{"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\/sq\/blog\/novosti-interneta\/emulyator-risc-v-v-forme-pikselnogo-shejdera-pozvolivshij-zapustit-linux-v-vrchat","title":{"rendered":"Emulatori RISC-V n\u00eb form\u00ebn e shader-it t\u00eb piksel\u00ebve, i cili lejon t\u00eb ekzekutohet Linux n\u00eb VRChat.","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"
Jan\u00eb publikuar rezultatet e nj\u00eb eksperimenti p\u00ebr organizimin e nisjes s\u00eb Linux-it brenda nj\u00eb hap\u00ebsire 3D virtuale t\u00eb nj\u00eb loje online shum\u00eblojt\u00ebshe VRChat, e cila lejon ngarkimin e modeleve 3D me shaderat e saj. P\u00ebr realizimin e ides\u00eb s\u00eb planifikuar, u krijua nj\u00eb emulator i arkitektur\u00ebs RISC-V, q\u00eb ekzekutohet n\u00eb an\u00ebn e GPU si nj\u00eb shader piksel (fragment). (VRChat nuk mb\u00ebshtet shaderat e llogarit\u00ebsve dhe UAV). Kodi i emulatorit \u00ebsht\u00eb publikuar n\u00ebn licenc\u00ebn MIT. <\/p>\n
N\u00eb baz\u00eb t\u00eb emulatorit \u00ebsht\u00eb nj\u00eb realizim n\u00eb gjuh\u00ebn C, ku p\u00ebr krijimin e tij jan\u00eb p\u00ebrdorur njohurit\u00eb nga nj\u00eb emulator minimalist riscv-rust, i zhvilluar n\u00eb gjuh\u00ebn Rust. Kodi i p\u00ebrgatitur n\u00eb gjuh\u00ebn C transponohet n\u00eb nj\u00eb shader pikseli n\u00eb gjuh\u00ebn HLSL, i p\u00ebrshtatsh\u00ebm p\u00ebr ngarkim n\u00eb VRChat. Emulatori ofron mb\u00ebshtetje t\u00eb plot\u00eb p\u00ebr arkitektur\u00ebn e setit t\u00eb instrukcioneve rv32imasu, bllokun e kontrollit t\u00eb kujtes\u00ebs SV32 dhe nj\u00eb grup minimal periferik\u00ebsh (UART dhe timer). Kapacitetet e p\u00ebrgatitura jan\u00eb t\u00eb mjaftueshme p\u00ebr ngarkimin e b\u00ebrtham\u00ebs Linux 5.13.5 dhe mjedisit baz\u00eb t\u00eb komandave BusyBox, me t\u00eb cilin mund t\u00eb nd\u00ebrveprohet drejtp\u00ebrdrejt nga bota virtuale VRChat.
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Emulatori \u00ebsht\u00eb realizuar n\u00eb shader n\u00eb form\u00ebn e nj\u00eb tekste dinamike t\u00eb personalizuar (Unity Custom Render Texture), e cila \u00ebsht\u00eb plot\u00ebsuar me skriptet Udon t\u00eb ofruara p\u00ebr VRChat, t\u00eb angazhuara p\u00ebr menaxhimin e emulatorit gjat\u00eb funksionimit t\u00eb tij. P\u00ebrmbajtja e memorjes operative dhe gjendja e procesorit t\u00eb sistemit t\u00eb emuluar ruhen n\u00eb form\u00ebn e nj\u00eb teksti me madh\u00ebsi 2048×2048 piksele. Procesori i emuluar punon me frekuenc\u00eb 250 kHz. P\u00ebrve\u00e7 Linux, n\u00eb emulator gjithashtu mund t\u00eb ekzekutohet Micropython.
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P\u00ebr organizimin e ruajtjes s\u00eb p\u00ebrhershme t\u00eb t\u00eb dh\u00ebnave me mb\u00ebshtetje p\u00ebr lexim dhe shkruajtur aplikohet nj\u00eb truk, i lidhur me p\u00ebrdorimin e objektit Camera, i lidhur me nj\u00eb zon\u00eb katrore, e gjeneruar nga shaderi, dhe drejtimin e daljeve t\u00eb tekstur\u00ebs s\u00eb vizatuar n\u00eb hyrje t\u00eb shaderit. K\u00ebshtu, \u00e7do piksel i shkruar gjat\u00eb ekzekutimit t\u00eb shaderit t\u00eb pikselit mund t\u00eb lexohet gjat\u00eb p\u00ebrpunimit t\u00eb kadrit t\u00eb ardhsh\u00ebm. <\/p>\n
Me p\u00ebrdorimin e shaderave t\u00eb pikselit, p\u00ebr \u00e7do piksel t\u00eb teksteve startohet nj\u00eb instanc\u00eb e ve\u00e7ant\u00eb e shaderit. Ky ve\u00e7ori e b\u00ebn realizimin ndjesh\u00ebm m\u00eb kompleks dhe k\u00ebrkon koordinim t\u00eb ve\u00e7ant\u00eb t\u00eb gjendjes s\u00eb t\u00ebr\u00eb sistemit t\u00eb emuluar dhe p\u00ebrshtatjen e pozita s\u00eb pikselit t\u00eb procesuar me gjendjen e koduar n\u00eb t\u00eb CPU ose p\u00ebrmbajtjen e RAM-it t\u00eb sistemit t\u00eb emuluar (\u00e7do piksel mund t\u00eb kodoj\u00eb 128 bit informacion). Kodi i shaderit n\u00eb k\u00ebt\u00eb rast k\u00ebrkon p\u00ebrfshirjen e nj\u00eb numri t\u00eb madh kontrollesh, p\u00ebr leht\u00ebsimin e realizimit t\u00eb t\u00eb cilave \u00ebsht\u00eb angazhuar perl-preprocessor perlpp.
![\"Emulatori](\"\/wp-content\/uploads\/2021\/08\/da291c8d8172791b2e58d6cdb1c5b2e4.jpg\")
<\/center> ![\"Emulatori](\"\/wp-content\/uploads\/2021\/08\/7661b3895d32075c5e6cdf7f043d3532.jpg\")
<\/center> <\/p>\n![\"Emulatori](\"\/wp-content\/uploads\/2021\/08\/5b2ea8a3fcf98bff04a6455682381a67.jpg\")
<\/center> <\/p>\n![\"Luaj](\"https:\/\/img.youtube.com\/vi\/G2u7NOpzcBQ\/hqdefault.jpg\")
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