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/* [¥ê¥¹¥È1] ¶ë·ÁÇȤò½ÐÎϤ¹¤ë */
/* R8C/15¥Þ¥¤¥³¥óÍÑ */
void main(void);
void main()
{
p1 = 0x40; /* P1_6='H', ¤½¤ì°Ê³°P1¤Ï'L' */
pd1 = 0xd4; /* P1_7, P1_6, P1_4, P1_2¤Ï½ÐÎÏ */
while( 1 )
{ /* ¤Þ¤ºCPU¤Î³Îǧ (P1_6¤Ë¶ë·ÁÇȤ¬¤Ç¤ì¤ÐOK) */
p1 = 0x40; /* P1_6=H CPU¤¬Æ°ºî¤·¤Æ¤¤¤ë¤«³Îǧ */
P1 = 0; /* P1_6=L */
} /* ¤³¤Î¥×¥í¥°¥é¥à¤Ï±Ê±ó¤Ë½ªÎ»¤·¤Ê¤¤ */
} /* OS¤ò»ÈÍѤ·¤Ê¤¤¤Î¤Ç¤¢¤ì¤Ðmain¤Ï½ªÎ»¤µ¤»¤Ê¤¤ */
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/* [¥ê¥¹¥È4] ¥ê¥Æ¥é¥ë¤ÎÎã¡¢·Ñ³¹Ô */
char *msg, *ps;
int i, c;
i = 3; /* ¿ô»ú¤Î¥ê¥Æ¥é¥ë3¤ò»ÈÍѤ¹¤ë */
c = 'M'; /* M¤ÎASCII¥³¡¼¥É¤òÂåÆþ */
ps = "abc"; /* ñ½ã¤Êʸ»úÎó¥ê¥Æ¥é¥ë */
msg = "¤³¤ì¤ÏÊ£¿ô¤Î¹Ô¤Ë¤ï¤¿¤ëŤ¤Ê¸»úÎó¤ò"\
"2¹Ô¤Ë¤ï¤¿¤êµ½Ò¤·¤¿¤â¤Î¤Ç¤¹¡£";
/* [¥ê¥¹¥È5] ¥¨¥¹¥±¡¼¥×¡¦¥·¡¼¥±¥ó¥¹¤ÎÎã */
char c;
char *msg;
c = '\a'; /* ʸ»ú¤ËŬÍѤ¹¤ë¾ì¹ç (¥Ö¥¶¡¼¤òÌĤ餹) */
msg = "abc\r\n"; /* ʸ»úÎó¤ËŬÍѤ¹¤ë¾ì¹ç (CR,LF¤òÄɲÃ) */
| \a | ¥Ù¥ë(¥Ö¥¶¡¼)¤òÌĤ餹 |
| \b | ¥Ð¥Ã¥¯¥¹¥Ú¡¼¥¹ |
| \f | ¥Õ¥©¡¼¥à¥Õ¥£¡¼¥É |
| \n | ²þ¹Ô(LF) |
| \r | Éüµ¢(CR) |
| \t | ¿åÊ¿¥¿¥Ö(TAB) |
| \v | ¿âľ¥¿¥Ö |
| \' | ¥¯¥©¡¼¥Æ¡¼¥·¥ç¥ó(°ì½Å°úÍÑÉä) |
| \" | ¥À¥Ö¥ë¥¯¥©¡¼¥Æ¡¼¥·¥ç¥ó(Æó½Å°úÍÑÉä) |
| \? | µ¿ÌäÉä |
| \\ | ±ßµ¹æ |
| \0¡Á | 8¿Ê¤Ç³Èĥɽµ |
| \0x¡Á | 16¿Ê¤Ç³Èĥɽµ |
´Êά½ñ¼°:
[µ²±¥¯¥é¥¹»ØÄê»Ò] ¥¿¥¤¥× ¼±ÊÌ»Ò [= ½é´üÃÍ] [,¼±ÊÌ»Ò [= ½é´üÃÍ]]...;
[]¤Ï¾Êά²Äǽ¤òɽ¤·¤Þ¤¹¡£¡¡...¤Ï·«¤êÊÖ¤·²Äǽ¤ò¤¢¤é¤ï¤·¤Þ¤¹¡£¡¡
µ²±¥¯¥é¥¹»ØÄê»Ò¤Ïauto,register,static,extern¤Î¤¤¤º¤ì¤«
Á´¤Æ¤Î{}¤Î³°¤ÇÊÑ¿ô¤òÄêµÁ¤¹¤ë¤Èµ²±¥¯¥é¥¹¤Îµ¬ÄêÃͤÏextern(¥°¥í¡¼¥Ð¥ëÊÑ¿ô)¤Ë¤Ê¤ê¤Þ¤¹¡£¡¡
´Ø¿ô¤Î{}¤ÎÃæ¤ÇÊÑ¿ô¤òÄêµÁ¤¹¤ë¤Èµ²±¥¯¥é¥¹¤Îµ¬ÄêÃͤÏauto(¥í¡¼¥«¥ëÊÑ¿ô)¤Ë¤Ê¤ê¤Þ¤¹¡£¡¡
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/* [¥ê¥¹¥È6] ÊÑ¿ô¤ÎÄêµÁ */
char c; /* ʸ»ú */
int i; /* À°¿ô */
