{"id":484,"date":"2022-02-27T21:56:01","date_gmt":"2022-02-27T13:56:01","guid":{"rendered":"http:\/\/www.vlab.cn\/main\/?p=484"},"modified":"2022-02-27T21:56:01","modified_gmt":"2022-02-27T13:56:01","slug":"%e6%b1%87%e7%bc%96%e6%8c%87%e4%bb%a4%e5%bd%b1%e5%93%8d%e6%a0%87%e5%bf%97%e4%bd%8d%e4%b8%80%e8%a7%88","status":"publish","type":"post","link":"http:\/\/www.vlab.cn\/main\/index.php\/484.html","title":{"rendered":"\u6c47\u7f16\u6307\u4ee4\u5f71\u54cd\u6807\u5fd7\u4f4d\u4e00\u89c8"},"content":{"rendered":"\n

\u6c47\u7f16\u6307\u4ee4\u5f71\u54cd\u6807\u5fd7\u4f4d\u4e00\u89c8<\/strong>
<\/p>\n\n\n\n

\u52a0\u6cd5\u6307\u4ee4 ADD (addition)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1   \u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u6709\u8fdb\u4f4d<\/p>\n\n\n\n

                     CF=0   \u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u65e0\u8fdb\u4f4d<\/p>\n\n\n\n

                     OF=1   \u4e24\u4e2a\u540c\u7b26\u53f7\u6570\u76f8\u52a0\uff08\u6b63\u6570+\u6b63\u6570 \u6216 \u8d1f\u6570+\u8d1f\u6570\uff09\uff0c\u7ed3\u679c\u7b26\u53f7\u4e0e\u5176\u76f8\u53cd\u3002<\/p>\n\n\n\n

                     OF=0   \u4e24\u4e2a\u4e0d\u540c\u7b26\u53f7\u6570\u76f8\u52a0\uff0c\u6216\u540c\u7b26\u53f7\u6570\u76f8\u52a0\uff0c\u7ed3\u679c\u7b26\u53f7\u4e0e\u5176\u76f8\u540c\u3002<\/p>\n\n\n\n

\u5e26\u8fdb\u4f4d\u52a0\u6cd5\u6307\u4ee4 ADC (add with carry)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1   \u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u6709\u8fdb\u4f4d<\/p>\n\n\n\n

                     CF=0   \u6700\u4f4e\u6709\u6548\u4f4d\u76f8\u9ad8\u4f4d\u65e0\u8fdb\u4f4d<\/p>\n\n\n\n

                     OF=1   \u4e24\u4e2a\u540c\u7b26\u53f7\u6570\u76f8\u52a0\uff0c\u7ed3\u679c\u7b26\u53f7\u4e0e\u5176\u76f8\u53cd\uff0c<\/p>\n\n\n\n

                     OF=0   \u4e24\u4e2a\u540c\u7b26\u53f7\u6570\u76f8\u52a0\uff0c\u6216\u540c\u7b26\u53f7\u76f8\u52a0\uff0c\u7ed3\u679c\u7b26\u53f7\u4e0e\u5176\u76f8\u540c<\/p>\n\n\n\n

\u52a01\u6307\u4ee4 INC (increament)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     \u5bf9CF\u65e0\u5f71\u54cd<\/p>\n\n\n\n

                     OF=1   \u4e24\u4e2a\u540c\u7b26\u53f7\u6570\u76f8\u52a0\uff0c\u7ed3\u679c\u7b26\u53f7\u4e0e\u5176\u76f8\u53cd\uff0c<\/p>\n\n\n\n

                     OF=0   \u4e24\u4e2a\u540c\u7b26\u53f7\u6570\u76f8\u52a0\uff0c\u6216\u540c\u7b26\u53f7\u76f8\u52a0\uff0c\u7ed3\u679c\u7b26\u53f7\u4e0e\u5176\u76f8\u540c\u3002<\/p>\n\n\n\n

\u51cf\u6cd5\u6307\u4ee4 SUB (subtract)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u6709\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u5c0f\u4e8e\u51cf\u6570\uff0c\u4e0d\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     CF=0 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4e3a\u5411\u9ad8\u4f4d\u65e0\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u3009=\u51cf\u6570\uff0c\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     OF=1 \u4e24\u6570\u7b26\u53f7\u76f8\u53cd\uff08\u6b63\u6570-\u8d1f\u6570\uff0c\u6216\u8d1f\u6570-\u6b63\u6570\uff09\uff0c\u800c\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n

