{"id":50,"date":"2021-05-19T00:24:45","date_gmt":"2021-05-18T16:24:45","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/hb\/?p=50"},"modified":"2021-07-11T21:01:10","modified_gmt":"2021-07-11T13:01:10","slug":"%e8%ae%a4%e8%af%86%e6%ae%b5%e5%af%84%e5%ad%98%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/hb\/post-50.html","title":{"rendered":"\u6c47\u7f16 \u6bb5\u5bc4\u5b58\u5668"},"content":{"rendered":"\n

\u6bb5\u4e0e\u6bb5\u5bc4\u5b58\u5668<\/h2>\n\n\n\n

\u9996\u5148\u4e86\u89e3\u4ec0\u4e48\u662f\u6bb5?<\/strong><\/p>\n\n\n\n

\u5185\u5b58\u662f\u8fde\u7eed\u7684, \u5e76\u4e0d\u5206\u6bb5, <\/p>\n\n\n\n

\u6bb5\u7684\u5212\u5206\u6765\u81eaCPU, \u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5206\u6bb5\u65b9\u5f0f\u7ba1\u7406\u5185\u5b58.<\/p>\n\n\n\n

\u6bb5\u5bc4\u5b58\u5668\u6709\u54ea\u4e9b?<\/strong><\/p>\n\n\n\n

8086CPU\u4e2d, \u67094\u4e2a\u6bb5\u5bc4\u5b58\u5668, \u5f53CPU\u8981\u8bbf\u95ee\u5185\u5b58\u65f6, \u7531\u8fd94\u4e2a\u6bb5\u5bc4\u5b58\u5668\u63d0\u4f9b\u5185\u5b58\u5355\u5143\u7684\u6bb5\u5730\u5740<\/p>\n\n\n\n

  1. CS –> \u4ee3\u7801\u6bb5\u5bc4\u5b58\u5668<\/li>
  2. DS –> \u6570\u636e\u6bb5\u5bc4\u5b58\u5668<\/li>
  3. SS –> \u5806\u6808\u6bb5\u5bc4\u5b58\u5668<\/li>
  4. ES –> \u9644\u52a0(\u8f85\u52a9)\u6bb5\u5bc4\u5b58\u5668<\/li><\/ol>\n\n\n\n

    \u6b64\u5916, \u4e00\u4e2a\u5f88\u91cd\u8981\u7684\u5bc4\u5b58\u5668\u662f IP, \u5b83\u662f \u6307\u4ee4\u6307\u9488\u5bc4\u5b58\u5668<\/code><\/p>\n\n\n\n

    8086CPU\u8bfb\u53d6\u548c\u6267\u884c\u7684\u8fc7\u7a0b<\/strong><\/p>\n\n\n\n

    \u5047\u8bbeCS\u6bb5\u5b58\u50a8\u7684\u662f mov ax, 0123H<\/p>\n\n\n\n

    1. \u7531CS\u548cIP\u4e24\u4e2a\u5730\u5740\u9001\u5165\u5730\u5740\u52a0\u6cd5\u5668<\/code>\u5408\u6210\u4e00\u4e2a20\u4f4d\u7684\u7269\u7406\u5730\u5740<\/li>
    2. \u901a\u8fc7\u8f93\u5165\u8f93\u51fa\u63a7\u5236\u7535\u8def, \u901a\u8fc720\u4f4d\u7684\u5730\u5740\u603b\u7ebf\u8f93\u51fa, \u7d22\u5f15\u5230\u5185\u5b58\u5730\u5740<\/li>
    3. \u8fd9\u91cc\u7684\u5185\u5b58\u5730\u5740, \u662f\u6307CS, \u5373\u4ee3\u7801\u6bb5\u5bc4\u5b58\u5668, \u5728cs\u6240\u5728\u5185\u5b58\u5730\u5740\u4e2d\u53d6\u5230\u4e86\u5185\u5b58\u6570\u636e<\/li>
    4. \u901a\u8fc7\u8f93\u5165\u8f93\u51fa\u8bbe\u5907, \u628a\u6570\u636e\u8f93\u5165\u5230\u6307\u4ee4\u7f13\u51b2\u5668<\/strong>, \u6700\u540e\u4f20\u5230\u6267\u884c\u63a7\u5236\u5668<\/li>
    5. \u6267\u884c\u5b8c\u6bd5\u540e ax\u5c31\u662f0123, IP\u4e5f\u4f1a\u504f\u79fb3\u5b58\u50a8\u5355\u5143<\/li><\/ol>\n\n\n\n

      \u8fd9\u91cc\u7684 mov ax, 0123H \u6307\u4ee4, \u5728\u5185\u5b58\u4e2d\u7684\u6570\u636e\u4e3a B8 23 01, \u6240\u4ee5IP\u504f\u79fb3\u4e2a\u5b58\u50a8\u5355\u5143<\/p>\n\n\n\n