long x; /* ¹âÀºÅÙÀ°¿ô */
float a; /* ÉâÆ°¾®¿ôÅÀ */
unsigned int ja = 200, jb=100; /* ½é´üÃͤ¢¤ê¤Î¾ì¹ç */
| char | É乿ÉÕ Ê¸»ú |
| unsigned char | É乿¤Ê¤· ʸ»ú |
| short | É乿ÉÕ Ã»À°¿ô (int¤ÈƱ¤¸¤«¾®¤µ¤ÊÃͤ·¤«Êݸ¤Ç¤¤Ê¤¤) |
| unsigned short | É乿¤Ê¤· ûÀ°¿ô |
| int | É乿ÉÕ À°¿ô |
| unsigned int | É乿¤Ê¤· À°¿ô |
| long | É乿ÉÕ Ä¹À°¿ô (int¤ÈƱ¤¸¤«¤è¤êÂ礤ÊÃͤòÊݸ¤Ç¤¤ë) |
| unsigned long | É乿¤Ê¤· ĹÀ°¿ô |
| float | ÉâÆ°¾®¿ôÅÀ |
| double | ÇÜÀºÅÙ ÉâÆ°¾®¿ôÅÀ (float¤ÈƱ¤¸¤«¤è¤ê¹¤¤ÈϰϤÎÃͤòÊݸ¤Ç¤¤ë) |
unsigned¤òÉÕ¤±¤ë¤ÈÉ乿¤Ê¤·¡¢ÉÕ¤±¤Ê¤¤¤ÈÉ乿¤¢¤ê¤Ë¤Ê¤ê¤Þ¤¹¡£¡¡ É乿¤¢¤ê¤Ç¤¢¤ë¤³¤È¤òÌÀ³Î¤Ë¤·¤¿¤¤¾ì¹ç¤Ïsigned¤òÉÕ¤±¤ë¤³¤È¤â²Äǽ¤Ç¤¹¤¬ ¤¢¤Þ¤êÍøÍѤµ¤ì¤Þ¤»¤ó¡£¡¡ É乿¤Ê¤·¤ÎÀ°¿ô¤Ï0¤ÈÀµ¤ÎÀ°¿ô¤ò³ÊǼ¤¹¤ë¤³¤È¤¬¤Ç¤¤Þ¤¹¡£¡¡ ºÇÂ礤¤¯¤Ä¤Þ¤Ç³ÊǼ²Äǽ¤«¤ÏC¥³¥ó¥Ñ¥¤¥é¤Ë¤è¤Ã¤Æ°Û¤Ê¤ê¤Þ¤¹¤Î¤Ç C¥³¥ó¥Ñ¥¤¥é¤Î¥Þ¥Ë¥å¥¢¥ë¤ò³Îǧ¤¹¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£¡¡
ʸ»úÎ󷿤ȸÀ¤¦·¿¤Ï¤¢¤ê¤Þ¤»¤ó¡£¡¡ ʸ»úÎó¤òÊÑ¿ô¤Ë³ÊǼ¤·¤¿¤¤¾ì¹ç¤Ïchar¤Î ÇÛÎó¡¢(¤Þ¤¿¤Ïwchar_t¤ÎÇÛÎó; ¤¿¤À¤·¥ë¥Í¥µ¥¹¤ÎC¥³¥ó¥Ñ¥¤¥é¤ÏÂбþ¤·¤Æ¤¤¤Ê¤¤)¤ò»ÈÍѤ·¤Þ¤¹¡£¡¡ ʸ»úÎó¤Î¥³¥Ô¡¼¤Ë¤ÏÂåÆþ±é»»»Ò¤Ç¤Ï¤Ê¤¯¡¢´Ø¿ô¤ò»ÈÍѤ¹¤ë¤³¤È¤ËÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£¡¡ ÇÛÎó¤Î¥µ¥¤¥º¤Ï0¤ò³ÊǼ¤¹¤ë¤¿¤á¡¢Ê¸»ú¿ô¤è¤ê¤â1¥Ð¥¤¥È;ʬ¤ËɬÍפǤ¹¡£¡¡
[Ãí°ÕÅÀ] ³ÊǼ¤Ç¤¤ëÈϰϤòͤ¨¤¿¿ôÃͤòÊÑ¿ô¤Ë³ÊǼ¤·¤è¤¦¤·¤¿»þ¤Ë¤Ï¡¢ ¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤Ï¤Ç¤Þ¤»¤ó¡£¡¡ (BASIC¥¤¥ó¥¿¥×¥ê¥¿¤ÏưŪ¤Ë¥Á¥§¥Ã¥¯¤·¤Æ¤¤¤ë¤Î¤ËÂФ·¡¢C¸À¸ì¤Ç¤Ï¥Î¡¼¥Á¥§¥Ã¥¯¤Ç¤¹¡£)¡¡ ¥ª¡¼¥Ð¡¼¥Õ¥í¡¼¤¹¤ë²ÄǽÀ¤Î¤¢¤ë»þ¤Ï¡¢±é»»·ë²Ì¤ò¤¹¤ëÁ°¤Ë¥ª¡¼¥Ð¡¼¥Õ¥í¡¼¤·¤Ê¤¤¤³¤È¤ò¥Á¥§¥Ã¥¯¤¹¤ë¥×¥í¥°¥é¥à¡¢¤¢¤ë¤¤¤ÏÆþÎϥǡ¼¥¿¤ÎºÇÂçÃͤòÀ©¸Â¤¹¤ë¥ê¥ß¥Ã¥¿¡¼¥×¥í¥°¥é¥à ¤òÄɲ乤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£
/* [¥ê¥¹¥È7] ÊÑ¿ô¤ÎÄêµÁ(ʸ»úÎó) */
char msg[20] = {"¥µ¥ó¥×¥ëʸ»úÎó"}; /* ºÇÄã15¥Ð¥¤¥ÈɬÍ× */
