特色:
256 位元且堆疊式(staked-based)的虛擬機
很多高階的指令,例如:SSTORE, SLOAD, SHA3, EC, Call/Create contract
與實體系統架構(通常是 32/64 位元)有差異,而 256 位元則需要靠模擬來完成
較少程式語言(Vyper, Solidity, …)
Webassembly(WASM)是為了讓不同程式語言開發的套件都能在瀏覽器使用的一種二進位程式語言,WASM 有以下幾點特色:
堆疊式(staked-based)的虛擬機:有獨立的區域空間(暫存器或是記憶體),存取堆疊前 3 個物件(EVM 存取 16 個)
支持 32 / 64 位元的操作
沒有高階的指令
RISC 指令集也可以對應到 CPU ISA
較大的社群:主流的瀏覽器都支援,也有較多的程式語言(C++, Rust, GO, …)
Ewasm 1.0
接下來看看以太坊 Ewasm 的特性:
Ewasm 是 wasm 的子集合
因為不能有誤差,所以不支援浮點數運算
只能 import 以太坊的函式庫,避免 importㄒ系統函式庫
在每段指令之前插入 useGAS 來計算 GAS 的花費
Ethereum Environment Interface
EVM 裡有很多像是 SSLOAD, SHA3 的高階指令,這些指令在 Ewasm 1.0 裡,因為 WASM 可以動態讀取函式庫(模組),以太坊定義了 Ethereum Environment Interface 讓客戶端可以用不同的語言實作相對應的函示庫,而且也更容易完成 prototype 跟升級。
下圖是 Ethereum Environment Interface 定義的函數列表。
Ethereum Environment Interface Definition.
如何移除非法的指令?
Ewasm 使用 system contract 移除非法指令以及加入 useGas 的 bytecode,像是浮點數或是非法的 import,有以下兩種做法:
使用 smart contract 檢查合約的 bytecode
像目前的 precompiles 運行在客戶端上,在部署前先檢查合約
下圖是 Ewasm 1.0 的 stack,在部署合約前 Ewasm bytecode 會先經過 Sentinal 的檢查,成功部署後客戶端如果要執行合約會透過 EVM-C 跟 Heru(Wasm Engine)溝通。
Ewasm Stack
效能問題
究竟使用 Ewasm 效能真的會比較快嗎?講者分享各 EVM 執行 Sha1 以及 BN128mul 的結果,可以發現 EVM 在運行 BN128mul 時會是最快,主要是因為 WASM 支持 32 / 64 位元的操作,256 位元則需要另外模擬(1 個 256 位元的運算可以換成 25 個 64 位元的運算),所以 WASM 在跑 BN128mul 時才會比較慢。
Ewasm 2.0
Ewasm 2.0 的智能合約改叫 Execution Environments(EE),與 Ewasm 1.0 不一樣的有下列幾點
EE 全部都是 WASM 寫的
因為支援 cross shard,每個 EE 都是在一個 shard 上執行
EE 只能拿到 state root,而在合約的執行寫法也跟原來不一樣
EE 是 stateless
下圖可以看到 ERC20 Token 在 Ewasm 2.0 跟 Ewasm 1.0 storage 的比較,Ewasm 1.0 每個 data 都會有相對應的 key,而 Ewasm 2.0 只有存 state root,所以只能跟 state root 互動。
Ewasm 2.0 vs Ewasm 1.0
Phase One and Done
目前 Ewasm 2.0 到 phase one and done 的階段,也有測試的網路可以在 shard block 執行 EE,以太坊也有開源 Ewasm 2.0 的測試工具 Scout。
Hello World for Ewasm 2.0
上圖是 Eth 2 的 Hello World EE,可以看到 main 函數裡第一行讀取 pre state root,接下來驗證 block data size 是不是為 0,最後再將 state root 存回去,Eth 2 的智能合約寫起來都會像這樣。
結論
Ewasm 1.0 目前已經支援 EVM 1 大部分的功能也有測試鏈了,second state 開發一個編譯器 soll,能將 solidity 編譯成 Ewasm,想研究的人可以參考看看。
Ewasm 2.0 目前還在研究中,下圖是講者給大家分享的研究及貢獻的方向。
A MAYBE Roadmap
參考
Crosslink 簡報
webassembly.org
scout
soll
Ewasm overview and the precompile problem: Alex Beregszaszi and Casey Detrio @ Ethereum \\ Part 1 — YouTube
Ewasm overview and the precompile problem: Alex Beregszaszi and Casey Detrio @ Ethereum \\ Part 2 — YouTube
Wasm for blockchain&Eth2 execution: Paul Dworzanski,Alex Beregszaszi,Casey Detrio@Ethereum \\ Part 2 — YouTube
Ewasm for sharding
Ewasm updates
Ewasm design
wasm-intro
The next generation Ethereum Virtual Machine — Ewasm VM was originally published in Taipei Ethereum Meetup on Medium, where people are continuing the conversation by highlighting and responding to this story.
👏 歡迎轉載分享鼓掌
c# state machine 在 Ray Shen Youtube 的精選貼文
All We Need Is Music, And Someone To Share It With.