      \u5f538086CPU\u52a0\u7535\u6216\u590d\u4f4d\u540e, \u4e5f\u5c31\u662fPC\u542f\u52a8\u65f6, CS\u88ab\u8bbe\u7f6e\u4e3aFFFFH, IP=0000H, \u90a3\u4e48\u5b83\u5c31\u4f1a\u4eceFFFF0H\u5355\u5143\u4e2d\u8bfb\u53d6\u6307\u4ee4\u6267\u884c, \u73b0\u5728\u7684PC\u4e5f\u662f\u8fd9\u4e2a\u539f\u7406, \u8fd9\u4e2a\u4f4d\u7f6e\u662fBIOS\u7684\u4f4d\u7f6e<\/p>\n\n\n\n

      IP\u5728\u6bcf\u6b21\u6267\u884c\u5b8c\u6bd5\u540e, IP\u7684\u503c = IP + \u6267\u884c\u6307\u4ee4\u7684\u957f\u5ea6.<\/p>\n\n\n\n

      \u6307\u4ee4\u7f13\u51b2\u5668\uff0c\u662f\u4e00\u4e2a\u4e34\u65f6\u5b58\u653e\u6307\u4ee4\u7684\u5143\u4ef6\uff0c\u4fdd\u5b58\u5c06\u8981\u6267\u884c(\u53d1\u9001)\u4f46\u6ca1\u6307\u4ee4\u7684\u6307\u4ee4\u3002<\/p>\n\n\n\n

      \u8f6c\u79fb\u6307\u4ee4<\/h2>\n\n\n\n

      \u5728CPU\u4e2d, \u7a0b\u5e8f\u5458\u80fd\u591f\u7528\u6307\u4ee4\u8bfb\u5199\u7684\u90e8\u4ef6\u53ea\u6709\u5bc4\u5b58\u5668, \u901a\u8fc7\u6539\u53d8\u5bc4\u5b58\u5668\u7684\u5185\u5bb9\u5b9e\u73b0\u5bf9CPU\u7684\u63a7\u5236, \u8fd9\u91cc\u6211\u4eec\u901a\u8fc7\u4fee\u6539CS, IP\u7684\u503c\u6765\u63a7\u5236CPU<\/p>\n\n\n\n

      \u4fee\u6539CS, IP\u7684\u503c, \u75318086\u4e13\u95e8\u7684\u6307\u4ee4, \u4e5f\u53eb\u8f6c\u79fb\u6307\u4ee4<\/p>\n\n\n\n

      jmp\u6307\u4ee4\u80fd\u540c\u65f6\u4fee\u6539CS, IP, \u5b83\u7684\u8bed\u6cd5:<\/p>\n\n\n\n

      jmp \u6bb5\u5730\u5740:\u504f\u79fb\u5730\u5740\njmp 2AE3:3\njmp 3:0B16<\/code><\/pre>\n\n\n\n
      \u4ec5\u4fee\u6539 IP \u7684\u503c, \u4f7f\u7528 jmp \u7ed3\u5408\u67d0\u4e00\u4e2a\u5408\u6cd5\u5bc4\u5b58\u5668<\/p>\n\n\n\n
      mov ax 200\njmp ax (\u7c7b\u4f3c\u4e8e mov IP,ax)\njmp bx<\/code><\/pre>\n\n\n\n
      \u7531CS\u5b58\u653e\u6307\u4ee4\u7684\u6bb5\u5730\u5740, IP\u5b58\u653e\u6307\u4ee4\u7684\u504f\u79fb\u5730\u5740.<\/p>\n\n\n\n
      \u6ce8\u610fdebug\u4e2d\u53ef\u4ee5\u76f4\u63a5\u4fee\u6539cs\u548cip\uff0c\u5e76\u4e0d\u662f\u6c47\u7f16\u6307\u4ee4\uff0c\u5b83\u662fdebug\u6307\u4ee4<\/p>\n\n\n\n
      \u6269\u5c55: \u7531\u4e8e\u5728\u51af\u8bfa\u4f9d\u66fc\u8ba1\u7b97\u673a\u4e2d, \u6570\u636e\u548c\u6307\u4ee4\u662f\u6df7\u5408\u5b58\u653e\u4e8e\u5185\u5b58\u4e2d\u7684, \u4e5f\u5c31\u662f\u8bf4, \u5fc5\u987b\u901a\u8fc7CS\u5bc4\u5b58\u5668CPU\u624d\u8ba4\u4e3a\u662f\u6307\u4ee4\u4ee3\u7801, \u800cDS\u5219\u88ab\u8ba4\u4e3a\u662f\u6570\u636e<\/p>\n","protected":false},"excerpt":{"rendered":"
      \u6bb5\u4e0e\u6bb5\u5bc4\u5b58\u5668 \u9996\u5148\u4e86\u89e3\u4ec0\u4e48\u662f\u6bb5? \u5185\u5b58\u662f\u8fde\u7eed\u7684, \u5e76\u4e0d\u5206\u6bb5, \u6bb5\u7684\u5212\u5206\u6765\u81eaCPU, \u4f7f\u5f97\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u5206\u6bb5\u65b9\u5f0f\u7ba1… \u7ee7\u7eed\u9605\u8bfb \u6c47\u7f16 \u6bb5\u5bc4\u5b58\u5668<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[3],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/50"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/comments?post=50"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/50\/revisions"}],"predecessor-version":[{"id":92,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/50\/revisions\/92"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/media?parent=50"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/categories?post=50"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/tags?post=50"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}