/* msg¤È¸À¤¦ char·¿¤ÎÇÛÎó¤òºî¤ê¡¢½é´üÃͤò¡Ö¥µ¥ó¥×¥ëʸ»úÎó¡×¤È¤¹¤ë¡£ */
const¤ò
ÉÕ¤±¤ë¤³¤È¤ÇÊÑ¿ô¤òÄê¿ô¤È¤·¤Æ»ÈÍѤǤ¤Þ¤¹¡£¡¡
Äê¿ô¤Î´Êά½ñ¼°:
const ¥¿¥¤¥× Äê¿ô¤Î̾Á° = Äê¿ô¤ÎÃÍ;
¥Þ¥¯¥í¤Î½ñ¼°:
#define ¥Þ¥¯¥í¤Î̾Á° ¥Þ¥¯¥í¤ÎÃÍ
1¤Ä¤Î¥Þ¥¯¥í¤òÊ£¿ô¹Ô¤Ë¤ï¤¿¤Ã¤Æ½ñ¤¤¿¤¤¾ì¹ç¤Ï\(·Ñ³¹Ô)¤ò»ÈÍѤ·¤Þ¤¹¡£¡¡
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/* [¥ê¥¹¥È8] ¥Þ¥¯¥í¤ÈÄê¿ô¤ÎÄêµÁ */
define ABC 123 /* ¥Þ¥¯¥í */
const char c = 'M'; /* ʸ»ú */
const int i = 2; /* À°¿ô */
const long x = 3000L; /* ¹âÀºÅÙÀ°¿ô */
const float a = 3.14; /* ÉâÆ°¾®¿ôÅÀ */
/* [¥ê¥¹¥È9] IO¤ËÂФ·¤Æ¥¢¥¯¥»¥¹¤¹¤ë */
#define P1 (*(volatile unsigned char*)0xe1) /* ¥Ý¡¼¥ÈP1 ¥ì¥¸¥¹¥¿ */
P1 = 0xff; /* IO¤ËÂФ·¤Æ0xff¤ò½ñ¤¹þ¤à */
¡Ö16¿Ê¤ÇE1¤ÎÀ°¿ô¤ò ºÇŬ²½¤¬¶Ø»ß¤µ¤ì¤¿¥¢¥É¥ì¥¹¤È²ò¼á¤·¡¢unsigned char·¿¤ò»Ø¤¹¥Ý¥¤¥ó¥¿¤òÁÛÄꤹ¤ë¡£¡¡ ¤½¤Î¥Ý¥¤¥ó¥¿¤Î»Ø¤·¼¨¤¹¼ÂÂΤòP1¤È¸À¤¦¥Þ¥¯¥í¤È¤·¤ÆÄêµÁ¤¹¤ë¡£¡¡¡× ¤È¸À¤¦¤Õ¤¦¤ËÆÉ¤ß¤Þ¤¹¡£¡¡ ¤Ê¤«¤Ê¤«Æñ¤·¤¤¤Î¤Ç¤¹¤¬IO¤òÄêµÁ¤¹¤ë¾ì¹ç¤Î¤ª¤Þ¤¸¤Ê¤¤ ¤È¤·¤Æ´Ý°Åµ¤·¤Æ¤·¤Þ¤¨¤Ð¤¤¤¤¤È»×¤¤¤Þ¤¹¡£¡¡ À°¿ô¤ò¥¥ã¥¹¥È¤·¤Æ¥Ý¥¤¥ó¥¿¤ËÊÑ´¹¤·¤¿¾ì¹ç¡¢CPU¥¢¥É¥ì¥¹¤Ë ¤½¤Î¤Þ¤ÞÂбþ¤¹¤ë¤«¤É¤¦¤«¤ÏC¥³¥ó¥Ñ¥¤¥é¡¢CPU¤Î¼ïÎà¤Ë¤è¤Ã¤Æ°Û¤Ê¤ê¤Þ¤¹¡£¡¡
C¸À¸ì¤Ç¤Ï¥µ¥¤¥º¤ÎÂ礤ʹ½Â¤ÂΤäÇÛÎó¤Ê¤É¤ò¤ä¤ê¤È¤ê¤¹¤ë¾ì¹ç¤Ë ¤½¤ÎÃͤòľÀÜÅϤ¹¤Î¤Ç¤Ï¤Ê¤¯¥Ý¥¤¥ó¥¿¤ÇÅϤ·¤Þ¤¹¡£¡¡ ½é¤á¤ÆC¤ò³Ø½¬¤µ¤ì¤ëÊý¤ÏÆñ¤·¤¤¤È¤¤¤ï¤ì¤ëÉôʬ¤Ç¤¹¤¬¡¢¥Ï¡¼¥É¤ÎÀ߷פò À¸¶È¤È¤·¤Æ¤¤¤ë¿Í´Ö¤Ë¤Ï¥¢¥É¥ì¥¹¤òÃê¾Ý²½¤·¤¿¤â¤Î¤È¤¤¤¨¤Ð¤Ê¤ó¤È¤Ê¤¯¤ï¤«¤ë¤Î¤Ç¤Ï ¤Ê¤¤¤Ç¤·¤ç¤¦¤«?¡¡
°ìÈÌŪ¤ÊCPU¤Ç¥¢¥É¥ì¥¹¤Ï1byte(8bit)Ëè¤Ë³ä¤ê¿¶¤é¤ì¤¿ÈÖÃÏ(ÈÖ¹æ)¤Çɽ¸½¤µ¤ì¤Þ¤¹¡£¡¡ ¤½¤ì¤ËÂФ·¤Æ¥Ý¥¤¥ó¥¿¤Ï¥¢¥É¥ì¥¹¶õ´Ö¤Î¤É¤³¤«¤ò»Ø¤·¼¨¤¹¤È¸À¤¦°ÕÌ£¤Ç¤Ï¥¢¥É¥ì¥¹¤È Ʊ¤¸¤Ç¤¹¤¬¡¢¤½¤ÎÈÖÃϤϱ£Êäµ¤ì¤Æ¤¤¤Þ¤¹¡£¡¡ C¸À¸ì¤ÏCPU¤¬ÊѤï¤Ã¤Æ¤â¡¢¥½¡¼¥¹¥Õ¥¡¥¤¥ë¤òÊѹ¹¤·¤Ê¤¯¤Æ¤âºÑ¤à¤è¤¦¤Ë¤¹¤ë¤¿¤á¤Ë¤½¤Î¤è¤¦¤Ê»ÅÁȤߤ¬¤¢¤ê¤Þ¤¹¡£¡¡
