{"id":101103,"date":"2021-08-27T10:23:05","date_gmt":"2021-08-27T08:23:07","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat"},"modified":"2021-08-27T10:23:05","modified_gmt":"2021-08-27T08:23:07","slug":"emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat","title":{"rendered":"RISC-V emulaator pikslite shendina, mis v\u00f5imaldas Linuxi k\u00e4ivitada VRChatis","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

On avaldatud katsetuste tulemused Linuxi k\u00e4ivitamisest kolmem\u00f5\u00f5tmelises m\u00e4ngus VRChat, mis v\u00f5imaldab laadida 3D mudeleid oma shendidega. Tagamaks soovitud idee teostamine, loodi RISC-V arhitektuuri emulaator, mille k\u00e4itus GPU poolt pikselite shendina (VRChat ei toeta arvutus shendeid ja UAV). Emulaatori kood on avaldatud MIT litsentsi alusel. <\/p>\n

Emulaatori aluseks on C keeles rakendatud teostus, mille loomisel on samuti kasutatud minimalistliku riscv-rust emulaatori arengut, mis on arendatud Rust keeles. Valmistatud C-kood t\u00f5lgitakse pikseli shendiks HLSL keeles, mis on VRChatis laadimiseks sobiv. Emulaator pakub toetust RV32IMASU k\u00e4skude komplektile, SV32 m\u00e4luhalduse blokkidele ja minimaalset komplekti perifeerseid seadmeid (UART ja taimer). Valmistatud v\u00f5imalused on piisavad Linuxi 5.13.5 tuuma ja BusyBoxi p\u00f5hik\u00e4surea keskuse laadimiseks, millega saab otse VRChati virtuaalsest maailmast suhelda.

\"RISC-V<\/center>
\"RISC-V<\/center> <\/p>\n

\u042d\u043c\u0443\u043b\u044f\u0442\u043e\u0440 \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d \u0432 \u0448\u0435\u0439\u0434\u0435\u0440\u0435 \u0432 \u0444\u043e\u0440\u043c\u0435 \u0441\u043e\u0431\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0439 \u0434\u0438\u043d\u0430\u043c\u0438\u0447\u0435\u0441\u043a\u043e\u0439 \u0442\u0435\u043a\u0441\u0442\u0443\u0440\u044b (Unity Custom Render Texture), \u0434\u043e\u043f\u043e\u043b\u043d\u0435\u043d\u043d\u043e\u0439 \u043f\u0440\u0435\u0434\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u043c\u044b\u043c\u0438 \u0434\u043b\u044f VRChat \u0441\u043a\u0440\u0438\u043f\u0442\u0430\u043c\u0438 Udon, \u0437\u0430\u0434\u0435\u0439\u0441\u0442\u0432\u043e\u0432\u0430\u043d\u043d\u044b\u043c\u0438 \u0434\u043b\u044f \u0443\u043f\u0440\u0430\u0432\u043b\u0435\u043d\u0438\u044f \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u043e\u043c \u0432\u043e \u0432\u0440\u0435\u043c\u044f \u0435\u0433\u043e \u0432\u044b\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f. \u0421\u043e\u0434\u0435\u0440\u0436\u0438\u043c\u043e\u0435 \u043e\u043f\u0435\u0440\u0430\u0442\u0438\u0432\u043d\u043e\u0439 \u043f\u0430\u043c\u044f\u0442\u0438 \u0438 \u0441\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430 \u044d\u043c\u0443\u043b\u0438\u0440\u0443\u0435\u043c\u043e\u0439 \u0441\u0438\u0441\u0442\u0435\u043c\u044b \u0441\u043e\u0445\u0440\u0430\u043d\u044f\u0435\u0442\u0441\u044f \u0432 \u0444\u043e\u0440\u043c\u0435 \u0442\u0435\u043a\u0441\u0442\u0443\u0440\u044b, \u0440\u0430\u0437\u043c\u0435\u0440\u043e\u043c 2048×2048 \u043f\u0438\u043a\u0441\u0435\u043b\u0435\u0439. \u042d\u043c\u0443\u043b\u0438\u0440\u0443\u0435\u043c\u044b\u0439 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440 \u0440\u0430\u0431\u043e\u0442\u0430\u0435\u0442 \u0441 \u0447\u0430\u0441\u0442\u043e\u0442\u043e\u0439 250 kHz. \u041f\u043e\u043c\u0438\u043c\u043e Linux \u0432 \u044d\u043c\u0443\u044f\u043b\u0442\u043e\u0440\u0435 \u0442\u0430\u043a\u0436\u0435 \u043c\u043e\u0436\u0435\u0442 \u0431\u044b\u0442\u044c \u0437\u0430\u043f\u0443\u0449\u0435\u043d Micropython.

