{"id":94847,"date":"2024-07-01T15:04:05","date_gmt":"2024-07-01T07:04:05","guid":{"rendered":"https:\/\/www.techphant.cn\/?p=94847"},"modified":"2024-07-01T15:04:09","modified_gmt":"2024-07-01T07:04:09","slug":"dpjszlssmys","status":"publish","type":"post","link":"https:\/\/www.techphant.cn\/blog\/94847.html","title":{"rendered":"\u5355\u7247\u673aSETB\u6307\u4ee4\u662f\u4ec0\u4e48\u610f\u601d"},"content":{"rendered":"\n<p>\u3000\u3000\u5728<strong>\u5355\u7247\u673a<\/strong>\u4e2d\uff0cSETB\u6307\u4ee4\u662fMCS-51\u7cfb\u5217\u6c47\u7f16\u6307\u4ee4\u4e4b\u4e00\uff0c\u7528\u4e8e\u4f4d\u64cd\u4f5c\u3002\u5177\u4f53\u6765\u8bf4\uff0cSETB\u6307\u4ee4\u7684\u4f5c\u7528\u662f\u5c06\u6307\u5b9a\u5bc4\u5b58\u5668\u6216\u5185\u5b58\u5355\u5143\u7684\u6700\u4f4e\u4f4d\u8bbe\u7f6e\u4e3a1\u3002\u800c\u5176\u4ed6\u4f4d\u4fdd\u6301\u4e0d\u53d8\u3002\u4f8b\u5982\uff0c\u4f7f\u7528SETB P0.0\u53ef\u4ee5\u5c06P0.0\u7aef\u53e3\u7f6e\u9ad8\u7535\u5e73\u3002<\/p>\n\n\n\n<p>\u3000\u3000SETB\u6307\u4ee4\u901a\u5e38\u7528\u4e8e\u63a7\u5236\u4f4d\u7684\u8bbe\u7f6e\uff0c\u4f8b\u5982\u5728\u5b9a\u65f6\/\u8ba1\u6570\u5668\u4e2d\u65ad\u5141\u8bb8\u4f4dET0\u4e3a1\u65f6\uff0c\u5355\u7247\u673a\u4f1a\u54cd\u5e94\u5b9a\u65f6\/\u8ba1\u6570\u56680\u7684\u6ea2\u51fa\u4e2d\u65ad\u3002\u6b64\u5916\uff0cSETB\u6307\u4ee4\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5bf9\u67d0\u4e2aIO\u53e3\u8fdb\u884c\u7f6e\u9ad8\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u3000\u3000SETB\u6307\u4ee4\u5728\u5355\u7247\u673a\u7f16\u7a0b\u4e2d\u7528\u4e8e\u5c06\u6307\u5b9a\u4f4d\u7f6e\u7684\u4f4d\u503c\u8bbe\u7f6e\u4e3a1.\u5e38\u7528\u4e8e\u63a7\u5236\u4f4d\u7684\u64cd\u4f5c\u548c\u4e2d\u65ad\u7ba1\u7406\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e00\u3001 SETB\u6307\u4ee4\u5728\u4e0d\u540c\u5355\u7247\u673a\u578b\u53f7\u4e2d\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u6709\u4f55\u5dee\u5f02?<\/h2>\n\n\n\n<p>\u3000\u3000SETB\u6307\u4ee4\u5728\u4e0d\u540c\u5355\u7247\u673a\u578b\u53f7\u4e2d\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u5b58\u5728\u663e\u8457\u5dee\u5f02\uff0c\u4e3b\u8981\u4f53\u73b0\u5728\u6307\u4ee4\u96c6\u548c\u64cd\u4f5c\u65b9\u5f0f\u4e0a\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>8051\/8052\u5355\u7247\u673a<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000SETB\u6307\u4ee4\u7528\u4e8e\u8bbe\u7f6e\u7279\u5b9a\u4f4d\u4e3a1.\u4f8b\u5982\uff0cSETB P2.7\u4f1a\u5c06P2\u53e3\u7684\u7b2c7\u4f4d\u8bbe\u7f6e\u4e3a1.<\/p>\n\n\n\n<p>\u3000\u3000\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u4e3a\u4f7f\u7528\u4e8c\u8fdb\u5236\u64cd\u4f5c\u7801\uff0c\u5982SETB bit addr: 0xD2\u8868\u793a\u8bbe\u7f6e\u6307\u5b9a\u5730\u5740\u7684\u4f4d\u4e3a1.