¤½¤ÎCPU¤¬°ìÈÖ°·¤¤¤ä¤¹¤¤¥Ç¡¼¥¿¥µ¥¤¥º¤Ç¤¢¤ëint¤ÏCPU¤Ë¤è¤Ã¤Æ 2¥Ð¥¤¥È¤Î¾ì¹ç¤â ¤¢¤ê¤Þ¤¹¤· 4¥Ð¥¤¥È¤Î¾ì¹ç¡¢¤½¤ì°Ê³°¤Î¾ì¹ç¤â¤¢¤ê¤Þ¤¹¡£¡¡ int¤ÎÇÛÎó¤òÄêµÁ¤·¤¿ºÝ¤Ë¡¢1¤Ä¤ÎÍ×ÁǤ¬²¿¥Ð¥¤¥È¤òÀê¤á¤ë¤«¤Ï¡¢CPU¤Ë¤è¤ê°Û¤Ê¤ê¤Þ¤¹¡£¡¡ ÇÛÎó¤Î¼¡¤ÎÍ×ÁÇ¤Ë°ÜÆ°¤¹¤ë¥×¥í¥°¥é¥à¤ò½ñ¤¤¤¿¤È¤·¤Æ¡¢CPU¤Î¼ïÎàËè¤Ë¥½¡¼¥¹¥Õ¥¡¥¤¥ë¤ò½ñ¤´¹¤¨¤Ê¤±¤ì¤Ð¤Ê¤é¤¤¤Î¤Ç¤Ï¡¢°Ü¿¢À¤ËÌäÂ꤬¤¢¤ê¤Þ¤¹¡£¡¡ ¤è¤Ã¤Æ¥¤¥ó¥¯¥ê¥á¥ó¥È»þ¡¢¥Ý¥¤¥ó¥¿¤¬Í×ÁÇ1¤Äʬ¤À¤±¤º¤ì¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤Þ¤¹¡£¡¡
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/* [¥ê¥¹¥È10] ¥Ý¥¤¥ó¥¿¤Î»ÈÍÑÎã */
int a, *pa; /* ¤³¤³¤Ç¤Ï¥Ý¥¤¥ó¥¿pa¤Ï¤È¤ó¤Ç¤â̵¤¤¾ì½ê¤ò»Ø¤·¤Æ¤¤¤ë */
long b, *pb; /* ¤³¤³¤Ç¤Ï¥Ý¥¤¥ó¥¿pb¤Ï¤È¤ó¤Ç¤â̵¤¤¾ì½ê¤ò»Ø¤·¤Æ¤¤¤ë */
int *p2;
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À*/
void main()
{
pa = &a; /* ¤³¤³¤Ç½é¤á¤Æpa¤¬a¤Î¤¢¤ë¾ì½ê¤ò¼¨¤¹¤è¤¦¤Ë¤Ê¤ë */
pb = &b; /* ¤³¤³¤Ç½é¤á¤Æpb¤¬b¤Î¤¢¤ë¾ì½ê¤ò¼¨¤¹¤è¤¦¤Ë¤Ê¤ë */
a = 3; b = 2L;
/* pa = pb; NG!! ·¿¤Î°ã¤¦¥Ý¥¤¥ó¥¿¤ÏÂåÆþ¤Ç¤¤Ê¤¤ */
p2 = pb; /* ¥Ý¥¤¥ó¥¿¤ÏÂåÆþ¤â¤Ç¤¤ë¡£ pa,p2¶¦¤Ëb¤Î¾ì½ê¤ò¼¨¤¹ */
*pa = 0; /* a = 0; ¤ÈƱ¤¸ */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
void¥Ý¥¤¥ó¥¿¤Ï¡¢»Ø¤·¼¨¤¹¥ª¥Ö¥¸¥§¥¯¥È(ÊÑ¿ô¤ä´Ø¿ô)¤Î·¿¤¬Ì¤Äê¤Î¥Ý¥¤¥ó¥¿¤Ç¤¹¡£¡¡ malloc¤Ê¤É¤Î¥á¥â¥ê¡¼¤ò³ÎÊݤ¹¤ë´Ø¿ô¡¢¤¢¤ë¤¤¤Ï1¤Ä¤Î¥Ý¥¤¥ó¥¿¤òÊ£¿ô¤Î°Û¤Ê¤ë¥¿¥¤¥×¤ËήÍѤ·¤¿¤¤»þ¤Ë»ÈÍѤ·¤Þ¤¹¡£¡¡
¼ÂºÝ¤Ë¥Ý¥¤¥ó¥¿¤¬»Ø¤·¤Æ¤¤¤ë¥ª¥Ö¥¸¥§¥¯¥È¤ËÂФ·¤ÆÆÉ¤ß½ñ¤¤ò¤¹¤ë¾ì¹ç¤Ï¡¢¤Ê¤Ë·¿¤Î¥Ý¥¤¥ó¥¿¤Ê¤Î¤«·¿¤òÌÀ³Î¤Ë¤¹¤ë¤¿¤á¥¥ã¥¹¥È¤¬É¬¿Ü¤Ç¤¹¡£¡¡ void¥Ý¥¤¥ó¥¿¤È¤Ï¤Þ¤À¤Ê¤Ë·¿¤Î¥Ý¥¤¥ó¥¿¤È¤·¤Æ»ÈÍѤ¹¤ë¤«·è¤á¤Æ¤¤¤Ê¤¤¤È¤¤¤¦°ÕÌ£¤Ç¤¢¤Ã¤Æ¡¢»ÈÍÑľÁ°¤Ë¤Ï·è¤á¤Ê¤±¤ì¤Ð¤È¤¤¤¦¤³¤È¤Ç¤¹¡£¡¡
/* [¥ê¥¹¥È12] ¥á¥â¥ê¡¼¤Î³ÎÊݤȳ«Êü¤ò¤¹¤ë */
#include <stdlib.h>
char *buf; /* char·¿¤Î¥Ý¥¤¥ó¥¿buf¤ÎÄêµÁ */
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
void main()
{
/* malloc¤Ï¥á¥â¥ê¡¼¤ò³ÎÊݤ·¤Ævoid¥Ý¥¤¥ó¥¿¤òÊÖ¤¹ */
buf = (char*)malloc(1024); /* ¤³¤³¤Çvoid·¿¥Ý¥¤¥ó¥¿¤òchar¥Ý¥¤¥ó¥¿¤ËÊÑ´¹ */
