{"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\/es\/blog\/news\/linux-zapushhen-na-igrovoj-pristavke-atari-jaguar","title":{"rendered":"Linux se ha ejecutado en la consola de juegos Atari Jaguar","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<p>Despu\u00e9s de portar Linux a Sega MegaDrive, se implement\u00f3 la posibilidad de ejecutar el n\u00facleo de Linux con el conjunto de utilidades Busybox en la consola de videojuegos Atari Jaguar, lanzada en 1993. La consola ven\u00eda equipada con un CPU Motorola 68000, contaba con 2 MB de RAM y como almacenamiento permanente pod\u00eda utilizar cartuchos de hasta 6 MB. El dispositivo estaba equipado con dos coprocesadores: Tom (GPU con arquitectura RISC de 32 bits + procesador de video de 64 bits + procesador de 64 bits para operaciones l\u00f3gicas) y Jerry (DSP con arquitectura RISC de 32 bits para manejar sonido).      <\/p>\n<p>De manera an\u00e1loga al puerto para Sega MegaDrive para ejecutar el n\u00facleo de Linux en la CPU Motorola 68000, que no tiene un m\u00f3dulo de gesti\u00f3n de memoria (MMU), el n\u00facleo predeterminado 7.2.0-rc1 se compuso en el modo \"NOMMU\" utilizado para microcontroladores, lo que permite usar un modelo de memoria plana con un espacio de direcciones lineal (anteriormente, los desarrollos para operar sin MMU se desarrollaron en un fork del n\u00facleo uClinux, pero luego fueron aceptados en la versi\u00f3n principal del n\u00facleo en forma de la opci\u00f3n \"NOMMU\"). El problema de la falta de memoria RAM se resolvi\u00f3 de manera diferente, a trav\u00e9s de la utilizaci\u00f3n del mecanismo ejecutar-en-sitio (XIP), que permite ejecutar directamente el c\u00f3digo del n\u00facleo desde la ROM sin copiarlo en la memoria RAM.    <\/p>\n<p>La RAM en el dispositivo se refleja en la direcci\u00f3n 0x000000, y la ROM (cartucho) \u2014 en la direcci\u00f3n 0x80000; correspondientes a los componentes del n\u00facleo de Linux se dividieron en dos \u00e1reas de memoria separadas: las secciones .rodata y .text con constantes y c\u00f3digo se ubicaron en el cartucho, mientras que las secciones .data y .bss con datos modificables se colocaron en la memoria RAM. Dado que la CPU 68000 busca la tabla de vectores de interrupci\u00f3n en la direcci\u00f3n 0x0, y el n\u00facleo se ubica efectivamente en el cartucho, cuyo contenido se refleja en la direcci\u00f3n 0x80000, se aplic\u00f3 adicionalmente un hack que copia los vectores de interrupci\u00f3n a la RAM.        <\/p>\n<p>El problema de la falta de un temporizador en el CPU Motorola 68000 se resolvi\u00f3 utilizando los temporizadores usados en el DSP para la s\u00edntesis de sonido. Estos temporizadores se utilizaron para generar interrupciones para activar el planificador de tareas. Para mostrar mensajes del n\u00facleo durante el arranque, se escribi\u00f3 un controlador de consola separado que realizaba la salida simulando un puerto paralelo a trav\u00e9s de las salidas TXD y RXD, controladas a trav\u00e9s del procesador DSP.       <\/p>\n<p>Para compilar los componentes del espacio de usuario se utiliz\u00f3 la herramienta Buildroot con parches del proyecto LinuxMD. Para ahorrar memoria, durante la inicializaci\u00f3n se llam\u00f3 directamente al shell \"\\\/bin\\\/busybox sh\", la funci\u00f3n malloc en la biblioteca uClibc se reemplaz\u00f3 por una versi\u00f3n simplificada malloc-simple, que no conserva metadatos adicionales, y en lugar de un cargador completo, como U-Boot, se realiz\u00f3 una transferencia directa de control al n\u00facleo con el comando \"jmp $80000.\"                          <center><img decoding=\"async\" src=\"\/wp-content\/uploads\/2026\/07\/2e7083644cdd22d754c688d0070aa99d.png\" style=\"display:block;margin: 0 auto;\" \/><\/center><br \/>\n<br \/>Fuente: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/www.opennet.ru\/opennews\/art.shtml?num=65866\">opennet.ru<\/a> <\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\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 [&hellip;]<\/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<!-- All in One SEO 5.0.2 - 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