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>AVR\u5355\u7247\u673a<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000AVR\u5355\u7247\u673a\u4e0d\u76f4\u63a5\u652f\u6301SETB\u548cCLR BIT\u6307\u4ee4\uff0c\u800c\u662f\u901a\u8fc7\u4f4d\u64cd\u4f5c\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u53ef\u4ee5\u4f7f\u7528\u5b8f\u5b9a\u4e49setb(val, bitn) = (val |=(1 << (bitn)))\u6765\u8bbe\u7f6e\u67d0\u4e2a\u4f4d\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u8fd9\u79cd\u65b9\u6cd5\u9700\u8981\u624b\u52a8\u8fdb\u884c\u4f4d\u64cd\u4f5c\uff0c\u800c\u4e0d\u662f\u50cf8051\u90a3\u6837\u6709\u4e13\u95e8\u7684\u6307\u4ee4\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30003.&nbsp;<strong>ARM\u5355\u7247\u673a<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000ARM\u5355\u7247\u673a\u4e5f\u652f\u6301\u4f4d\u64cd\u4f5c\uff0c\u4f46\u5177\u4f53\u7684\u5b9e\u73b0\u65b9\u5f0f\u53ef\u80fd\u4e0e8051\u548cAVR\u6709\u6240\u4e0d\u540c\u3002\u4f8b\u5982\uff0c\u5728ARM\u4f53\u7cfb\u7ed3\u6784\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u72b6\u6001\u8f6c\u6362\u548c\u957f\u8ddd\u79bb\u8df3\u8f6c\u6765\u5b9e\u73b0\u4f4d\u64cd\u4f5c\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30004.&nbsp;<strong>PIC32\u5355\u7247\u673a<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000PIC32\u5355\u7247\u673a\u4f7f\u7528\u4f4d\u5e26\u522b\u540d\u6765\u5b9e\u73b0SETB\u548cCLR\u6307\u4ee4\u3002\u4f8b\u5982\uff0cmems->setb\u548cmemc->clrb\u5206\u522b\u7528\u4e8e\u8bbe\u7f6e\u548c\u6e05\u9664\u7279\u5b9a\u4f4d\u3002<\/p>\n\n\n\n<p>\u3000\u3000\u4e0d\u540c\u5355\u7247\u673a\u578b\u53f7\u5bf9SETB\u6307\u4ee4\u7684\u5177\u4f53\u5b9e\u73b0\u65b9\u5f0f\u6709\u663e\u8457\u5dee\u5f02\uff0c\u4e3b\u8981\u4f53\u73b0\u5728\u6307\u4ee4\u96c6\u3001\u64cd\u4f5c\u65b9\u5f0f\u548c\u786c\u4ef6\u652f\u6301\u4e0a\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e8c\u3001 \u5982\u4f55\u4f7f\u7528SETB\u6307\u4ee4\u8fdb\u884c\u9ad8\u7ea7\u4f4d\u64cd\u4f5c\uff0c\u4f8b\u5982\u8bbe\u7f6e\u591a\u4e2a\u4f4d\u4e3a1?<\/h2>\n\n\n\n<p>\u3000\u3000\u57288051\u5355\u7247\u673a\u4e2d\uff0cSETB\u6307\u4ee4\u7528\u4e8e\u5c06\u6307\u5b9a\u7684\u4f4d\u8bbe\u7f6e\u4e3a1.\u8981\u4f7f\u7528SETB\u6307\u4ee4\u8fdb\u884c\u9ad8\u7ea7\u4f4d\u64cd\u4f5c\uff0c\u4f8b\u5982\u8bbe\u7f6e\u591a\u4e2a\u4f4d\u4e3a1.\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9aa4\u8fdb\u884c\uff1a<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u786e\u5b9a\u76ee\u6807\u5bc4\u5b58\u5668\u548c\u4f4d\u5730\u5740<\/strong>\uff1a\u9996\u5148\u9700\u8981\u786e\u5b9a\u8981\u64cd\u4f5c\u7684\u5bc4\u5b58\u5668\u53ca\u5176\u5bf9\u5e94\u7684\u4f4d\u5730\u5740\u3002\u4f8b\u5982\uff0c\u5982\u679c\u8981\u8bbe\u7f6e\u5bc4\u5b58\u5668PSW\u7684\u7b2c4\u4f4d(AC\u6807\u5fd7\u4f4d)\uff0c\u5219\u76ee\u6807\u5bc4\u5b58\u5668\u662fPSW\uff0c\u4f4d\u5730\u5740\u662f4.