*buf = 5; /* buf¤Î»Ø¤¹¾ì½ê¤Ë½ñ¤¹þ¤ß */
free( buf ); /* ¥á¥â¥ê¡¼¤Î²òÊü*/
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
C¸À¸ì¤ÏÇÛÎó¤Îꤍ»ú¤ÎÃͤò¼«Æ°Åª¤Ë¥Á¥§¥Ã¥¯¤·¤Þ¤»¤ó¡£¡¡ array_a[3]¤ÈÄêµÁ¤·¤¿¾ì¹ç¤Ïꤍ»ú([]¤ÎÃæ¤Î¿ô»ú)¤ÎÈϰϤÏ0¡Á2¤Þ¤Ç¤Ç¤¹¡£¡¡ (ꤍ»ú¤Ï0¤«¤é»Ï¤á¤ë»ö¤ËÃí°Õ)¡¡ ꤍ»ú¤ÎÃͤòÉé¤ÎÃÍ¡¢¤¢¤ë¤¤¤Ï3°Ê¾å¤Ç½ñ¤¹þ¤ß¤ò¤·¤Æ¤·¤Þ¤Ã¤¿¾ì¹ç¤Ï¡¢Í½Â¬ÉÔ²Äǽ¤Ê¥¢¥É¥ì¥¹Îΰè¤ò½ñ¤´¹¤¨¤Æ¤·¤Þ¤¤¡¢CPU˽Áö¤Î´í¸±¤¬¤¢¤ê¤Þ¤¹¡£¡¡
/* [¥ê¥¹¥È13] ÇÛÎó¤Î»ÈÍÑÎã */
int array_a[3]; /* ÇÛÎó¤ÎÄêµÁ Í×ÁǤÏ3¸Ä */
char array_b[4]; /* Í×ÁǤÏ4¸Ä (ꤍ»ú¤Ï0¡Á3) */
array_a[0] = 25; /* ÇÛÎó¤Î»Ï¤á¤ÎÍ×ÁǤËÂåÆþ */
/* array_b[4] = 2; NG! (¥¨¥é¡¼¥á¥Ã¥»¡¼¥¸¤Ï½Ð¤Ê¤¤) */
ÇÛÎó¤ò»Ø¤·¼¨¤¹¥Ý¥¤¥ó¥¿¤ò¥¤¥ó¥¯¥ê¥á¥ó¥È¤¹¤ë¤È¡¢
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/* [¥ê¥¹¥È11] ÇÛÎó¤È¥Ý¥¤¥ó¥¿¤Î»ÈÍÑÎã */
int *pa, *pb; /* ¤³¤³¤Ç¤Ï¥Ý¥¤¥ó¥¿pa¤Ï¤È¤ó¤Ç¤â̵¤¤¾ì½ê¤ò»Ø¤·¤Æ¤¤¤ë */
int my_array[10]; /* int¤ò10¸Ä»ý¤Ä¡¡ÇÛÎó¤òºî¤ë¡£ */
char *pc; /* pc¤Ïchar¤ò»Ø¤·¼¨¤¹¥Ý¥¤¥ó¥¿ */
char my_ch[4]; /* char¤ò4¸Ä»ý¤ÄÇÛÎó(3ʸ»ú¤Þ¤Ç¤Îʸ»úÎó) */
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
void main()
{
pa = my_array; /* Âç³ç¸Ì¤ò³°¤¹¤ÈÇÛÎó¤ÎÀèÆ¬¤ÎÍ×ÁǤξì½ê¤òÊÖ¤¹¡£ */
pb = pa + 5; /* 5¸Äʬ¸å¤í¤Ë¿Ê¤á¤¿¾ì½ê my_array[5]¤ò»Ø¤¹ */
pb--; /* 1¸Ä¤À¤±Ì᤹¡£ pb¤Ïmy_array[4]¤ò»Ø¤¹ */
pc = my_ch;
pc++; /* pc¤Ï1¥Ð¥¤¥È°Üư(char¤Ï1¥Ð¥¤¥È) */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
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-> (´ÖÀÜ¥á¥ó¥Ð±é»»»Ò/Ìð°õ±é»»»Ò)¤ò»ÈÍѤ·¤Þ¤¹¡£
/* [¥ê¥¹¥È14] ¹½Â¤ÂΤλÈÍÑÎã */
struct my_tag
{
int a; /* my_tag¤ÎÍ×ÁÇ a */
char b; /* my_tag¤ÎÍ×ÁÇ b */
long c; /* my_tag¤ÎÍ×ÁÇ c */
}; /* ¹½Â¤ÂΤΥ¿¥°¤òºî¤ë¡£¥»¥ß¥³¥í¥ó¤¬É¬Í× */
void my_func(*struct my_tag); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
