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- ç¥ããŠããŒã.
- æ©æ¢°ãè£ çœ®ãèšåãéšåãšãã£ãç©ççãªæ§æèŠçŽ .
- é»åå·¥åŠç§ãå匷ãããã€.
ð»ããã€ã¹
åšèŸºæ©åš. ã³ã³ãã¥ãŒã¿ããã€ã¹.
- ðãŠã§ã¢ã©ãã«ããã€ã¹
- ðããã€ã¹ãã©ã€ã: ããŒããŠã§ã¢ããœãããŠã§ã¢ããæ±ãã¢ãžã¥ãŒã«.
é»ååè·¯
é»ååè·¯, ã²ãŒã.
è«çã²ãŒã
ããŒã«é¢æ°ãå®çŸããããã®ç©çããã€ã¹. ã²ãŒãããŸãšãããã®ãåè·¯, ããããšãã.
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2 å€ã®ããŒã¿è¡šçŸãé»æ°ã§å®çŸããç©çããã€ã¹. ã¹ã€ããã³ã°æè¡.
é»æ°ã§ããããšãäžã€ã®ãã€ã³ã. å¥ã®ç©çæ§è³ªãçšããŠã²ãŒããäœæããããšãã§ãã.
NAND
ãã£ãšãåºç€çãªè«çã²ãŒã.
ããŒã«è«ç
ãã¹ãŠã®ããŒã«é¢æ°ã¯ NAND NOT ãã€ãã£ãŠè¡šçŸã§ãã. (AND, OR, NOT ) ãå«ã.
- NOT (x) = (x NAND x)
- AND (x, y) = NOT (x NAND y)
- OR (x,y) = NOT (NOT (x) AND NOT (y))
NAND ãå®çŸããç©çããã€ã¹ãèªç±ã«å©çšã§ããã°, ã©ã®ãããªããŒã«é¢æ°ãããŒããŠã§ã¢ãšããŠäœæã§ãã.
ãã«ããã¬ã¯ãµ
ãµãã€ä»¥äžã®å ¥åãã²ãšã€ã®ä¿¡å·ãšããŠåºåããæ©æ§.
ãã«ããã¬ã¯ãµã«ãã£ãŠãããŒãçã« if æãè¡šçŸããããšãã§ãã.
ç®è¡ã²ãŒã
é åºåè·¯
ã²ãšã€ä»¥äžã®ããªããããããåè·¯ãçµã¿èŸŒãŸããŠãããã®.
以äžã®ãããªæ©èœããã€.
- ç¶æ ãä¿ã€
- ç¶æ ãæäœãã
ç¶æ ããããã®ã¯, ã¯ããã¯ã次ã®åšæã«ç§»è¡ãããšã.(c.f. çµã¿åããåè·¯ã¯å³æ)
ããªããããããåè·¯
é åºåè·¯ã®äžã§ãã£ãšãããªããã£ããªãã®. NAND ãšãšãã«, ãã£ãšãããªããã£ããªãã®ãšããŠèãããã.
ããªããããããåè·¯ã®å®è£ æ¹æ³ã¯ãããããã. NAND ããæ§ç¯ããæ¹æ³ããã.
ããã°ã©ã ã«ãŠã³ã¿
è«çç®è¡ã²ãŒã (ALU)
è«çã²ãŒããšç®è¡ã²ãŒããããããŠã²ãšã€ã«ãããã®.CPU ã®äžæ ž.
HDL
Hardware Description Language