<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u7f16\u5199\u6c47\u7f16\u4ee3\u7801<\/strong>\uff1a\u4f7f\u7528SETB\u6307\u4ee4\u6765\u8bbe\u7f6e\u76ee\u6807\u4f4d\u3002\u4f8b\u5982\uff0c\u8981\u5c06PSW\u7684\u7b2c4\u4f4d\u8bbe\u7f6e\u4e3a1.\u53ef\u4ee5\u7f16\u5199\u5982\u4e0b\u6c47\u7f16\u4ee3\u7801\uff1a<\/p>\n\n\n\n<p>\u3000\u3000SETB PSW.4<\/p>\n\n\n\n<p>\u3000\u3000\u8fd9\u6761\u6307\u4ee4\u4f1a\u5c06PSW\u5bc4\u5b58\u5668\u7684\u7b2c4\u4f4d\u7f6e\u4f4d\u4e3a1.\u540c\u65f6\u4fdd\u6301\u5176\u4ed6\u4f4d\u4e0d\u53d8\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u5904\u7406\u591a\u4e2a\u4f4d<\/strong>\uff1a\u5982\u679c\u9700\u8981\u8bbe\u7f6e\u591a\u4e2a\u4f4d\u4e3a1.\u53ef\u4ee5\u901a\u8fc7\u7ec4\u5408\u591a\u4e2aSETB\u6307\u4ee4\u6765\u5b9e\u73b0\u3002\u4f8b\u5982\uff0c\u8981\u540c\u65f6\u8bbe\u7f6ePSW\u7684\u7b2c4\u4f4d\u548c\u7b2c5\u4f4d\u4e3a1.\u53ef\u4ee5\u7f16\u5199\u5982\u4e0b\u4ee3\u7801\uff1a<\/p>\n\n\n\n<p>\u3000\u3000SETB PSW.4<\/p>\n\n\n\n<p>\u3000\u3000SETB PSW.5<\/p>\n\n\n\n<p>\u3000\u3000\u8fd9\u6837\u53ef\u4ee5\u786e\u4fdd\u76ee\u6807\u5bc4\u5b58\u5668\u4e2d\u7684\u591a\u4e2a\u4f4d\u90fd\u88ab\u7f6e\u4f4d\u4e3a1.<\/p>\n\n\n\n<p>\u3000\u3000<strong>\u6ce8\u610f\u4e8b\u9879<\/strong>\uff1a\u5728\u4f7f\u7528SETB\u6307\u4ee4\u65f6\uff0c\u9700\u8981\u6ce8\u610f\u4e0d\u8981\u5f71\u54cd\u5230\u5176\u4ed6\u4e0d\u9700\u8981\u7f6e\u4f4d\u7684\u4f4d\u3002\u53ef\u4ee5\u901a\u8fc7\u9010\u4f4d\u68c0\u67e5\u548c\u8bbe\u7f6e\u7684\u65b9\u5f0f\u6765\u907f\u514d\u610f\u5916\u4fee\u6539\u5176\u4ed6\u4f4d\u3002<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u4e09\u3001 \u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cSETB\u6307\u4ee4\u5728\u5b9a\u65f6\/\u8ba1\u6570\u5668\u4e2d\u65ad\u7ba1\u7406\u4e2d\u7684\u5177\u4f53\u4f5c\u7528\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000\u5728\u5b9e\u9645\u5e94\u7528\u4e2d\uff0cSETB\u6307\u4ee4\u5728\u5b9a\u65f6\/\u8ba1\u6570\u5668\u4e2d\u65ad\u7ba1\u7406\u4e2d\u7684\u5177\u4f53\u4f5c\u7528\u5982\u4e0b\uff1a<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u3000\u3000<strong>\u5f00\u542f\u5b9a\u65f6\/\u8ba1\u6570\u5668\u4e2d\u65ad\u5141\u8bb8<\/strong>\uff1aSETB\u6307\u4ee4\u7528\u4e8e\u5c06\u7279\u5b9a\u5bc4\u5b58\u5668\u7684\u4f4d\u8bbe\u7f6e\u4e3a1.\u4f8b\u5982\uff0cSETB ET0\u547d\u4ee4\u4f1a\u5c06\u5b9a\u65f6\/\u8ba1\u6570\u56680\u7684\u4e2d\u65ad\u5141\u8bb8\u4f4d(ET0)\u8bbe\u7f6e\u4e3a1.