{"id":182545,"date":"2026-07-08T22:53:25","date_gmt":"2026-07-08T20:53:26","guid":{"rendered":"https:\/\/prohoster.info\/blog\/novosti-interneta\/linux-zapushhen-na-igrovoj-pristavke-atari-jaguar"},"modified":"2026-07-08T22:53:25","modified_gmt":"2026-07-08T20:53:26","slug":"linux-zapushhen-na-igrovoj-pristavke-atari-jaguar","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sl\/blog\/news\/linux-zapushhen-na-igrovoj-pristavke-atari-jaguar","title":{"rendered":"Linux je bil zagnan na igralski konzoli Atari Jaguar","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Po prenosu Linux na Sega MegaDrive je bila realizirana mo\u017enost zagona jedra Linux z nizom orodij Busybox na igralni konzoli Atari Jaguar, izdani leta 1993. Konzola je bila opremljena s CPU Motorola 68000, imela je 2 MB RAM in je za trajno shranjevanje lahko uporabljala kartrid\u017ee s kapaciteto do 6 MB. Naprava je bila opremljena z dvema koprocesorjema: Tom (GPU z 32-bitno RISC arhitekturo + 64-bitni procesor za obdelavo videa + 64-bitni procesor za izvajanje logi\u010dnih operacij) in Jerry (DSP z 32-bitno RISC arhitekturo za obdelavo zvoka). <\/p>\n

Na enako kot pri priklju\u010dku za Sega MegaDrive za izvajanje jedra Linux na CPU Motorola 68000, ki nima strojne enote za upravljanje s pomnilnikom (MMU), je bilo standardno jedro 7.2.0-rc1 zgrajeno v na\u010dinu «NOMMU», ki omogo\u010da uporabo ploskega modela pomnilnika z linearnim naslovnim prostorom (prej\u0161nji dose\u017eki za delovanje brez MMU so se razvijali v forku jedra uClinux, vendar so bili nato sprejeti v glavno jedro v obliki mo\u017enosti «NOMMU»). Te\u017eava s pomanjkanjem delovnega pomnilnika je bila re\u0161ena druga\u010de, s pomo\u010djo mehanizma execute-in-place (XIP), ki omogo\u010da neposredno izvajanje kode jedra iz ROM-a brez kopiranja v delovni pomnilnik. <\/p>\n

RAM na napravi je odra\u017eena na naslovu 0x000000, medtem ko je ROM (k\u0430\u0440\u0442\u0443\u0161a) — na naslovu 0x80000, posledi\u010dno so bile komponente jedra Linux razdeljene na dva lo\u010dena obmo\u010dja pomnilnika: sekcije .rodata in .text s konstantami in kodo so bile name\u0161\u010dene na kartu\u0161i, medtem ko so bile sekcije .data in .bss s spreminjajo\u010dimi se podatki v delovnem pomnilniku. Ker CPU 68000 i\u0161\u010de tabelo vektorjev prekinitev na naslovu 0x0, jedro pa je v resnici name\u0161\u010deno na kartu\u0161i, katere vsebina je odraz v naslovu 0x80000, je bil dodatno uporabljen hakat s kopiranjem vektorjev prekinitev v RAM. <\/p>\n

Te\u017eavo z odsotnostjo \u010dasovnika v CPU Motorola 68000 je bilo mogo\u010de re\u0161iti s pomo\u010djo \u010dasovnikov, ki se uporabljajo v DSP za sintezo zvoka. Ti \u010dasovniki so bili uporabljeni za generiranje prekinitev za aktivacijo naloge na\u010drtovalnika. Za izhod sporo\u010dil jedra med nalaganjem je bil napisan lo\u010den gonilnik za konzolo, ki je izvajal izhod s simulacijo paralelnega porta preko izhodov TXD in RXD, ki jih upravlja DSP procesor. <\/p>\n

Za sestavljanje komponent prostor uporabnika je bil uporabljen gradbeni pribor Buildroot s popravki projekta LinuxMD. Za var\u010devanje s pomnilnikom se je pri inicializaciji neposredno klicala ukazna lupina «\\\/bin\\\/busybox sh», funkcija malloc v knji\u017enici uClibc je bila zamenjana s poenostavljeno razli\u010dico malloc-simple, ki ne shranjuje dodatnih metapodatkov, namesto polnega zaganjalnika, kot je U-Boot, pa se je izvajala neposredna preusmeritev nadzora na jedro z ukazom «jmp $80000».

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Izvor: opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c Linux \u043d\u0430 Sega MegaDrive \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u044f\u0434\u0440\u0430 Linux \u0441 \u043d\u0430\u0431\u043e\u0440\u043e\u043c \u0443\u0442\u0438\u043b\u0438\u0442 Busybox \u043d\u0430 \u0438\u0433\u0440\u043e\u0432\u043e\u0439 \u043a\u043e\u043d\u0441\u043e\u043b\u0438 Atari Jaguar, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0439 \u0432 1993 \u0433\u043e\u0434\u0443. \u041f\u0440\u0438\u0441\u0442\u0430\u0432\u043a\u0430 \u043a\u043e\u043c\u043f\u043b\u0435\u043a\u0442\u043e\u0432\u0430\u043b\u0430\u0441\u044c CPU Motorola 68000, \u043f\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u043b\u0430\u0441\u044c \u0441 2 \u041c\u0411 \u041e\u0417\u0423 \u0438 \u0432 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[…]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":10,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[702],"tags":[],"class_list":["post-182545","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\n","aioseo_head_json":{"title":"\ud83e\udd47Linux zagnan na igralni konzoli Atari Jaguar | ProHoster","description":"Takoj po prenosu Linuxa na Sega MegaDrive je bila omogo\u010dena zmo\u017enost zagon jedra Linux z nizom orodij Busybox na igralni konzoli Atari Jaguar, izdani leta 1993.","canonical_url":"https:\/\/prohoster.info\/sl\/blog\/news\/linux-zapushhen-na-igrovoj-pristavke-atari-jaguar","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"sl_SI","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\udd47Linux \u0437\u0430\u043f\u0443\u0449\u0435\u043d \u043d\u0430 \u0438\u0433\u0440\u043e\u0432\u043e\u0439 \u043f\u0440\u0438\u0441\u0442\u0430\u0432\u043a\u0435 Atari Jaguar | ProHoster","og:description":"\u0421\u043b\u0435\u0434\u043e\u043c \u0437\u0430 \u043f\u043e\u0440\u0442\u0438\u0440\u043e\u0432\u0430\u043d\u0438\u0435\u043c Linux \u043d\u0430 Sega MegaDrive \u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u0432\u043e\u0437\u043c\u043e\u0436\u043d\u043e\u0441\u0442\u044c \u0437\u0430\u043f\u0443\u0441\u043a\u0430 \u044f\u0434\u0440\u0430 Linux \u0441 \u043d\u0430\u0431\u043e\u0440\u043e\u043c \u0443\u0442\u0438\u043b\u0438\u0442 Busybox \u043d\u0430 \u0438\u0433\u0440\u043e\u0432\u043e\u0439 \u043a\u043e\u043d\u0441\u043e\u043b\u0438 Atari Jaguar, \u0432\u044b\u043f\u0443\u0449\u0435\u043d\u043d\u043e\u0439 \u0432 1993 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