{"id":157,"date":"2023-10-22T22:43:25","date_gmt":"2023-10-22T13:43:25","guid":{"rendered":"http:\/\/mession.ddo.jp\/~wakaguri\/wordpress\/?p=157"},"modified":"2023-10-22T22:43:25","modified_gmt":"2023-10-22T13:43:25","slug":"%e7%b5%84%e3%81%bf%e5%90%88%e3%82%8f%e3%81%9b%e5%9b%9e%e8%b7%af-%e3%81%9d%e3%81%ae4-aluarithmetic-logic-unit","status":"publish","type":"post","link":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/?p=157","title":{"rendered":"\u7d44\u307f\u5408\u308f\u305b\u56de\u8def \u305d\u306e4: ALU(Arithmetic Logic Unit)"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<p>\nALU(\u6f14\u7b97\u88c5\u7f6e)\u306fCPU\u3092\u8abf\u3079\u308b\u3068\u5185\u90e8\u69cb\u9020\u306e\u4e00\u90e8\u3068\u3057\u3066\u5fc5\u305a\u767b\u5834\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u8ad6\u7406\u6f14\u7b97\u3084\u7b97\u8853\u8a08\u7b97\u306a\u3069\u3092\u62c5\u3046\u3082\u306e\u3060\u305d\u3046\u3067\u3059\u3002 ALU\u306e\u4e00\u4f8b\u3068\u3057\u306674HC181\u3068\u3044\u3046\u6c4e\u7528\u30ed\u30b8\u30c3\u30afIC\u306e\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306b\u3042\u3063\u305f\u8ad6\u7406\u56f3\u3092\u30b7\u30df\u30e5\u30ec\u30fc\u30c8\u3057\u3066\u307f\u307e\u3057\u305f(<strong>\u56f32-6<\/strong>)\u3002 \u3053\u306eIC\u306f4\u30d3\u30c3\u30c8\u306eand, or, xor, \u8db3\u3057\u7b97, \u5f15\u304d\u7b97, \u6bd4\u8f03\u306a\u3069\u306e\u4e00\u901a\u308a\u306e\u57fa\u672c\u7684\u306a\u6f14\u7b97\u304c\u3067\u304d\u308b<strong>\u7d44\u307f\u5408\u308f\u305b\u56de\u8def<\/strong>\u3067\u3059\u3002 \u4e0b\u306e\u30c6\u30fc\u30d6\u30eb\u304c\u771f\u7406\u5024\u8868\u3067\u3059\u304c\u5165\u529b\u304cS0\uff5eS3, A0\uff5eA3, B0\uff5eB3, Cn, M\u306e 14\u500b\u3068\u3001\u51fa\u529b\u304c F0\uff5eF3, A=B, Cn+4, X, Y \u306e8\u500b\u3042\u308a\u307e\u3059\u3002 \u51fa\u529b\u306e\u3046\u3061\u306eCn+4, X, Y \u306b\u3064\u3044\u3066\u306f\u8907\u6570\u306eIC\u3092\u3064\u306a\u3050\u969b\u306e\u30ad\u30e3\u30ea\u30fc\u306b \u306a\u308a\u307e\u3059\u3002\u56de\u8def\u56f3\u306e\u4e0a\u90e8\u306e\u8907\u96d1\u306a\u90e8\u5206\u306f\u3053\u306e\u30ad\u30e3\u30ea\u30fc\u306b\u95a2\u3059\u308b\u90e8\u5206\u306a\u306e\u3067\u3001 \u3053\u3053\u3092\u9664\u3051\u3070\u56de\u8def\u3092\u5358\u7d14\u306b\u3067\u304d\u308b\u3068\u601d\u3044\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u30c7\u30fc\u30bf\u30b7\u30fc\u30c8\u306b\u3042\u308b\u3082\u306e\u3092\u305d\u306e\u307e\u307e\u518d\u73fe\u3057\u307e\u3057\u305f(\u624b\u3067\u4f5c\u3063\u3066\u3001\u30c6\u30b9\u30c8\u3082\u3057\u3066\u306a\u3044\u306e\u3067 \u30ad\u30e3\u30ea\u30fc\u90e8\u5206\u306f\u914d\u7dda\u304c\u9593\u9055\u3048\u3066\u3044\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u305d\u306e\u5834\u5408\u3054\u6307\u6458\u304f\u3060\u3055\u3044)\u3002\u307e\u305f\u3001\u4eca\u3053\u306eIC\u306f\u624b\u306b\u5165\u308a\u3065\u3089\u3044\u3088\u3046\u3067\u3059\u306e\u3067\u3054\u4e86\u627f\u304f\u3060\u3055\u3044\u3002 \n<\/p>\n\n\n\n<p>\n\u8fd1\u5e74\u306eCPU\u306b\u3053\u306eIC\u304c\u4f7f\u308f\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u3044\u3067\u3059\u304c\u3001\u81ea\u4f5cCPU\u306a\u3069\u306b\u306f\u3068\u3066\u3082\u4f7f\u3044\u7269\u306b\u306a\u308b\u3088\u3046\u3067\u3059\u306e\u3067\u3001 \u69d8\u3005\u306a\u6f14\u7b97\u304c\u3067\u304d\u308b\u7d44\u307f\u5408\u308f\u305b\u56de\u8def\u306e\u4e00\u4f8b\u3068\u3057\u3066\u8aac\u660e\u3057\u307e\u3059\u3002\u5165\u529b\u306eS0\uff5eS3\u306ffunction Selection\u3067\u3001 \u6a5f\u80fd\u3092\u9078\u629e\u3059\u308b\u5165\u529b\u3067\u3059\u300216\u901a\u308a\u304c\u9078\u629e\u3067\u304d\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002M\u306fMode\u3067\u3053\u3053\u3067\u30822\u901a\u308a\u3092\u9078\u629e\u3067\u304d\u307e\u3059\u3002M\u304cH\u306e\u3068\u304d\u8ad6\u7406\u6f14\u7b97\u3068\u306a\u308a\u7e70\u308a\u4e0a\u304c\u308a\u304c\u8d77\u3053\u308a\u307e\u305b\u3093\u3002 M\u304cL\u306e\u3068\u304d\u306f\u7b97\u8853\u6f14\u7b97\u3067\u7e70\u308a\u4e0a\u304c\u308a\u7e70\u308a\u4e0b\u304c\u308a\u304c\u8d77\u3053\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u52a0\u7b97\u3067\u306f\u7e70\u308a\u4e0a\u304c\u308a\u304c\u8d77\u304d\u305f\u3068\u304d\u306bCn+4 \u304cL\u3068\u306a\u308a\u3001\u3082\u3046\u4e00\u3064\u7528\u610f\u3057\u305fALU\u5165\u529b\u306eCn\u306b\u7e4b\u3052\u308c\u3070\u3001L\u306e\u3068\u304d\u306f(H\u306e\u3068\u304d\u3088\u308a)\u30d7\u30e9\u30b91\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u308b\u3088\u3046\u3067\u3059\u3002 \u5165\u529b\u306fA0\uff5eA3, B0\uff5eB3\u306e4\u30d3\u30c3\u30c8\u305a\u3064\u306e2\u5024\u3092\u6271\u3048\u307e\u3059\u3002A0(B0)\u304c2\u9032\u6570\u4e0b1\u6841\u76ee\u3001A3(B3)\u304c4\u6841\u76ee\u3068\u306a\u308a\u307e\u3059\u3002\u7d50\u679c\u306fF0\uff5eF3\u306b\u51fa\u529b\u3055\u308c\u307e\u3059\u3002 \u5f15\u304d\u7b97\u3067\u306f\u30de\u30a4\u30ca\u30b9\u5024\u306b\u306a\u308b\u3068\u304dCn+4\u304cH\u306b\u306a\u308a\u30012\u306e\u88dc\u6570\u8868\u73fe\u306b\u306a\u308b\u3088\u3046\u3067\u3059\u3002 2\u306e\u88dc\u6570\u3068\u306f\u30d3\u30c3\u30c8\u53cd\u8ee2\u3057\u30661\u3092\u52a0\u3048\u305f\u3082\u306e\u3067\u3059\u3002\u4f8b\u3048\u3070-1\u3067\u3042\u308c\u3070\u30010001(+1)\u306e\u30d3\u30c3\u30c8\u53cd\u8ee21110\u306b1\u3092\u8db3\u3057\u30661111\u306b\u306a\u308a\u307e\u3059\u3002 \uff08\u88dc\u6570\u3068\u306f\u52a0\u7b97\u51e6\u7406\u3057\u305f\u3068\u304d\u6841\u3042\u3075\u308c\u3092\u7121\u8996\u3059\u308c\u3070\u6e1b\u7b97\u3067\u304d\u308b\u3088\u3046\u306a\u6570\u3067\u3059\u3002 \u4f8b\u3048\u3070 5 &#8211; 3 \u2192 0101 + (-0011) = 0101 + (1100 + 0001 &#8211; 10000) = 0101 + (<strong>1101<\/strong> &#8211; 10000) = 0010\u3002 \u3053\u306e\u3088\u3046\u306b2\u306e\u88dc\u6570\u3092\u4f7f\u3048\u3070\u52a0\u7b97\u3067\u6e1b\u7b97\u51e6\u7406\u3067\u304d\u307e\u3059\u3002\u203b -10000\u306f\u6841\u3042\u3075\u308c\u3076\u3093\u3002\uff09 \u51fa\u529b\u306e\u300cA=B\u300d\u306fA\u3068B\u306e\u5165\u529b\u5024\u3092\u6bd4\u8f03\u3059\u308b\u3082\u306e\u3067\u3001M=L\u3001Cn=H\u3001S0\uff5eS3\u304cLHHL\u306e\u3068\u304d F = A MINUS B MINUS 1\u3067A, B\u304c\u540c\u3058\u5024\u306e\u3068\u304d\u6f14\u7b97\u7d50\u679c\u304c-1(2\u306e\u88dc\u6570\u3067\u51fa\u529b\u306fHHHH\u306b\u306a\u308b)\u306b\u306a\u308b\u3053\u3068\u3092\u5229\u7528\u3057\u3001 