{"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\/ro\/blog\/news\/linux-zapushhen-na-igrovoj-pristavke-atari-jaguar","title":{"rendered":"Linux a fost lansat pe consola de jocuri Atari Jaguar","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Dup\u0103 portarea Linux pe Sega MegaDrive, a fost realizat\u0103 posibilitatea de a rula nucleul Linux cu setul de utilitare Busybox pe consola de jocuri Atari Jaguar, lansat\u0103 \u00een 1993. Consola era echipat\u0103 cu un CPU Motorola 68000, livrat\u0103 cu 2 MB RAM \u0219i putea folosi cartu\u0219e de p\u00e2n\u0103 la 6 MB ca stocare permanent\u0103. Dispozitivul era dotat cu dou\u0103 coprocesoare: Tom (GPU cu arhitectur\u0103 RISC de 32 de bi\u021bi + procesor video de 64 de bi\u021bi + procesor de 64 de bi\u021bi pentru opera\u021biuni logice) \u0219i Jerry (DSP cu arhitectur\u0103 RISC de 32 de bi\u021bi pentru procesarea sunetului). <\/p>\n

\u00cen analogie cu portul pentru Sega MegaDrive pentru a rula nucleul Linux pe CPU Motorola 68000, care nu are un modul hardware de gestionare a memoriei (MMU), nucleul standard 7.2.0-rc1 a fost compilat \u00een modul \"NOMMU\" utilizat pentru microcontrolere, permi\u021b\u00e2nd utilizarea unui model de memorie plat cu un spa\u021biu de adresare liniar (anterior, dezvolt\u0103rile pentru a func\u021biona f\u0103r\u0103 MMU au fost dezvoltate \u00eentr-un fork al nucleului uClinux, dar apoi au fost acceptate \u00een nucleul principal sub forma op\u021biunii \"NOMMU\"). Problema lipsei de memorie RAM a fost rezolvat\u0103 diferit, prin utilizarea mecanismului execute-in-place (XIP), care permite executarea direct\u0103 a codului nucleului din ROM f\u0103r\u0103 a-l copia \u00een memoria RAM. <\/p>\n

RAM pe dispozitiv este reflectat\u0103 la adresa 0x000000, iar ROM (cartu\u0219ul) \u2014 la adresa 0x80000; prin urmare, componentele nucleului Linux au fost \u00eemp\u0103r\u021bite \u00een dou\u0103 zone de memorie separate: sec\u021biunile .rodata \u0219i .text cu constantele \u0219i codul au fost amplasate pe cartu\u0219, iar sec\u021biunile .data \u0219i .bss cu datele modificabile \u00een memoria RAM. Deoarece CPU 68000 caut\u0103 tabela vectorilor de \u00eentrerupere la adresa 0x0, iar nucleul este de fapt plasat pe cartu\u0219, al c\u0103rui con\u021binut este reflectat la adresa 0x80000, a fost aplicat un hack suplimentar cu copierea vectorilor de \u00eentrerupere \u00een RAM. <\/p>\n

Problema lipsei unui timer \u00een CPU Motorola 68000 a fost rezolvat\u0103 prin utilizarea timerelor folosite \u00een DSP pentru sinteza sunetului. Aceste temporizatoare au fost folosite pentru a genera \u00eentreruperi pentru activarea planificatorului de sarcini. Pentru a afi\u0219a mesajele nucleului \u00een timpul boot\u0103rii, a fost scris un driver de consol\u0103 separat, care realiza afi\u0219area simul\u00e2nd un port paralel prin pinurile TXD \u0219i RXD, controlate prin procesorul DSP. <\/p>\n

Pentru construirea componentelor spa\u021biului utilizatorului a fost folosit instrumentul Buildroot cu patch-uri de la proiectul LinuxMD. Pentru a economisi memorie la ini\u021bializare, a fost apelat\u0103 direct shell-ul comand\u0103 \"\/bin\/busybox sh\"; func\u021bia malloc din biblioteca uClibc a fost \u00eenlocuit\u0103 cu o variant\u0103 simplificat\u0103 malloc-simple, care nu salveaz\u0103 metadate suplimentare, iar, \u00een locul unui bootloader complet, cum ar fi U-Boot, s-a efectuat o transmitere direct\u0103 a controlului c\u0103tre nucleu cu comanda \"jmp $80000\".

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Sursa: opennet.ro<\/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 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435 \u043f\u043e\u0441\u0442\u043e\u044f\u043d\u043d\u043e\u0433\u043e \u0445\u0440\u0430\u043d\u0438\u043b\u0438\u0449\u0430 \u043c\u043e\u0433\u043b\u0430 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u0442\u044c \u043a\u0430\u0440\u0442\u0440\u0438\u0434\u0436\u0438, \u043e\u0431\u044a\u0451\u043c\u043e\u043c \u0434\u043e 6 \u041c\u0411. \u0423\u0441\u0442\u0440\u043e\u0439\u0441\u0442\u0432\u043e \u0431\u044b\u043b\u043e \u043e\u0441\u043d\u0430\u0449\u0435\u043d\u043e \u0434\u0432\u0443\u043c\u044f \u0441\u043e\u043f\u0440\u043e\u0446\u0435\u0441\u0441\u043e\u0440\u0430\u043c\u0438: Tom (GPU c […]<\/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\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 a fost lansat pe consola de jocuri Atari Jaguar | ProHoster","description":"Dup\u0103 portarea Linux pe Sega MegaDrive, a fost implementat\u0103 posibilitatea de a rula nucleul Linux cu un set de utilitare Busybox pe consola de jocuri Atari Jaguar, lansat\u0103 \u00een 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\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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