void main(void); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
struct my_tag struct_x; /* ¹½Â¤ÂΤμÂÂΤòºî¤ë */
/*²¿¤é¤«¤Î½èÍý*/
struct my_tag struct_y; /* ¥¿¥°¤Ï²¿²ó¤Ç¤â»ÈÍѤǤ¤Þ¤¹ */
void main(void)
{
struct_x.a = -3; /* struct_x¤ÎÍ×ÁÇa¤ËÂåÆþ */
my_func(&struct_y); /* ¹½Â¤ÂΤΥݥ¤¥ó¥¿¤ò´Ø¿ô¤Î°ú¿ô¤Ë¤¹¤ë */
/* struct_y.b¤¬10¤Ë¤Ê¤Ã¤Æ¤¤¤ë¤Ï¤º */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
void my_func( *struct my_tag my_val )
{
my_val->b = 10; /* ¹½Â¤ÂΤΥݥ¤¥ó¥¿¤«¤éÍ×ÁǤò½¦¤¦¾ì¹ç¤Ï->¤ò»ÈÍÑ */
}
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() [] -> . | Í¥Àè½ç°Ì¤Î¤¿¤á¤Î³ç¸Ì, ÇÛÎ󟤨»ú±é»»»Ò, ¹½Â¤ÂΥݥ¤¥ó¥¿±é»»»Ò, ¹½Â¤ÂÎ¥á¥ó¥Ð±é»»»Ò |
! ~ - ++ -- & * |
ÏÀÍýÈÝÄê±é»»»Ò, ¥Ó¥Ã¥ÈÊä¿ô±é»»»Ò, ñ¹à¥Þ¥¤¥Ê¥¹±é»»»Ò, ¥¤¥ó¥¯¥ê¥á¥ó¥È,¥Ç¥£¥¯¥ê¥á¥ó¥È, ¥¢¥É¥ì¥¹±é»»»Ò, ´ÖÀܱ黻»Ò ¥¥ã¥¹¥È, sizeof±é»»»Ò |
* / % | ¾è»»,½ü»»,¾ê; |
+ - | ²Ã»»,¸º»» |
>> << | ±¦¥·¥Õ¥È,º¸¥·¥Õ¥È |
< <== > >= | ´Ø·¸±é»»»Ò |
== != | Åù²Á±é»»»Ò |
& | ¥Ó¥Ã¥È±é»»»Ò AND |
^ | ¥Ó¥Ã¥È±é»»»Ò XOR |
| | ¥Ó¥Ã¥È±é»»»Ò OR |
&& | ÏÀÍýÀÑ |
|| | ÏÀÍýÏÂ |
?: | ¾ò·ï±é»»»Ò |
= *= /= %= += -= &= | ÂåÆþ±é»»»Ò |
, | ¥«¥ó¥Þ±é»»»Ò |
C¸À¸ì¤ÏÈó¾ï¤ËËÉ٤ʱ黻»Ò¤ò¤â¤Ã¤Æ¤¤¤Þ¤¹¤¬Á´¤Æ¤ò°Åµ¤·¤Ê¤¯¤Æ¤âÂç¾æÉפǤ¹¡£¡¡ ¾ò·ï±é»»»Ò,Ê£¹çÂåÆþ±é»»»Ò¤Ï¤Û¤È¤ó¤É»È¤¤¤Þ¤»¤ó¡£¡¡
/* [¥ê¥¹¥È15] ²Ã¸º¾è½ü */
int a;
int b;
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À*/
void main()
{
a = 11 + 20; /* ¡ 11¤È20¤ò²Ã»»¤·¤Æa¤ËÂåÆþ */
b = 9 - 4 * 10; /* ¢ 4¤È10¤ò¾è»»¤¹¤ë¡£ 9¤«¤é¤½¤Î±é»»·ë²Ì¤ò¸º»»¤·¤Æ */
/* ·ë²Ì¤òb¤ËÂåÆþ¤¹¤ë¡£ */
}
C¸À¸ì¤ÇÌÌÇò¤¤ÅÀ¤ÏÂåÆþ¤â±é»»»Ò¤È¤·¤Æ°·¤ï¤ì¤Æ¤¤¤ë¤³¤È¤Ç¤¹¡£¡¡
ÂåÆþ±é»»»Ò¤Ï = ¤Çɽ¤·¡¢Åù¤·¤¤¤«¤É¤¦¤«¤ÎȽÃÇ¤Ï == ¤Çɽ¸½¤·¤Þ¤¹¡£¡¡¤³¤Î¶èÊ̤ϴְ㤨¤ä¤¹¤¤¤Î¤ÇÃí°Õ¤·¤Æ¤¯¤À¤µ¤¤¡£¡¡