                     OF=0 \u540c\u7b26\u53f7\u6570\u76f8\u51cf\u65f6\uff0c\u6216\u4e0d\u540c\u7b26\u53f7\u6570\u76f8\u51cf\uff0c\u5176\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u4e0d\u540c\u3002<\/p>\n\n\n\n

\u5e26\u501f\u4f4d\u51cf\u6cd5\u6307\u4ee4 SBB (subtract with borrow)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u6709\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u5c0f\u4e8e\u51cf\u6570\uff0c\u4e0d\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     CF=0 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4e3a\u5411\u9ad8\u4f4d\u65e0\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u3009=\u51cf\u6570\uff0c\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     OF=1 \u4e24\u6570\u7b26\u53f7\u76f8\u53cd\uff08\u6b63\u6570-\u8d1f\u6570\uff0c\u6216\u8d1f\u6570-\u6b63\u6570\uff09\uff0c\u800c\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n

                     OF=0 \u540c\u7b26\u53f7\u6570\u76f8\u51cf\u65f6\uff0c\u6216\u4e0d\u540c\u7b26\u53f7\u6570\u76f8\u51cf\uff0c\u5176\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u4e0d\u540c\u3002<\/p>\n\n\n\n

\u51cf1\u6307\u4ee4 DEC (decrement)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     \u5bf9CF\u65e0\u5f71\u54cd<\/p>\n\n\n\n

                     OF=1 \u4e24\u6570\u7b26\u53f7\u76f8\u53cd\uff08\u6b63\u6570-\u8d1f\u6570\uff0c\u6216\u8d1f\u6570-\u6b63\u6570\uff09\uff0c\u800c\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n

                     OF=0 \u540c\u7b26\u53f7\u6570\u76f8\u51cf\u65f6\uff0c\u6216\u4e0d\u540c\u7b26\u53f7\u6570\u76f8\u51cf\uff0c\u5176\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u4e0d\u540c\u3002<\/p>\n\n\n\n

\u6bd4\u8f83\u6307\u4ee4 CMP (compare)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u6709\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u5c0f\u4e8e\u51cf\u6570\uff0c\u4e0d\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     CF=0 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4e3a\u5411\u9ad8\u4f4d\u65e0\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u3009=\u51cf\u6570\uff0c\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     OF=1 \u4e24\u6570\u7b26\u53f7\u76f8\u53cd\uff08\u6b63\u6570-\u8d1f\u6570\uff0c\u6216\u8d1f\u6570-\u6b63\u6570\uff09\uff0c\u800c\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n

                     OF=0 \u540c\u7b26\u53f7\u6570\u76f8\u51cf\u65f6\uff0c\u6216\u4e0d\u540c\u7b26\u53f7\u6570\u76f8\u51cf\uff0c\u5176\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u4e0d\u540c\u3002<\/p>\n\n\n\n

\u6c42\u8865\u6307\u4ee4 NEG (negate)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1 \u3000\u4e0d\u4e3a0\u7684\u64cd\u4f5c\u6570\u6c42\u8865\u65f6<\/p>\n\n\n\n

                     CF=0 \u3000\u4e3a0\u7684\u64cd\u4f5c\u6570\u6c42\u8865\u65f6<\/p>\n\n\n\n

                     OF=1    \u64cd\u4f5c\u6570\u4e3a-128\uff08\u5b57\u8282\u8fd0\u7b97\uff09\u6216\u64cd\u4f5c\u6570\u4e3a-32768\uff08\u5b57\u8fd0\u7b97\uff09<\/p>\n\n\n\n

                     OF=0    \u5f53\u6c42\u8865\u8fd0\u7b97\u7684\u64cd\u4f5c\u6570\u4e0d\u4e3a\uff0d128\uff08\u5b57\u8282\uff09\u6216\uff0d32768\uff08\u5b57\uff09\u65f6<\/p>\n\n\n\n

\u65e0\u7b26\u53f7\u4e58\u6cd5\u6307\u4ee4 MUL (unsigned multiple)    \u6709\u7b26\u53f7\u4e58\u6cd5\u6307\u4ee4 IMUL(signed muliple)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a\u4e58\u6cd5\u6307\u4ee4\u53ea\u5f71\u54cd\u6807\u5fd7\u4f4dCF\u548cOF\uff0c\u5176\u4ed6\u6761\u4ef6\u7801\u4f4d\u65e0\u5b9a\u4e49\u3002<\/p>\n\n\n\n