F0\uff5eF3\u51fa\u529b\u304c\u5168\u90e8H\u306e\u3068\u304dA=B\u3092H\u3068\u3059\u308b\u3082\u306e\u3067\u3059\u3002 Cn+4\u3092\u4f7f\u3048\u3070\u5927\u5c0f\u3082\u5224\u5225\u3067\u304d\u308b\u3053\u3068\u306b\u306a\u308a\u307e\u3059\u3002 \n<\/p>\n\n\n\n<p>\n<table border=\"2\">\n\t\t\t\t\t<tbody><tr><th rowspan=\"2\" colspan=\"4\">SELECTION<\/th><th colspan=\"3\">ACTIVE-HIGH DATA<\/th><\/tr>\n\t\t\t\t\t<tr><th rowspan=\"2\">M = H; LOGIC FUNCTIONS<\/th><th colspan=\"2\">M = L; ARITHMETIC OPERATIONS<\/th><\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<th>S0<\/th><th>S1<\/th><th>S2<\/th><th>S3<\/th>\n\t\t\t\t\t\t<th><span style=\"text-decoration-line: overline;\">C<\/span>n = H (no carry)<\/th>\n\t\t\t\t\t\t<th><span style=\"text-decoration-line: overline;\">C<\/span>n = L (with carry)<\/th>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>L<\/td><td>L<\/td><td>L<\/td><td>F = <span style=\"text-decoration-line: overline;\">A<\/span><\/td><td>F = A<\/td><td>F = A PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>L<\/td><td>L<\/td><td>H<\/td><td>F = <span style=\"text-decoration-line: overline;\">A<\/span> + B<\/td><td>F = A PLUS AB<\/td><td>F = A PLUS AB PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>L<\/td><td>H<\/td><td>L<\/td><td>F = <span style=\"text-decoration-line: overline;\">AB<\/span><\/td><td>F = A PLUS A<span style=\"text-decoration-line: overline;\">B<\/span><\/td><td>F = A PLUS A<span style=\"text-decoration-line: overline;\">B<\/span> PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>L<\/td><td>H<\/td><td>H<\/td><td>F = 1<\/td><td>F = A PLUS A<\/td><td>F = A PLUS A PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>H<\/td><td>L<\/td><td>L<\/td><td>F = <span style=\"text-decoration-line: overline;\">A<\/span>B<\/td><td>F = A + <span style=\"text-decoration-line: overline;\">B<\/span><\/td><td>F = (A + <span style=\"text-decoration-line: overline;\">B<\/span>) PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>H<\/td><td>L<\/td><td>H<\/td><td>F = B<\/td><td>F = (A + <span style=\"text-decoration-line: overline;\">B<\/span>) PLUS AB<\/td><td>F = (A + <span style=\"text-decoration-line: overline;\">B<\/span>) PLUS AB PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>H<\/td><td>H<\/td><td>L<\/td><td>F = A ^ B<\/td><td>F = A MINUS B MINUS 1<\/td><td>F = A MINUS B<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>L<\/td><td>H<\/td><td>H<\/td><td>H<\/td><td>F = A + B<\/td><td>F = (A + <span style=\"text-decoration-line: overline;\">B<\/span>) PLUS A<\/td><td>F = (A + <span style=\"text-decoration-line: overline;\">B<\/span>) PLUS A PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>L<\/td><td>L<\/td><td>L<\/td><td>F = <span style=\"text-decoration-line: overline;\">A + B<\/span><\/td><td>F = A + B<\/td><td>F = (A + B) PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>L<\/td><td>L<\/td><td>H<\/td><td>F = <span style=\"text-decoration-line: overline;\">A ^ B<\/span><\/td><td>F = A PLUS B<\/td><td>F = A PLUS B PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>L<\/td><td>H<\/td><td>L<\/td><td>F = <span style=\"text-decoration-line: overline;\">B<\/span><\/td><td>F = (A + B) PLUS A<span style=\"text-decoration-line: overline;\">B<\/span><\/td><td>F = (A + B) PLUS A<span style=\"text-decoration-line: overline;\">B<\/span> + PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>L<\/td><td>H<\/td><td>H<\/td><td>F = A + <span style=\"text-decoration-line: overline;\">B<\/span><\/td><td>F = (A + B) PLUS A<\/td><td>F = (A + B) PLUS A PLUS 1<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>H<\/td><td>L<\/td><td>L<\/td><td>F = 0<\/td><td>F = MINUS 1 (2&#8217;s COMPL)<\/td><td>F = ZERO<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>H<\/td><td>L<\/td><td>H<\/td><td>F = AB<\/td><td>F = AB MINUS 1<\/td><td>F = AB<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>H<\/td><td>H<\/td><td>L<\/td><td>F = A<span style=\"text-decoration-line: overline;\">B<\/span><\/td><td>F = A<span style=\"text-decoration-line: overline;\">B<\/span> MINUS 1<\/td><td>F = A<span style=\"text-decoration-line: overline;\">B<\/span><\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t\t<tr>\n\t\t\t\t\t\t<td>H<\/td><td>H<\/td><td>H<\/td><td>H<\/td><td>F = A<\/td><td>F = A MINUS 1<\/td><td>F = A<\/td>\n\t\t\t\t\t<\/tr>\n\t\t\t\t<\/tbody><\/table>\n<\/p>\n\n\n\n\u203b &#8220;^&#8221;\u306fXOR(\u6392\u4ed6\u7684\u8ad6\u7406\u548c)\u3092\u610f\u5473\u3057\u307e\u3059\u3002&#8221;+&#8221;\u306f\u8ad6\u7406\u548c\u3001&#8221;AB&#8221;\u306a\u3069\u306fA\u3068B\u306e\u8ad6\u7406\u7a4d\u3001&#8221;<span style=\"text-decoration-line: overline;\">\u3000<\/span>&#8220;\u306fNOT\u3092\u610f\u5473\u3057\u307e\u3059\u3002 \n\n\n\n<iframe loading=\"lazy\" class=\"circuit\" src=\"\/~wakaguri\/circuitjs1\/circuitjs.html?startCircuitLink=..\/about_electronic\/circuit\/alu.txt\" width=\"800\" height=\"750\"><\/iframe>\n\n\n\n<strong>\u56f32-6 ALU\u306e\u4e00\u7a2e(74HC181)\u306e\u56de\u8def<\/strong>\n","protected":false},"excerpt":{"rendered":"<p>ALU(\u6f14\u7b97\u88c5\u7f6e)\u306fCPU\u3092\u8abf\u3079\u308b\u3068\u5185\u90e8\u69cb\u9020\u306e\u4e00\u90e8\u3068\u3057\u3066\u5fc5\u305a\u767b\u5834\u3059\u308b\u3082\u306e\u3067\u3059\u3002\u8ad6 &hellip; <a href=\"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/?p=157\">\u7d9a\u304d\u3092\u8aad\u3080 <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[7,8],"class_list":["post-157","post","type-post","status-publish","format-standard","hentry","category-electronic","tag-cpu","tag-8"],"_links":{"self":[{"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/157","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=157"}],"version-history":[{"count":10,"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/157\/revisions"}],"predecessor-version":[{"id":167,"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/157\/revisions\/167"}],"wp:attachment":[{"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=157"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=157"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/mession.mydns.jp\/~wakaguri\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=157"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}