\u4ece\u800c\u4f7f\u5355\u7247\u673a\u80fd\u591f\u54cd\u5e94\u5b9a\u65f6\/\u8ba1\u6570\u56680\u7684\u6ea2\u51fa\u4e2d\u65ad\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u542f\u52a8\u5b9a\u65f6\/\u8ba1\u6570\u5668\u8fd0\u884c<\/strong>\uff1a\u9664\u4e86\u5f00\u542f\u4e2d\u65ad\u5141\u8bb8\u5916\uff0c\u8fd8\u9700\u8981\u542f\u52a8\u5b9a\u65f6\/\u8ba1\u6570\u5668\u7684\u8fd0\u884c\u3002\u4f8b\u5982\uff0cSETB TR0\u547d\u4ee4\u4f1a\u542f\u52a8\u5b9a\u65f6\/\u8ba1\u6570\u56680\u7684\u8fd0\u884c\u3002<\/li>\n\n\n\n<li>\u3000\u3000<strong>\u603b\u4e2d\u65ad\u5141\u8bb8<\/strong>\uff1a\u5728\u67d0\u4e9b\u60c5\u51b5\u4e0b\uff0c\u8fd8\u9700\u8981\u5f00\u542f\u603b\u4e2d\u65ad\u5141\u8bb8\uff0c\u4ee5\u786e\u4fdd\u5355\u7247\u673a\u53ef\u4ee5\u54cd\u5e94\u6240\u6709\u4e2d\u65ad\u3002\u4f8b\u5982\uff0cSETB EA\u547d\u4ee4\u4f1a\u5f00\u542f\u603b\u4e2d\u65ad\u5141\u8bb8\u3002<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">\u3000\u3000\u56db\u3001 SETB\u6307\u4ee4\u4e0e\u5176\u4ed6\u4f4d\u64cd\u4f5c\u6307\u4ee4(\u5982AND\u3001OR)\u7684\u533a\u522b\u548c\u8054\u7cfb\u662f\u4ec0\u4e48?<\/h2>\n\n\n\n<p>\u3000\u3000SETB\u6307\u4ee4\u4e0e\u5176\u4ed6\u4f4d\u64cd\u4f5c\u6307\u4ee4(\u5982AND\u3001OR)\u7684\u4e3b\u8981\u533a\u522b\u548c\u8054\u7cfb\u5982\u4e0b\uff1a<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30001.&nbsp;<strong>\u529f\u80fd\u5dee\u5f02<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000<strong>SETB<\/strong>\uff1a\u4e3b\u8981\u7528\u4e8e\u5c06\u6307\u5b9a\u5bc4\u5b58\u5668\u6216\u4f4d\u7684\u503c\u7f6e\u4e3a1.\u4f8b\u5982\uff0cSETB bit\u4f1a\u5c06\u76f4\u63a5\u5bfb\u5740\u7684\u4f4dbit\u7684\u503c\u7f6e\u4e3a1.<\/p>\n\n\n\n<p>\u3000\u3000<strong>AND<\/strong>\uff1a\u7528\u4e8e\u5bf9\u4e24\u4e2a\u64cd\u4f5c\u6570\u8fdb\u884c\u6309\u4f4d\u4e0e\u8fd0\u7b97\uff0c\u7ed3\u679c\u662f\u4e24\u4e2a\u64cd\u4f5c\u6570\u5bf9\u5e94\u4f4d\u7684\u903b\u8f91\u4e0e\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>OR<\/strong>\uff1a\u7528\u4e8e\u5bf9\u4e24\u4e2a\u64cd\u4f5c\u6570\u8fdb\u884c\u6309\u4f4d\u6216\u8fd0\u7b97\uff0c\u7ed3\u679c\u662f\u4e24\u4e2a\u64cd\u4f5c\u6570\u5bf9\u5e94\u4f4d\u7684\u903b\u8f91\u6216\u3002<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">\u3000\u30002.&nbsp;<strong>\u64cd\u4f5c\u5bf9\u8c61<\/strong>\uff1a<\/h3>\n\n\n\n<p>\u3000\u3000<strong>SETB<\/strong>\uff1a\u53ea\u80fd\u5bf9\u5355\u4e2a\u4f4d\u6216\u5b57\u8282\u8fdb\u884c\u64cd\u4f5c\uff0c\u4e0d\u80fd\u5bf9\u5b57\u8282\u8fdb\u884c\u6574\u4f53\u64cd\u4f5c\u3002<\/p>\n\n\n\n<p>\u3000\u3000<strong>AND<\/strong>\u548c<strong>OR<\/strong>\uff1a\u53ef\u4ee5\u5bf9\u5b57\u8282\u6216\u66f4\u9ad8\u7ea7\u522b\u7684\u6570\u636e\u8fdb\u884c\u64cd\u4f5c\uff0c\u5177\u4f53\u53d6\u51b3\u4e8e\u4f7f\u7528\u7684\u5bc4\u5b58\u5668\u6216\u5185\u5b58\u533a\u57df\u3002<\/p>\n\n\n\n<h3 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