{"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\/hu\/blog\/news\/entuziasty-dizassemblirovali-mikrokod-i386-i-sozdali-otkrytyj-cpu-z386","title":{"rendered":"A lelkes amat\u0151r\u00f6k visszafejtett\u00e9k az i386 mikrok\u00f3dot, \u00e9s l\u00e9trehozt\u00e1k az open CPU z386-ot","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

<\/p>\n

<\/p>\n

\u00d6nk\u00e9ntesek sikeresen<\/a> siker\u00fclt kivonni \u00e9s disszembl\u00e1lni az Intel 80386 mikroprocesszor mikrok\u00f3dj\u00e1t, amely a dokument\u00e1ci\u00f3 hi\u00e1nya miatt «fekete dobozk\u00e9nt» volt sz\u00e1mon tartva. A mikrok\u00f3d bin\u00e1ris k\u00e9pe mesters\u00e9ges intelligencia felhaszn\u00e1l\u00e1s\u00e1val k\u00e9sz\u00fclt, a krist\u00e1lyr\u00f3l k\u00e9sz\u00edtett nagy felbont\u00e1s\u00fa f\u00e9nyk\u00e9pek alapj\u00e1n, m\u00edg a munk\u00e1j\u00e1nak logik\u00e1ja a krist\u00e1lyon l\u00e9v\u0151 kapcsolatok nyomk\u00f6vet\u00e9s\u00e9vel lett felt\u00e1rva. Fokozatosan meghat\u00e1rozt\u00e1k a mikrok\u00e9zik\u00f6nyvek (\u03bc-ops) szerkezet\u00e9t, mez\u0151it, a v\u00e9grehajt\u00e1s sorrendj\u00e9t \u00e9s az utas\u00edt\u00e1sok v\u00e9gjeleinek jelz\u0151it. A projekt eredm\u00e9nyei megjelentek<\/a> a GitHub-on k\u00f6zkincs.<\/p>\n

<\/noindex><\/noindex>
\n<\/p>\n

Meg\u00e1llap\u00edtott\u00e1k, hogy az 80386 CPU-ban minden utas\u00edt\u00e1s teljes m\u00e9rt\u00e9kben mikrok\u00f3don kereszt\u00fcl val\u00f3sul meg, m\u00edg a 8086 \u00e9s a modern processzorok eset\u00e9ben az utas\u00edt\u00e1sok egy r\u00e9sze k\u00f6zvetlen\u00fcl ker\u00fcl feldolgoz\u00e1sra. Ezenk\u00edv\u00fcl a 8086-os processzorokkal ellent\u00e9tben az 80386 mikrok\u00f3dja nem val\u00f3s\u00edtja meg k\u00f6zvetlen\u00fcl az algoritmusokat, hanem els\u0151sorban a hardveres gyors\u00edt\u00f3kat (szorz\u00f3, oszt\u00f3, gyors shift<\/a>, PTU (Protection Test Unit)).<\/p>\n

<\/noindex><\/p>\n

A kutat\u00e1s sor\u00e1n egy lehets\u00e9ges biztons\u00e1gi probl\u00e9m\u00e1t is felfedeztek a bemeneti\/kimeneti hozz\u00e1f\u00e9r\u00e9si jogok bitk\u00e9p\u00e9nek feldolgoz\u00e1sa sor\u00e1n (IO permission bitmap): n\u00e9gy b\u00e1jtos portoz\u00e1s eset\u00e9n a hozz\u00e1f\u00e9r\u00e9si jogok bitjeit csak az els\u0151 h\u00e1rom b\u00e1jt eset\u00e9ben ellen\u0151rizt\u00e9k, m\u00edg a negyedik b\u00e1jt hozz\u00e1f\u00e9r\u00e9se nem ker\u00fclt ellen\u0151rz\u00e9sre, ami elm\u00e9letileg lehet\u0151v\u00e9 tette a tiltott hardverregiszterekhez val\u00f3 hozz\u00e1f\u00e9r\u00e9st.<\/p>\n

<\/p>\n

A k\u00f6zz\u00e9tett mikrok\u00f3d alapj\u00e1n kifejlesztett\u00e9k<\/a> a ny\u00edlt CPU-t z386<\/a>, amelyet SystemVerilog nyelven val\u00f3s\u00edtottak meg \u00e9s FPGA-n m\u0171k\u00f6dik. A z386 nem val\u00f3s\u00edtotta meg minden utas\u00edt\u00e1st k\u00fcl\u00f6n- k\u00fcl\u00f6n RTL (wikipedia.org)<\/a> (regiszter-\u00e1tviteli szint) a z386-ban azok a hardveres strukt\u00far\u00e1k val\u00f3sulnak meg, amelyeket az eredeti mikrok\u00f3d ir\u00e1ny\u00edt. A kidolgozott megval\u00f3s\u00edt\u00e1s teljes\u00edtm\u00e9nye megegyezik egy gyors 386-os PC-vel (~70MHz). A z386 alatt siker\u00fclt elind\u00edtani a DOS 6\/7-et, a DOS\/4GW-t, a DOS\/32A-t \u00e9s olyan j\u00e1t\u00e9kokat, mint a Doom \u00e9s a Cannon Fodder.<\/p>\n

<\/noindex><\/p>\n

Forr\u00e1s: linux.org.ru<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 «\u0447\u0451\u0440\u043d\u044b\u043c \u044f\u0449\u0438\u043a\u043e\u043c». \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 […]<\/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\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\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47\u00d6nk\u00e9ntesek diszassembl\u00e1lt\u00e1k az i386 mikrok\u00f3dj\u00e1t, \u00e9s l\u00e9trehozt\u00e1k a ny\u00edlt CPU-t z386 | ProHoster","description":"\u00d6nk\u00e9ntesek","canonical_url":"https:\/\/prohoster.info\/hu\/blog\/news\/entuziasty-dizassemblirovali-mikrokod-i386-i-sozdali-otkrytyj-cpu-z386","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"hu_HU","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u042d\u043d\u0442\u0443\u0437\u0438\u0430\u0441\u0442\u044b \u0434\u0438\u0437\u0430\u0441\u0441\u0435\u043c\u0431\u043b\u0438\u0440\u043e\u0432\u0430\u043b\u0438 \u043c\u0438\u043a\u0440\u043e\u043a\u043e\u0434 i386 \u0438 \u0441\u043e\u0437\u0434\u0430\u043b\u0438 \u043e\u0442\u043a\u0440\u044b\u0442\u044b\u0439 CPU z386 | ProHoster","og:description":"\u042d\u043d\u0442\u0443\u0437\u0438\u0430\u0441\u0442\u044b","og:url":"https:\/\/prohoster.info\/hu\/blog\/news\/entuziasty-dizassemblirovali-mikrokod-i386-i-sozdali-otkrytyj-cpu-z386","og:image":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:secure_url":"https:\/\/prohoster.info\/wp-content\/uploads\/2021\/11\/logo-350.jpg","og:image:width":350,"og:image:height":350,"article:published_time":"2026-05-26T00:49:06+00:00","article:modified_time":"2026-05-26T00:49:06+00:00","article:publisher":"https:\/\/www.facebook.com\/prohoster","article:author":"https:\/\/www.facebook.com\/prohoster"},"aioseo_meta_data":[],"gt_translate_keys":[{"key":"link","format":"url"}],"_links":{"self":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/181741","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/comments?post=181741"}],"version-history":[{"count":0,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/posts\/181741\/revisions"}],"wp:attachment":[{"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/media?parent=181741"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/categories?post=181741"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/prohoster.info\/hu\/wp-json\/wp\/v2\/tags?post=181741"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}