                     MUL\u6307\u4ee4\u7684\u6761\u4ef6\u7801\u8bbe\u7f6e\u4e3a\uff1a<\/p>\n\n\n\n

                     CF OF=0 0 \u4e58\u79ef\u7684\u9ad8\u4e00\u534a\u4e3a0\uff08\u5b57\u8282\u64cd\u4f5c\u7684\uff08AH\uff09\u6216\u5b57\u64cd\u4f5c\u7684\uff08DX\uff09\uff09<\/p>\n\n\n\n

                     CF OF=1 1 \u4e58\u79ef\u7684\u9ad8\u4e00\u534a\u4e0d\u4e3a0<\/p>\n\n\n\n

                     IMUL\u6307\u4ee4\u7684\u6761\u4ef6\u7801\u8bbe\u7f6e\u4e3a\uff1a<\/p>\n\n\n\n

                     CF OF=0 0 \u4e58\u79ef\u7684\u9ad8\u4e00\u534a\u4e3a\u4f4e\u4e00\u534a\u7684\u7b26\u53f7\u6269\u5c55.<\/p>\n\n\n\n

                     CF OF=1 1 \u5176\u4ed6\u60c5\u51b5<\/p>\n\n\n\n

\u65e0\u7b26\u53f7\u6570\u9664\u6cd5 DIV (unsigned divide)     \u5e26\u7b26\u53f7\u6570\u9664\u6cd5 IDIV (singed divide)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a\u4e0d\u5f71\u54cd\u6761\u4ef6\u7801\u3002<\/p>\n\n\n\n

\u903b\u8f91\u4e0e AND (logic and)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     \u6307\u4ee4\u6267\u884c\u540e CF \u548c OF \u7f6e\u96f6\uff0cAF\u65e0\u5b9a\u4e49\u3002<\/p>\n\n\n\n

                     PF=1 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5076\u6570\u65f6\u7f6e1<\/p>\n\n\n\n

                     PF=0 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5947\u6570\u65f6\u7f6e0<\/p>\n\n\n\n

\u903b\u8f91\u6216 or (logic or)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     \u4ee4\u6267\u884c\u540e CF \u548c OF \u7f6e\u96f6\uff0cAF\u65e0\u5b9a\u4e49\u3002<\/p>\n\n\n\n

                     PF=1 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5076\u6570\u65f6\u7f6e1<\/p>\n\n\n\n

                     PF=0 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5947\u6570\u65f6\u7f6e0<\/p>\n\n\n\n

\u903b\u8f91\u975e NOT (logic not)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a\u5bf9\u6807\u5fd7\u4f4d\u65e0\u5f71\u54cd<\/p>\n\n\n\n

\u5f02\u6216 XOR (exclusice or)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     \u4ee4\u6267\u884c\u540e CF \u548c OF \u7f6e\u96f6\uff0cAF\u65e0\u5b9a\u4e49\u3002<\/p>\n\n\n\n

                     PF=1 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5076\u6570\u65f6\u7f6e1<\/p>\n\n\n\n

                     PF=0 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5947\u6570\u65f6\u7f6e0<\/p>\n\n\n\n

\u6d4b\u8bd5\u6307\u4ee4 TEST<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     \u4ee4\u6267\u884c\u540e CF \u548c OF \u7f6e\u96f6\uff0cAF\u65e0\u5b9a\u4e49\u3002<\/p>\n\n\n\n

                     PF=1 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5076\u6570\u65f6\u7f6e1<\/p>\n\n\n\n

                     PF=0 \u7ed3\u679c\u64cd\u4f5c\u6570\u4e2d1\u7684\u4e2a\u6570\u4e3a\u5947\u6570\u65f6\u7f6e0<\/p>\n\n\n\n

\u903b\u8f91\u5de6\u79fb SHL (shift logical left)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u65f6\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

\u903b\u8f91\u53f3\u79fb SHR (shift logical right)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u65f6\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

\u7b97\u672f\u5de6\u79fb SAL (shift arithmetic left)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u65f6\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

\u7b97\u672f\u53f3\u79fb SAR (shift arithmetic right)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u65f6\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

