{"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\/cs\/blog\/news\/linux-zapushhen-na-igrovoj-pristavke-atari-jaguar","title":{"rendered":"Linux byl spu\u0161t\u011bn na hern\u00ed konzoli Atari Jaguar","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Po portov\u00e1n\u00ed Linuxu na Sega MegaDrive byla implementov\u00e1na mo\u017enost spu\u0161t\u011bn\u00ed j\u00e1dra Linuxu s sadou n\u00e1stroj\u016f Busybox na hern\u00ed konzoli Atari Jaguar, vydan\u00e9 v roce 1993. Konzole byla vybavena CPU Motorola 68000, dod\u00e1v\u00e1na s 2 MB RAM a jako trval\u00e9 \u00falo\u017ei\u0161t\u011b mohla pou\u017e\u00edvat cartridge s kapacitou a\u017e 6 MB. Za\u0159\u00edzen\u00ed bylo vybaveno dv\u011bma koprocesory: Tom (GPU s 32bitovou architekturou RISC + 64bitov\u00fd procesor pro zpracov\u00e1n\u00ed videa + 64bitov\u00fd procesor pro logick\u00e9 operace) a Jerry (DSP s 32bitovou architekturou RISC pro zpracov\u00e1n\u00ed zvuku). <\/p>\n

Podobn\u011b jako port pro Sega MegaDrive pro b\u011bh j\u00e1dra Linux na CPU Motorola 68000, kter\u00fd nem\u00e1 hardwarov\u00fd modul pro spr\u00e1vu pam\u011bti (MMU), bylo standardn\u00ed j\u00e1dro 7.2.0-rc1 sestaveno v re\u017eimu «NOMMU», kter\u00fd umo\u017e\u0148uje pou\u017e\u00edt ploch\u00fd model pam\u011bti s line\u00e1rn\u00edm adresn\u00edm prostorem (d\u0159\u00edv\u011bj\u0161\u00ed pr\u00e1ce pro provoz bez MMU vych\u00e1zely z fork j\u00e1dra uClinux, ale pak byly p\u0159ijaty do hlavn\u00edho j\u00e1dra ve form\u011b volby «NOMMU»). Probl\u00e9m s nedostatkem opera\u010dn\u00ed pam\u011bti byl vy\u0159e\u0161en jinak, prost\u0159ednictv\u00edm mechanismu execute-in-place (XIP), kter\u00fd umo\u017e\u0148uje p\u0159\u00edmo vykon\u00e1vat k\u00f3d j\u00e1dra z ROM bez kop\u00edrov\u00e1n\u00ed do opera\u010dn\u00ed pam\u011bti. <\/p>\n

RAM na za\u0159\u00edzen\u00ed je reflektov\u00e1no na adrese 0x000000, a ROM (kartridge) \u2014 na adrese 0x80000, a proto byly komponenty j\u00e1dra Linux rozd\u011bleny do dvou samostatn\u00fdch oblast\u00ed pam\u011bti: sekce .rodata a .text s konstantami a k\u00f3dem byly um\u00edst\u011bny na kartridgi, zat\u00edmco sekce .data a .bss s m\u011bniteln\u00fdmi daty v opera\u010dn\u00ed pam\u011bti. Jeliko\u017e CPU 68000 vyhled\u00e1v\u00e1 tabulku vektor\u016f p\u0159eru\u0161en\u00ed na adrese 0x0, a j\u00e1dro je ve skute\u010dnosti um\u00edst\u011bno na kartridgi, jej\u00ed\u017e obsah je reflektov\u00e1n na adrese 0x80000, byl nav\u00edc pou\u017eit hack pro kop\u00edrov\u00e1n\u00ed vektor\u016f p\u0159eru\u0161en\u00ed do RAM. <\/p>\n

Probl\u00e9m s absenc\u00ed \u010dasova\u010de v CPU Motorola 68000 byl vy\u0159e\u0161en vyu\u017eit\u00edm \u010dasova\u010d\u016f pou\u017e\u00edvan\u00fdch v DSP pro synt\u00e9zu zvuku. Tyto \u010dasova\u010de byly pou\u017eity k generov\u00e1n\u00ed p\u0159eru\u0161en\u00ed pro aktivaci pl\u00e1nova\u010de \u00faloh. Pro zobrazov\u00e1n\u00ed zpr\u00e1v j\u00e1dra b\u011bhem zav\u00e1d\u011bn\u00ed byl naps\u00e1n speci\u00e1ln\u00ed ovlada\u010d konzoly, kter\u00fd prov\u00e1d\u011bl v\u00fdstup simulac\u00ed paraleln\u00edho portu p\u0159es v\u00fdstupy TXD a RXD, ovl\u00e1dan\u00e9 p\u0159es DSP procesor. <\/p>\n

Pro sestaven\u00ed komponent prostor\u016f u\u017eivatele byl pou\u017eit n\u00e1stroj Buildroot s patche od projektu LinuxMD. Pro \u00fasporu pam\u011bti byla p\u0159i inicializaci p\u0159\u00edmo vol\u00e1na p\u0159\u00edkazov\u00e1 \u0159\u00e1dka «\\\/bin\\\/busybox sh», funkce malloc v knihovn\u011b uClibc byla nahrazena zjednodu\u0161enou verz\u00ed malloc-simple, kter\u00e1 neukl\u00e1d\u00e1 dal\u0161\u00ed metadata, a m\u00edsto plnohodnotn\u00e9ho bootloaderu, jako je U-Boot, bylo provedeno p\u0159\u00edm\u00e9 p\u0159ed\u00e1n\u00ed \u0159\u00edzen\u00ed j\u00e1dru p\u0159\u00edkazem «jmp $80000».

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Zdroj: 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 b\u011b\u017e\u00ed na hern\u00ed konzoli Atari Jaguar | ProHoster","description":"Po portov\u00e1n\u00ed Linuxu na Sega MegaDrive byla realizov\u00e1na mo\u017enost spu\u0161t\u011bn\u00ed j\u00e1dra Linux s sadou utilit Busybox na hern\u00ed konzoli Atari Jaguar, vydan\u00e9 v roce 1993.","canonical_url":"https:\/\/prohoster.info\/cs\/blog\/news\/linux-zapushhen-na-igrovoj-pristavke-atari-jaguar","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"cs_CZ","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 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