{"id":181741,"date":"2026-05-26T02:49:06","date_gmt":"2026-05-26T00:49:06","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/entuziasty-dizassemblirovali-mikrokod-i386-i-sozdali-otkrytyj-cpu-z386"},"modified":"2026-05-26T02:49:06","modified_gmt":"2026-05-26T00:49:06","slug":"entuziasty-dizassemblirovali-mikrokod-i386-i-sozdali-otkrytyj-cpu-z386","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/news\/entuziasty-dizassemblirovali-mikrokod-i386-i-sozdali-otkrytyj-cpu-z386","title":{"rendered":"Entusiastid disassembliasid i386 mikrokoodi ja l\u00f5id avatud CPU z386","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/05\/495040ba8dffef375f674e59965a66da.jpg\" style=\"display:block;margin: 0 auto;\" \/><\/p>\n<p><noindex>      <noindex><\/p>\n<p>Entusiastid <a rel=\"nofollow\" href=\"https:\/\/www.reenigne.org\/blog\/80386-microcode-disassembled\">suutsid<\/a> \u00f5nnestus v\u00e4lja t\u00f5mmata ja disassembeldada Intel 80386 protsessori mikrokood, mida dokumentatsiooni puudumise t\u00f5ttu peeti \"mustaks kastiks\". Mikrokoodi binaarne pilt loodi AI abiga kristalli k\u00f5rge eraldusv\u00f5imega fotode p\u00f5hjal, ning t\u00f6\u00f6logika anal\u00fc\u00fcsiti kristalli \u00fchenduste j\u00e4lgimise kaudu. Aja jooksul m\u00e4\u00e4rati mikrok\u00e4skude (\u03bc-ops) struktuur, v\u00e4ljad, t\u00e4itmisj\u00e4rjekord ja k\u00e4skude l\u00f5pu markerid. Projekti saavutused <a rel=\"nofollow\" href=\"https:\/\/github.com\/reenigne\/x86_microcode\/tree\/main\/80386\">avaldatud<\/a> on GitHub avaliku omandina.<\/p>\n<p><\/noindex><\/noindex><br \/>\n<noindex><\/p>\n<p>Selgus, et CPU 80386 puhul t\u00e4idetakse iga k\u00e4sk t\u00e4ielikult mikrokoodi kaudu, samas kui 8086 ja kaasaegsed protsessorid t\u00f6\u00f6tlevad osa k\u00e4skudest otse. Lisaks sellele, erinevalt 8086 protsessoritest, ei rakenda 80386 mikrokood algoritme otseselt, vaid konfigureerib enamasti riistvarakiirendusi (korrutaja, jagaja, <a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/Barrel_shifter\">kiire nihke<\/a>, PTU (Protection Test Unit)).<\/p>\n<p><\/noindex><\/p>\n<p>Uuringu k\u00e4igus avastati ka v\u00f5imalik turbeprobleem, kui t\u00f6\u00f6deldakse juurdep\u00e4\u00e4suluba IO (sisendi \/ v\u00e4ljundi luba) bitmap: 4-baidise porti juurdep\u00e4\u00e4su puhul kontrolitakse \u00f5igusi ainult esimesed 3 baiti, samas kui 4. baidi juurdep\u00e4\u00e4su ei kontrollita, mis teoreetiliselt v\u00f5imaldas juurdep\u00e4\u00e4su riistvara registritele, millele ei tohi olla juurdep\u00e4\u00e4s.<\/p>\n<p><noindex><\/p>\n<p>Avaldatud mikrokoodi alusel <a rel=\"nofollow\" href=\"https:\/\/nand2mario.github.io\/posts\/2026\/z386\">on loodud<\/a> avatud CPU <a rel=\"nofollow\" href=\"https:\/\/github.com\/nand2mario\/z386\">z386<\/a>, mis on rakendatud SystemVerilogi keeles ja t\u00f6\u00f6tab FPGA-de abil. Iga k\u00e4su rakendamise asemel eraldiseisva <a rel=\"nofollow\" href=\"https:\/\/ru.wikipedia.org\/wiki\/%D0%A3%D1%80%D0%BE%D0%B2%D0%B5%D0%BD%D1%8C_%D1%80%D0%B5%D0%B3%D0%B8%D1%81%D1%82%D1%80%D0%BE%D0%B2%D1%8B%D1%85_%D0%BF%D0%B5%D1%80%D0%B5%D0%B4%D0%B0%D1%87\">RTL (wikipedia.org)<\/a> (Register-transfer level) on z386-s rakendatud riistvarastruktuurid, mida juhib originaalne mikrokood. Valmistatud rakenduse j\u00f5udlus vastab kiirele 386 PC-le (~70MHz). z386 all suudeti edukalt k\u00e4ivitada DOS 6\/7, DOS\/4GW, DOS\/32A ja m\u00e4nge, nagu Doom ja Cannon Fodder.