\u5faa\u73af\u5de6\u79fb ROL (rotate left)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u65f6\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

\u5faa\u73af\u53f3\u79fb ROR (rotate right)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u65f6\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

\u5e26\u8fdb\u4f4d\u7684\u5faa\u73af\u5de6\u79fb RCL (rotate left through carry)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c\u3002<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u79fb\u52a8\u540e\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     SF\u3001ZF\u3001PF\u6807\u5fd7\u4f4d\u4e0d\u53d7\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u5e26\u8fdb\u4f4d\u7684\u5faa\u73af\u53f3\u79fb RCR (rotate right through carry)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1aCF=\u79fb\u5165\u7684\u6570\u503c\u3002<\/p>\n\n\n\n

                     OF=1 \u5f53cnt=1\u65f6\uff0c\u64cd\u4f5c\u6570\u6700\u9ad8\u4f4d\u7684\u503c\u672a\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     OF=0 \u5f53cnt=1\u65f6\uff0c\u64cd\u4f5c\u6570\u6700\u9ad8\u4f4d\u7684\u503c\u53d1\u751f\u53d8\u5316\u3002<\/p>\n\n\n\n

                     SF\u3001ZF\u3001PF\u6807\u5fd7\u4f4d\u4e0d\u53d7\u5f71\u54cd\u3002<\/p>\n\n\n\n

\u4e32\u4f20\u9001 MOVSB \/ MOVSW (move string byte\/word)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6761\u4ef6\u7801\u7684\u5f71\u54cd\uff1a\u4e0d\u5f71\u54cd\u6761\u4ef6\u7801\u3002<\/p>\n\n\n\n

\u5b58\u4e32 STOSB \/ STOSW (stroe from string byte\/word)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6761\u4ef6\u7801\u7684\u5f71\u54cd\uff1a\u4e0d\u5f71\u54cd\u6761\u4ef6\u7801\u3002<\/p>\n\n\n\n

\u53d6\u4e32LODSB \/ LODSW (load from string byte\/word)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6761\u4ef6\u7801\u7684\u5f71\u54cd\uff1a\u4e0d\u5f71\u54cd\u6761\u4ef6\u7801\u3002<\/p>\n\n\n\n

\u4e32\u6bd4\u8f83 CMPSB \/ CMPSW (compare string byte\/word)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6761\u4ef6\u7801\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u6709\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u5c0f\u4e8e\u51cf\u6570\uff0c\u4e0d\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     CF=0 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4e3a\u5411\u9ad8\u4f4d\u65e0\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u3009=\u51cf\u6570\uff0c\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     OF=1 \u4e24\u6570\u7b26\u53f7\u76f8\u53cd\uff08\u6b63\u6570-\u8d1f\u6570\uff0c\u6216\u8d1f\u6570-\u6b63\u6570\uff09\uff0c\u800c\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n

                     OF=0 \u540c\u7b26\u53f7\u6570\u76f8\u51cf\u65f6\uff0c\u6216\u4e0d\u540c\u7b26\u53f7\u6570\u76f8\u51cf\uff0c\u5176\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u4e0d\u540c\u3002<\/p>\n\n\n\n

\u4e32\u626b\u63cf SCASB \/ SCASW (scan string byte \/ word)<\/p>\n\n\n\n

\u6307\u4ee4\u5bf9\u6761\u4ef6\u7801\u7684\u5f71\u54cd\uff1a<\/p>\n\n\n\n

                     CF=1 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4f4d\u5411\u9ad8\u4f4d\u6709\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u5c0f\u4e8e\u51cf\u6570\uff0c\u4e0d\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     CF=0 \u4e8c\u8fdb\u5236\u51cf\u6cd5\u8fd0\u7b97\u4e2d\u6700\u9ad8\u6709\u6548\u4e3a\u5411\u9ad8\u4f4d\u65e0\u501f\u4f4d\uff08\u88ab\u51cf\u6570\u3009=\u51cf\u6570\uff0c\u591f\u51cf\u7684\u60c5\u51b5\uff09<\/p>\n\n\n\n

                     OF=1 \u4e24\u6570\u7b26\u53f7\u76f8\u53cd\uff08\u6b63\u6570-\u8d1f\u6570\uff0c\u6216\u8d1f\u6570-\u6b63\u6570\uff09\uff0c\u800c\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u76f8\u540c\u3002<\/p>\n\n\n\n

