Linux Certif

Toute la documentation sur la certification Linux LPI

outb

̾Á°

outb, outw, outl, outsb, outsw, outsl, inb, inw, inl, insb, insw, insl, outb_p, outw_p, outl_p, inb_p, inw_p, inl_p - ¥Ý¡¼¥ÈÆþ½ÐÎÏ

ÀâÌÀ

¤³¤Î°ìÏ¢¤Î´Ø¿ô¤Ï¥Ý¡¼¥È¤ËÂФ¹¤ëÄã¥ì¥Ù¥ë¤ÎÆþ½ÐÎϤ˻ÈÍѤ¹¤ë¡£ out* ´Ø¿ô¤Ï¥Ý¡¼¥È½ÐÎÏ¡¢in* ´Ø¿ô¤Ï¥Ý¡¼¥ÈÆþÎϤò¹Ô¤¦¡£ ¸ìÈø¤Ë b ¤¬¤Ä¤¤¤Æ¤¤¤ë´Ø¿ô¤Ï¥Ð¥¤¥Èñ°Ì¡¢w ¤¬¤Ä¤¤¤Æ¤¤¤ë´Ø¿ô¤Ï¥ï¡¼¥Éñ°Ì¤Ç¤¢¤ë¡£ _p ¤¬¤Ä¤¤¤Æ¤¤¤ë´Ø¿ô¤Ï I/O ¤¬½ªÎ»¤¹¤ë¤Þ¤ÇÂԤġ£

¤³¤ì¤é¤Î´Ø¿ô¤Ï¤â¤È¤â¤È¥«¡¼¥Í¥ëÆâÉô¤Ç¤Î»ÈÍѤòÁÛÄꤷ¤ÆÀ߷פµ¤ì¤Æ¤¤¤ë¤¬¡¢ ¥æ¡¼¥¶¡¼¶õ´Ö¤«¤é¤Ç¤â»ÈÍѤǤ­¤ë¡£

-O ¤ä -O2 ¤Ê¤É¤ò»ØÄꤷ¤Æ¥³¥ó¥Ñ¥¤¥ë¤¹¤ë¤³¤È¡£ ¤³¤ì¤é¤Î´Ø¿ô¤Ï¥¤¥ó¥é¥¤¥ó¡¦¥Þ¥¯¥í¤È¤·¤ÆÄêµÁ¤µ¤ì¤Æ¤ª¤ê¡¢ ºÇŬ²½¤ò¹Ô¤ï¤Ê¤¤¤È´Ø¿ô¤ÎŸ³«¤¬¹Ô¤ï¤ì¤º¡¢ ¥ê¥ó¥¯¤Î»þ¤Ë¡Ö²ò·è¤Ç¤­¤Ê¤¤»²¾È(unresolved reference)¡×¤¬È¯À¸¤¹¤ë¡£

¥æ¡¼¥¶¡¼¶õ´Ö¤Î¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤¬ I/O ¥Ý¡¼¥È¤Ë¥¢¥¯¥»¥¹¤¹¤ë¤³¤È¤ò ¥«¡¼¥Í¥ë¤Ë¶µ¤¨¤ë¤¿¤á¤Ë ioperm(2) ¤â¤·¤¯¤Ï iopl(2) ¤ò»ÈÍѤ¹¤ë¤³¤È¡£¤³¤ì¤ò˺¤ì¤ë¤È¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ï¥»¥°¥á¥ó¥Æ¡¼¥·¥ç¥ó°ãÈ¿ (segmentation fault) ¤ò¼õ¤±¤È¤ë¤³¤È¤Ë¤Ê¤ë¡£

½àµò

outb() ¤È¤½¤ÎÃç´Ö¤Ï¥Ï¡¼¥É¥¦¥§¥¢ÆÃÍ­¤Ç¤¢¤ë¡£ value °ú¿ô¤¬ºÇ½é¤ËÅϤµ¤ì¡¢ port °ú¿ô¤¬ÆóÈÖÌܤËÅϤµ¤ì¤ë¡£ ¤³¤Î½ç½ø¤Ï¤Û¤È¤ó¤É¤Î DOS ¤Ç¤Î¼ÂÁõ¤È¤ÏµÕ¤Ç¤¢¤ë¡£

´ØÏ¢¹àÌÜ

ioperm(2), iopl(2)