\"RISC-V<\/center> <\/p>\n

P\u00fcsivalt andmete salvestamiseks, mis toetab lugemist ja kirjutamist, kasutatakse trikki, mis on seotud objekti Camera kasutamisega, mis on seotud piklike aladega, mida shend genereerib, ja renderdatud tekstuuri v\u00e4ljundi suunamisega shendi sisendi poole. Seega saab iga piksel, mis kirjutatakse pikseli shendi t\u00e4itmise protsessis, lugeda j\u00e4rgmise kaadri t\u00f6\u00f6tlemisel. <\/p>\n

Pikselishaderite kasutamisel k\u00e4ivitatakse iga tekstuuri piksliga paralleelselt eraldi shadeerika. See omadus teeb elluviimise oluliselt keerulisemaks ja n\u00f5uab kogu emuleeritud s\u00fcsteemi oleku eraldi koordineerimist ning t\u00f6\u00f6deldava piksliga seotud CPU oleku v\u00f5i emuleeritud s\u00fcsteemi RAM-i sisu kodeeritud positsiooni vastavust (iga piksel v\u00f5ib kodeerida 128 bitti teavet). Shadeerikood n\u00f5uab samas hiiglasliku arvu kontrollide kaasamist, mille teostamise h\u00f5lbustamiseks on kasutatud perl-eelseisundit perlpp.

\r\n \"M\u00e4ngi\r\n
<\/div>\r\n <\/div><\/center>
\n
Allikas: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

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\u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u0437\u0430\u0434\u0443\u043c\u0430\u043d\u043d\u043e\u0439 \u0438\u0434\u0435\u0438 \u0431\u044b\u043b \u0441\u043e\u0437\u0434\u0430\u043d \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440 \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b RISC-V, \u0432\u044b\u043f\u043e\u043b\u043d\u044f\u0435\u043c\u044b\u0439 \u043d\u0430 \u0441\u0442\u043e\u0440\u043e\u043d\u0435 GPU \u0432 \u0432\u0438\u0434\u0435 \u043f\u0438\u043a\u0441\u0435\u043b\u044c\u043d\u043e\u0433\u043e (\u0444\u0440\u0430\u0433\u043c\u0435\u043d\u0442\u043d\u043e\u0433\u043e) \u0448\u0435\u0439\u0434\u0435\u0440\u0430 (VRChat \u043d\u0435 \u043f\u043e\u0434\u0434\u0435\u0440\u0436\u0438\u0432\u0430\u0435\u0442 \u0432\u044b\u0447\u0438\u0441\u043b\u0438\u0442\u0435\u043b\u044c\u043d\u044b\u0435 \u0448\u0435\u0439\u0434\u0435\u0440\u044b \u0438 UAV). \u041a\u043e\u0434 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u0430 \u043e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d \u043f\u043e\u0434 \u043b\u0438\u0446\u0435\u043d\u0437\u0438\u0435\u0439 MIT. \u0412 \u043e\u0441\u043d\u043e\u0432\u0435 \u044d\u043c\u0443\u043b\u044f\u0442\u043e\u0440\u0430 \u0437\u0430\u043b\u043e\u0436\u0435\u043d\u0430 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u044f […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":101104,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-101103","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47RISC-V emulaator pikselishaderina, mis 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