Á´¤Æ¤Î¤³¤È¤ò1:¿¿/0:µ¶(YES/NO¤Ç¤âÎɤ¤)¤Ç°·¤¦¤Î¤¬¡ÖÏÀÍý±é»»¡× ÏÀÍý±é»»¤ò°·¤¦±é»»»Ò¤È¤·¤ÆÏÀÍý±é»»»Ò¤¬¤¢¤ê¡¢¾ò·ïʬ´ô¤ä¾ò·ïÉե롼¥×¤Ê¤É¤Ç»ÈÍѤµ¤ì¤Þ¤¹¡£¡¡
/* [¥ê¥¹¥È16] ÏÀÍý±é»»»Ò */
int x=12;
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À*/
void main()
{
if( x>=10 || x>=20 )
{ /* x¤¬10¤«¤é20¤ÎÈϰϤξì¹ç¤Ë¼Â¹Ô */
/* ¿¿¤Î¾ì¹ç¤Ë¼Â¹Ô¤¹¤ë¡¡²¿¤é¤«¤Î½èÍý */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
ÏÀÍý±é»»¤ËÎà»÷¤·¤¿¤â¤Î¤È¤·¤Æ¥Ó¥Ã¥È±é»»¤¬¤¢¤ë¡£ ÏÀÍý±é»»¤Ï¾ï¤Ë1¥Ó¥Ã¥È¤Î±é»»¤ò¹Ô¤¦¤Î¤ËÂФ·¤Æ¡¢¥Ó¥Ã¥È±é»»¤Ï¡¢Ê£¿ô¤Î¥Ó¥Ã¥È¤ËÂФ·¡¢¤Þ¤È¤á¤Æ½èÍý¤ò¹Ô¤¦¡£¡¡
¾¯¤·ÊѤï¤Ã¤¿±é»»»Ò¤È¤·¤Æ¡¢¥¤¥ó¥¯¥ê¥á¥ó¥È¡¢ ¥Ç¥£¥¯¥ê¥á¥ó¥È¤¬¤¢¤ê¤Þ¤¹¡£¡¡ ¥¤¥ó¥¯¥ê¥á¥ó¥È¤È¤Ï1¤ò²Ã»»¤¹¤ë¤³¤È¡£¥Ç¥£¥¯¥ê¥á¥ó¥È¤È¤Ï1¤ò¸º»»¤¹¤ë¤³¤È¤Ç¤¹¤¬¡¢»ÈÍÑÉÑÅÙ¤¬¹â¤¤¤¿¤á¡¢ÀìÍѤα黻»Ò¤¬ÍѰդµ¤ì¤Æ¤¤¤Þ¤¹¡£
/* [¥ê¥¹¥È17] ¥Ó¥Ã¥È±é»»»Ò¡¢¥¤¥ó¥¯¥ê¥á¥ó¥È¡¢¥Ç¥£¥¯¥ê¥á¥ó¥È */
int a, b;
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
void main()
{
a = ((7 & 2) | 256); /* 7¤È2¤ÎAND¤ò¤È¤Ã¤Æ¡¢¤½¤Î·ë²Ì¤ËÂФ·¤Æ256¤òOR¤¹¤ë¡£ */
/* ·ë²Ì¤òa¤ËÂåÆþ (a¤Ï258¤Ë¤Ê¤ë) */
b = (a >> 1); /* a¤ò1 bit±¦¥·¥Õ¥È¤·¤Æ b¤ËÂåÆþ¡£ (b¤Ï129¤Ë¤Ê¤ë) */
a++; /* ¥¤¥ó¥¯¥ê¥á¥ó¥È (a¤Ï259) */
b--; /* ¥Ç¥£¥¯¥ê¥á¥ó¥È (b¤Ï128) */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
C¸À¸ì¤Ç·¿¤Î°Û¤Ê¤ëÊÑ¿ô¡¢Äê¿ô¤ò±é»»¤¹¤ë¾ì¹ç¤Ï·¿¤ò¹ç¤ï¤»¤ëɬÍפ¬¤¢¤ê¤Þ¤¹¡£¡¡ ¤¢¤ëÄøÅÙ¼«Æ°Åª¤ËÊÑ´¹¤¹¤ëµ¡Ç½¤¬¤¢¤ê¤Þ¤¹¤¬ÌÀ¼¨Åª¤ËÊÑ´¹¤·¤Ê¤±¤ì¤Ð ¤Ê¤é¤Ê¤¤¾ì¹ç¤â¤¢¤ê¤Þ¤¹¡£¡¡¤½¤Î¾ì¹ç¤Ë·¿¤òÊÑ´¹¤¹¤ë¤Î¤¬¥¥ã¥¹¥È¤Ç¤¹¡£¡¡
°ìÈÖÎɤ¯»ÈÍѤ¹¤ë¤Î¤¬void¥Ý¥¤¥ó¥¿¤ò»ÈÍѤ¹¤ë¾ì¹ç¤Ç¡¢¼¡¤Ë¿¤¤¤Î¤¬±é»»¤ÎÀºÅÙ¤¬Íî¤Á¤Ê¤¤¤è¤¦¤ËÌÀ¼¨Åª¤ËÊÑ´¹¤¹¤ë¾ì¹ç¤Ç¤¹¡£¡¡ (¥ª¡¼¥Ð¡¼¥Õ¥í¡¼¤ÎËÉ»ß)
/* [¥ê¥¹¥È18] ÌÀ¼¨Åª¤Ê·¿¤ÎÊÑ´¹ */
int a, b;
float x;
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
void main()
{
a = 3; b = 2;
x = (float)a / (float)b; /* a¤Èb¤Î·¿¤ÏƱ¤¸¤À¤¬Àè¤ËÉâÆ°¾®¿ôÅÀ¤Ë */
