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ç·åãããã®ä¸åº¦ã¯èªåã§CPUãä½ã£ã¦ã¿ãããã®ã ãã©ãICã§LEDããã«ãã«ãããç¨åº¦ã®çµé¨ãããªããã¼ãç´ äººãªä¿ºã ã£ãã®ã§ãCPUãèªä½ãã¦ãæ±å¤§çãªã©ãé ãããè¦ã¦æ§ãã¦ãã ãã ã£ããããããããä¸å¹´åã®ãã¨ããMIPSãªãã¦ç°¡åã«ä½ãã¾ããï¼ãã¨Kããï¼âFPGAã§Lispãã·ã³ãèªä½ãããããªäººï¼ã«è¨ããã¦ããããã ãããããKããã¯ããã§ãããããããããããããã¦ä¿ºã«ãã§ããããªããï¼ãã¨æã£ãããã®ä¸è¨ããªããã°32bitã®CPUãèªä½ããããªãã¦èããªãã£ãã ããã ããããä¸å¹´ã¡ãããã¨ãã«ä»å¹´ã®æ£æä¼ã¿ãFPGA温æ³ã§ãã£ã¤ãããã°ã£ã¦ããªãã¨ãMIPS Iãµãã»ããã®èªä½CPUãåãããããã¯ãã£ãããããè¨ç®ãã¦ãã¨ããã ã¡ãªã¿ã«ãããã¯ãããªæãã®ãã£ããããã®ã³ã¼ããCã§æ¸ãã¦ã void main() { int i, *r = (int *)0x7f00
æ´ä»£ã®CPUããæè¡çã»æåçã»çµæ¸çã«å¤§ããªå½±é¿ãä¸ããæ´å²çã¢ãã«11種é¡ãçºè¡¨ããã¦ãã¾ããé«æ§è½ã§ãã¹ãã»ã©ã¼ã«ãªã£ãã¢ãã«ãããä¸ã«ã¯å¿ ãããåæ¥çã«æåãåããã¨ã¯è¨ããªãã¢ãã«ã¾ã§ãæ代ã彩ãåCPU11é¸ã¯ä»¥ä¸ã®éãã§ãã The 11 Most Influential Microprocessors of All Time https://www.pcworld.com/article/525281/influential-processors.html â01ï¼Intel 4004(1971å¹´) Intel 4004ã¯ãIntelã«ãã£ã¦éçºãããCPUã§ããããããã¤ã¯ãããã»ããµã«å½±é¿ãä¸ããã¨è¨ãããæ´å²çãªã¢ãã«ã§ãã4004ã¯å½åãæ¥æ¬ã®ãã¸ã³ã³ç¤¾ã®é»åå°ç¨ã¢ãã«ã¨ãã¦éçºããã¾ãããããã®æ±ç¨æ§ãè¦æããIntelã¯è²©å£²æ¨©ããã¸ã³ã³ããè²·ãåãããã¾ãã¾ãªè£½
ä¸å¿ã¹ããã¯ã CPUã¯Z80A (ã¯ããã¯4MHz) ã ã£ãã¨æããã©ãéä¸ã§B (6MHz) ã«ããããã RAMã¯æçµçã«256KBç©ãã§ãããBIOSã§ãã³ã¯åæ¿ããã¦ã é常ã¯192KBãRAMãã£ã¹ã¯ã¨ãã¦ä½¿ã£ã¦ããããã¨ãã©ã¤ããçµã¿è¾¼ãã 32KBã®ROMã ãã³ã¯åãæ¿ããã¡ã¢ãªæä¸ä½ã®ã¹ã¿ãã«ã¼ãã³ãå¼ã¶ã¨ROMãã³ã¯ã«åãæ¿ã㦠ãã©ã¤ãã«å¶å¾¡ã渡ããã«ã¼ãã«ã¢ã¼ãã¨ã¦ã¼ã¶ã¢ã¼ãã®åãæ¿ãã¿ãããªããã ãã ãã®æ§é ã®ãããã§ãã¦ã¼ã¶RAMã¨ãªã¢ãããªãåºãåããã OSã¯CP/M-80ã ã£ããã©ãå ¨é¨éã¢ã»ã³ãã«ãã¦ä¸èº«ã解æããããªãæ¸ãæãã¦ä½¿ã£ã¦ããã å½æå¦æ ¡ã§Unixã触ãå§ãã¦ããã«æ§ãã¦ããã®ã§ãæ¨æºå ¥åºåã®redirectionã¨ã ãã¤ã(MS-DOSæ代ã®çä¼¼ãã¤ãã)ãªãããã§ããããã«ãã¦ããã FDDã¯5inchã®æ代ã2DDã¨ã2HDã¨ãã
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I started programming twenty year ago coding in machine codes for Intel 8080. This microprocessor was my lucky pass to the fascinating world of bits and bytes. Years later developing various emulators of i8080 and tackling with undocumented and partially documented features of this processor I decided to collect real chips from different manufacturers and examine them using the 8080 CPU Exerciser.
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