✅ Subscribe to my channel now! → https://www.youtube.com/c/RayShen0429
⭐️ Join me on Facebook → https://www.facebook.com/djRayShen/
🎧 Listen on mixcloud ▶ https://www.mixcloud.com/ray-shen/rays-music-world-episode-156-rmw156-ray-shen/
Tracklist
001 - Qoiet - smother BREAK (00:55)
002 - Seven Lions & Kill The Noise - Cold Hearted (04:55)
003 - Sullivan King - Bad Times (09:13)
004 - The Chainsmokers & NGHTMRE - Save Yourself (NGHTMRE VIP Remix) (13:10)
005 - Zomboy - Like A Bitch (15:20)
006 - Excision - The Paradox (19:01)
007 - Dillon Francis feat. G-Eazy - Say Less (Eptic Remix) (23:44)
008 - Black Tiger Sex Machine & Apashe - Replicants (27:09)
009 - Black Sun Empire & State Of Mind feat. Virus Syndicate - Caterpillar (32:24)
010 - Pendulum - Hold Your Colour (Noisia Remix) (38:48)
011 - Snowie - Tomorrow Land (43:47)
012 - Skrillex & Diplo feat. Kai - Mind (46:01)
013 - Fabian Mazur feat. Neon Hitch - Don't Talk About It (49:52)
014 - TYNAN & Roxas - Bye (52:35)
015 - Minnesota - Technique (PartyWave Remix) (55:06)
For more info check:
https://www.facebook.com/djRayShen/
https://www.youtube.com/c/RayShen0429
https://soundcloud.com/ray-shen-3
https://www.mixcloud.com/ray-shen/
https://twitter.com/98Ray0429
#RMW156
![post-title](https://i.ytimg.com/vi/rK-uWGCP3R4/hqdefault.jpg)
c# state machine 在 serpentza Youtube 的最佳解答
China's most iconic gaming console is the "Red White Machine" otherwise known as a famiclone (knockoff NES or knockoff Famicom) the company that has been producing them in China non-stop for 30 years has just released the 30th Anniversary version of their "Red White Machine", I got my hands on one and decided to talk about how gaming in China has always had a bit of a difficult history.
Video games in China is a massive industry and pastime that includes the production, sale, import/export, and playing of video games. China is the largest and highest grossing (revenues) video game market in the world, since 2015. The landscape of the topic is strongly shaped by China's average income level, rampant software piracy, and governmental measures to control game content and playing times. In 2011, China's PC game sector was worth $6 billion, the largest in the world. Arcade games are also a thriving industry in China. Console games were banned from the country in 2000, but the ban was lifted in July 2015.
In eSports, China has been the top country in terms of tournament winnings, possessing some of the world's best talents across video games.
The Special Administrative Regions of Hong Kong and Macau have unique legal and cultural environments, thus the information below does not apply in these two regions.
As with almost all mass media in the country, video games in China are subject to the policies of censorship in China.
Violating basic principles of the Constitution of the People's Republic of China
Threatening national unity, sovereignty and territorial integrity
Divulging state secrets
Threatening state security
Damaging national sovereignty
Disturbing social order
Infringing upon others' rights
On July 2015, the ban on video game consoles within the country was lifted. According to a statement from the country's Ministry of Culture, companies like Sony, Nintendo, and Microsoft — among others — will now be allowed to manufacture and sell video game consoles anywhere in the country.
Game consoles were first banned in 2000 due to fears that the devices — and the 3D worlds produced by them — had a negative effect on the mental and physical development of children. In 2015, China eased those restrictions by letting game console-makers operate in an experimental 11-square-mile area in Shanghai, known as the free trade zone.
The State General Administration of Press and Publication and anti-porn and illegal publication offices have also played a role in screening games.
Examples of banned games have included:
Hearts of Iron (for "distorting history and damaging China's sovereignty and territorial integrity")
I.G.I.-2: Covert Strike (for "intentionally blackening China and the Chinese army's image")
Command & Conquer: Generals - Zero Hour (for "smearing the image of China and the Chinese army")
Battlefield 4 (for "smearing the image of China and endangering national security")
In addition to banning games completely, several games have had their content screened to remove certain imagery deemed offensive or unfavorable. Common examples include skeletons or skulls being either fleshed out or removed entirely. Cases of which can be seen in Chinese versions of popular video games such as DOTA 2 and World of Warcraft.
⚫ Watch Conquering Southern China (my documentary) and see China like no one outside of China has ever seen it before: https://vimeo.com/ondemand/conqueringsouthernchina
⚫ Support me on Patreon: http://www.patreon.com/serpentza
Join me on Facebook: http://www.facebook.com/winstoninchina
Twitter: @serpentza
Instagram: serpent_za
My other channel: https://www.youtube.com/c/advchina
Music used: Virtual Vice - Sanctuary Run
Artist's bandcamp: https://virtual-vice.bandcamp.com/releases
![post-title](https://i.ytimg.com/vi/HDdvY35Av3M/hqdefault.jpg)