<\/p>\n<p><\/noindex><\/p>\n<p>Allikas: <a \ncontent=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.linux.org.ru\/news\/hardware\/18300992\">linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u042d\u043d\u0442\u0443\u0437\u0438\u0430\u0441\u0442\u044b \u0441\u043c\u043e\u0433\u043b\u0438 \u0443\u0441\u043f\u0435\u0448\u043d\u043e \u0438\u0437\u0432\u043b\u0435\u0447\u044c \u0438 \u0434\u0438\u0437\u0430\u0441\u0441\u0435\u043c\u0431\u043b\u0438\u0440\u043e\u0432\u0430\u0442\u044c \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u0434 \u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430 Intel 80386, \u043a\u043e\u0442\u043e\u0440\u044b\u0439 \u0438\u0437-\u0437\u0430 \u043e\u0442\u0441\u0443\u0442\u0441\u0442\u0432\u0438\u044f \u0434\u043e\u043a\u0443\u043c\u0435\u043d\u0442\u0430\u0446\u0438\u0438 \u0441\u0447\u0438\u0442\u0430\u043b\u0441\u044f &laquo;\u0447\u0451\u0440\u043d\u044b\u043c \u044f\u0449\u0438\u043a\u043e\u043c&raquo;. \u0411\u0438\u043d\u0430\u0440\u043d\u044b\u0439 \u043e\u0431\u0440\u0430\u0437 \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u0434\u0430 \u0431\u044b\u043b \u0432\u043e\u0441\u0441\u043e\u0437\u0434\u0430\u043d \u0441 \u043f\u0440\u0438\u0432\u043b\u0435\u0447\u0435\u043d\u0438\u0435\u043c AI \u043f\u043e \u0444\u043e\u0442\u043e\u0433\u0440\u0430\u0444\u0438\u044f\u043c \u043a\u0440\u0438\u0441\u0442\u0430\u043b\u043b\u0430 \u0432 \u0432\u044b\u0441\u043e\u043a\u043e\u043c \u0440\u0430\u0437\u0440\u0435\u0448\u0435\u043d\u0438\u0438, \u0430 \u043b\u043e\u0433\u0438\u043a\u0430 \u0440\u0430\u0431\u043e\u0442\u044b \u0440\u0430\u0437\u043e\u0431\u0440\u0430\u043d\u0430 \u0447\u0435\u0440\u0435\u0437 \u0442\u0440\u0430\u0441\u0441\u0438\u0440\u043e\u0432\u043a\u0443 \u0441\u043e\u0435\u0434\u0438\u043d\u0435\u043d\u0438\u0439 \u043d\u0430 \u043a\u0440\u0438\u0441\u0442\u0430\u043b\u043b\u0435. \u041f\u043e\u0441\u0442\u0435\u043f\u0435\u043d\u043d\u043e \u0431\u044b\u043b\u0438 \u043e\u043f\u0440\u0435\u0434\u0435\u043b\u0435\u043d\u044b \u0441\u0442\u0440\u0443\u043a\u0442\u0443\u0440\u0430 \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u043c\u0430\u043d\u0434 (\u03bc-ops), \u043f\u043e\u043b\u044f, \u043f\u043e\u0440\u044f\u0434\u043e\u043a \u0438\u0441\u043f\u043e\u043b\u043d\u0435\u043d\u0438\u044f \u0438 \u043c\u0430\u0440\u043a\u0435\u0440\u044b \u043a\u043e\u043d\u0446\u0430 \u0438\u043d\u0441\u0442\u0440\u0443\u043a\u0446\u0438\u0439. \u041d\u0430\u0440\u0430\u0431\u043e\u0442\u043a\u0438 \u043f\u0440\u043e\u0435\u043a\u0442\u0430 [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":8,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-181741","post","type-post","status-publish","format-standard","hentry","category-news"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.1.1 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u042d\u043d\u0442\u0443\u0437\u0438\u0430\u0441\u0442\u044b\" \/>\n\t<meta name=\"robots\" content=\"max-image-preview:large\" \/>\n\t<meta name=\"author\" content=\"Erik Peterson\"\/>\n\t<link rel=\"canonical\" href=\"https:\/\/prohoster.info\/et\/blog\/news\/entuziasty-dizassemblirovali-mikrokod-i386-i-sozdali-otkrytyj-cpu-z386\" \/>\n\t<meta name=\"generator\" content=\"All in One SEO (AIOSEO) 5.0.1.1\" \/>\n\t\t<meta property=\"og:locale\" content=\"et_EE\" \/>\n\t\t<meta 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