                     OF=0 \u540c\u7b26\u53f7\u6570\u76f8\u51cf\u65f6\uff0c\u6216\u4e0d\u540c\u7b26\u53f7\u6570\u76f8\u51cf\uff0c\u5176\u7ed3\u679c\u7b26\u53f7\u4e0e\u51cf\u6570\u4e0d\u540c\u3002<\/p>\n\n\n\n

\u6761\u4ef6\u8f6c\u79fb\u6307\u4ee4<\/p>\n\n\n\n

\u6307\u4ee4\u7684\u6c47\u7f16\u683c\u5f0f\u53ca\u529f\u80fd    \u6839\u636e\u6761\u4ef6\u7801\u7684\u503c\u8f6c\u79fb\uff1a<\/p>\n\n\n\n

49\u3001JZ(JE) OPR        ZF=1<\/p>\n\n\n\n

50\u3001JNZ(JNE) OPR   ZF=0<\/p>\n\n\n\n

51\u3001JS OPR             SF=1<\/p>\n\n\n\n

52\u3001JNS OPR           SF=0<\/p>\n\n\n\n

53\u3001JO OPR             OF=1<\/p>\n\n\n\n

54\u3001JNO OPR          OF=0<\/p>\n\n\n\n

55\u3001JP OPR             PF=1<\/p>\n\n\n\n

56\u3001JNP OPR           PF=0<\/p>\n\n\n\n

57\u3001JC OPR             CF=1<\/p>\n\n\n\n

58\u3001JNC OPR          CF=0<\/p>\n\n\n\n

\u6bd4\u8f83\u4e24\u4e2a\u65e0\u7b26\u53f7\u6570\uff0c\u6839\u636e\u6bd4\u8f83\u7684\u7ed3\u679c\u8f6c\u79fb<\/p>\n\n\n\n

59\u3001JB(JNAE,JC)   OPR   CF=1         \u88ab\u51cf\u6570\u5c0f\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

60\u3001JNB(JAE,JNC) OPR   CF=0         \u88ab\u51cf\u6570\u5927\u4e8e\u6216\u7b49\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

61\u3001JBE(JNA) OPR      CF\u6216ZF=1      \u88ab\u51cf\u6570\u5c0f\u4e8e\u6216\u7b49\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

62\u3001JNBE(JA) OPR      CF\u6216ZF=0      \u88ab\u51cf\u6570\u5927\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

\u6bd4\u8f83\u4e24\u4e2a\u5e26\u7b26\u53f7\u6570\uff0c\u6839\u636e\u6bd4\u8f83\u7ed3\u679c\u8f6c\u79fb<\/p>\n\n\n\n

63\u3001JL\/JNGE OPR       SF\u5f02\u6216OF=1           \u88ab\u51cf\u6570\u5c0f\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

64\u3001JNL\/JGE           SF\u5f02\u6216OF=0               \u88ab\u51cf\u6570\u4e0d\u5c0f\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

65\u3001JLE\/JNE           (SF\u5f02\u6216OF)\u4e0eZF=1     \u88ab\u51cf\u6570\u4e0d\u5927\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

66\u3001JNLE\/JG           (SF\u5f02\u6216OF)\u4e0eZF=0     \u88ab\u51cf\u6570\u5927\u4e8e\u51cf\u6570\u5219\u8f6c\u79fb<\/p>\n\n\n\n

\u6839\u636eCX\u5bc4\u5b58\u5668\u7684\u503c\u8f6c\u79fb<\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/p>\n\n\n\n

67\u3001JCXZ\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 (CX)=0\u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0 \u00a0CX\u5185\u5bb9\u4e3a\u96f6 \u5219\u8f6c\u79fb<\/p>\n","protected":false},"excerpt":{"rendered":"

\u6c47\u7f16\u6307\u4ee4\u5f71\u54cd\u6807\u5fd7\u4f4d\u4e00\u89c8 \u52a0\u6cd5\u6307\u4ee4 ADD (addition) \u6307\u4ee4\u5bf9\u6807\u5fd7\u4f4d\u7684\u5f71\u54cd\uff1a   &nbsp…<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-484","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/posts\/484","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/comments?post=484"}],"version-history":[{"count":0,"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/posts\/484\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/media?parent=484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/categories?post=484"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.vlab.cn\/main\/index.php\/wp-json\/wp\/v2\/tags?post=484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}