/* ÊÑ´¹¤·¤Æ¤ª¤«¤Ê¤¤¤ÈÀºÅÙ¤¬Íî¤Á¤ë */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
¸½Âå¤Î¥×¥í¥°¥é¥à¤ÏÂçÉôʬ¤òC¸À¸ì¤Çµ½Ò¤·¤Þ¤¹¤¬¡¢¤Û¤ó¤Î¤ï¤º¤«¤À¤±C¤Î¥½¡¼¥¹¤Î Ãæ¤Ë¥¢¥»¥ó¥Ö¥ê¸À¸ì¤òº®ºß¤µ¤»¤ë¤³¤È¤¬¤Ç¤¤ë¤ÈÊØÍø¤Ê¾ì¹ç¤¬¤¢¤ê¤Þ¤¹¡£¡¡ ¤½¤ì¤ò¼Â¸½¤¹¤ë¤Î¤¬asmÀë¸À¤Ç¤¹¡£¡¡ ¤³¤ì¤Ï¿ÍѤ¹¤ë¤È°Ü¿¢À¤òÄã²¼¤µ¤»¤ë¤Î¤Ç»ÈÍѤϺǾ®¸Â¤Ç¤Ê¤±¤ì¤Ð¤Ê¤ê¤Þ¤»¤ó¡£¡¡ (ANSI Cµ¬³Ê³°)¡¡ ¤Þ¤È¤Þ¤Ã¤¿Ê¬Î̤Υ¢¥»¥ó¥Ö¥ê¸À¸ì¤¬É¬Íפʾì¹ç¤Ï¥¢¥»¥ó¥Ö¥é¤Î¥½¡¼¥¹¤È¤·¤Æ ÆÈΩ¤µ¤»¤¿Êý¤¬¤¤¤¤¤Ç¤·¤ç¤¦¡£¡¡
»ÈÍÑÉÑÅÙ¤¬¹â¤¤¤Î¤Ï¡¢¤¢¤ë¥ì¥¸¥¹¥¿¤È¤¢¤ë¥ì¥¸¥¹¥¿¤Î¥¢¥¯¥»¥¹¤Î´Ö³Ö¤Ë¡¢¤É¤¦¤·¤Æ¤âNOP¤¬É¬Íפʾì¹ç¤È¤«¡¢¤¢¤ëû¤¤´Ö¤À¤±³ä¤ê¹þ¤ß¤ò¶Ø»ß¤·¤¿¤¤¾ì¹ç¤Ç¤¹¡£¡¡ ¥½¡¼¥¹¤Î½ñ¤Êý¤Ï´Ø¿ô¤Ë»÷¤Æ¤¤¤Þ¤¹¤¬Àë¸À¤Ç¤¹¡£¡¡
/* [¥ê¥¹¥È19] ¥¢¥»¥ó¥Ö¥ê¸À¸ì¤òËä¤á¹þ¤à */
void main(); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
void main()
{
asm(" NOP"); /* ¥¢¥»¥ó¥Ö¥ê¸À¸ì NOP ¤òÆþ¤ì¤ë */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
/* [¥ê¥¹¥È20] ¥é¥¤¥Ö¥é¥ê´Ø¿ô¤Î»ÈÍѽàÈ÷ */
#include <string.h> /* ɸ½à¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë */
#include "islib.h"; /* ¼«Ê¬¤Çºî¤Ã¤¿¥¤¥ó¥¯¥ë¡¼¥É¥Õ¥¡¥¤¥ë */
ɸ½à¥é¥¤¥Ö¥é¥ê¤Î¾ì¹ç¤Ï¥³¥ó¥Ñ¥¤¥é¤¬·è¤á¤¿¾ì½ê¤Ë¥Õ¥¡¥¤¥ë¤¬¤¢¤ë¤Î¤Ç
<>¤Ç°Ï¤ß¤Þ¤¹¡£¡¡
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/* [¥ê¥¹¥È21] °ú¿ôÉդΥޥ¯¥í */
/* P16¤ËÀܳ¤·¤¿LED1¤ò¥Þ¥¯¥í¤ÇÀ©¸æ */
#define P1 (*(volatile unsigned char*)0xe1) /* ¥Ý¡¼¥ÈP1 ¥ì¥¸¥¹¥¿ */
#define PD1 (*(volatile unsigned char *)0xe3) /* ¥Ý¡¼¥ÈP1 Êý¸þ¥ì¥¸¥¹¥¿ */
#defien LED1(d) {if((d)!=0) P1=(P1 | 0x40); else P1=(P1 & 0xbf);}
void main(void); /* ¥×¥í¥È¥¿¥¤¥×Àë¸À */
void main()
{
PD1 = 0xd4; /* P1_7, P1_6, P1_4, P1_2¤Ï½ÐÎÏ */
P1 = 0; /* P1¤ò½é´ü²½ */
LED1(1) /* LED1¤ò'H'¤Ë¤¹¤ë */
LED1(0) /* LED1¤ò'L'¤Ë¤¹¤ë */
while(1) ; /* ̵¸Â¥ë¡¼¥× */
}
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