{"id":76,"date":"2021-07-10T18:00:25","date_gmt":"2021-07-10T10:00:25","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/hb\/?p=76"},"modified":"2021-07-12T15:18:18","modified_gmt":"2021-07-12T07:18:18","slug":"%e6%b1%87%e7%bc%96-%e5%be%aa%e7%8e%af%e6%8c%87%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/hb\/post-76.html","title":{"rendered":"\u6c47\u7f16 \u5faa\u73af\u6307\u4ee4"},"content":{"rendered":"\n

\u6c47\u7f16\u4e2d\uff0c\u6267\u884c\u5faa\u73af\u8bed\u53e5\uff0c\u4f7f\u7528\u7684\u662floop\u6307\u4ee4\uff0c\u8bed\u6cd5<\/p>\n\n\n\n

loop \u6807\u53f7<\/code><\/pre>\n\n\n\n
\u6807\u53f7\u662f\u4e00\u4e2a\u7279\u6b8a\u8bed\u6cd5\u7684\u7b26\u53f7\uff0c\u4f8b\u5982<\/p>\n\n\n\n
start:<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u7684start\u662f\u4e00\u4e2a\u6807\u53f7\uff0c\u5b83\u7531\u4e00\u4e2a\u5355\u8bcd\uff0c\u52a0\u5192\u53f7\u7ec4\u6210<\/p>\n\n\n\n
\u5728\u6bcf\u6b21\u6267\u884cloop\u4e2d\u7684\u5185\u5bb9\u65f6\uff0c\u4f1a\u5148\u6267\u884ccx = cx-1\uff0c\u5373cx\u662f\u5185\u7f6e\u7684\u6b21\u6570\u63a7\u5236<\/p>\n\n\n\n
\u5faa\u73af\u6307\u4ee4\u5b9e\u4f8b<\/h2>\n\n\n\n
\u4efb\u52a11\uff1a\u5229\u7528\u52a0\u6cd5\u5b9e\u73b02^2\uff0c\u7ed3\u679c\u653e\u5728ax\u4e2d<\/p>\n\n\n\n
assume cs:code\ncode segment\n    mov ax, 2\n    mov ax, ax\n\n    mov ax, 4c00h\n    int 21h\ncode ends\nend<\/code><\/pre>\n\n\n\n
\u4efb\u52a12\uff1a\u5229\u7528\u52a0\u6cd5\u5b9e\u73b02^3\uff0c\u7ed3\u679c\u653e\u5728ax\u4e2d<\/p>\n\n\n\n
assume cs:code\ncode segment\n    mov ax, 2\n    mov ax, ax\n    mov ax, ax\n\n    mov ax, 4c00h\n    int 21h\ncode ends\nend<\/code><\/pre>\n\n\n\n
\u4efb\u52a13\uff1a\u5229\u7528\u52a0\u6cd5\u5b9e\u73b02^12\uff0c\u7ed3\u679c\u653e\u5728ax\u4e2d<\/p>\n\n\n\n
\u7531\u4e8e\u91cd\u590d\u592a\u591a\uff0c\u8fd9\u91cc\u4f7f\u7528loop\uff0ccs\u63a7\u5236\u5faa\u73af\u6b21\u6570\uff0c\u5c3d\u91cf\u4e0d\u8981\u5728loop\u4e2d\u6539\u53d8cx\u7684\u503c\uff0ccx\u7684\u503c\u662f\u591a\u5c11\u5c31\u5faa\u73af\u591a\u5c11\u6b21<\/p>\n\n\n\n
assume cs:code\ncode segment\n\nstart: mov ax,2\n    mov cx, 11\ns: add ax, ax\n   loop s\n\n   mov ax, 4c00h\n   int 21h\n\ncode ends\nend start<\/code><\/pre>\n\n\n\n
\u5982\u679c\u7ee7\u7eed\u589e\u52a0\u5faa\u73af\u6b21\u6570\uff0c \u6570\u636e\u662f\u5426\u4f1a\u8d85\u51faax\u5b58\u50a8\u8303\u56f4\uff1f<\/p>\n\n\n\n
\u6c47\u7f16\u7684\u663e\u793a\u529f\u80fd<\/h2>\n\n\n\n
\u8fd9\u91cc\u4ec5\u7c97\u7565\u4ecb\u7ecd\u663e\u793a\u529f\u80fd\uff0c\u5e76\u4e0d\u8be6\u7ec6\u4ecb\u7ecd\u4e2d\u65ad<\/p>\n\n\n\n
\u4e0e\u7a0b\u5e8f\u7684\u9000\u51fa\u4ee3\u7801\u76f8\u4f3c<\/p>\n\n\n\n
lea dx, ds:[0]   ; \u76f8\u5f53\u4e8e mov dx, 0\nmov ah, 09h\nint 21h<\/code><\/pre>\n\n\n\n
\u5728\u8fd9\u91cc\uff0c\u5b9e\u9645\u8d77\u4f5c\u7528\u7684\u662f\u540e2\u53e5\uff0cmov ah, 09h\uff0c\u4e5f\u53ef\u4ee5\u5199\u6210mov ax, 0900h\u7b49<\/p>\n\n\n\n
09\u53f7\u529f\u80fd\u4f1a\u5c06dx\u7684\u5730\u5740\u6240\u6307\u5411\u7684\u6570\u636e\u663e\u793a\u51fa\u6765\uff08\u663e\u793a\u5b57\u7b26\u4e32\uff09\uff0c\u524d\u4e00\u53e5lea\u662f\u5c06ds\u76840\u504f\u79fb\u5730\u5740\u7ed9dx( \u5176\u5b9e\u8fd9\u91cc\u53ef\u4ee5\u76f4\u63a5\u7528 mov dx, 0)<\/p>\n\n\n\n
\u9664\u4e86\u8d77\u59cb\u5730\u5740\uff0c\u5728\u663e\u793a\u65f6\uff0c\u9700\u8981\u4e00\u4e2a\u7ec8\u6b62\u7b26\u53f7\uff0c\u5426\u5219\u53ef\u80fd\u663e\u793a\u4e00\u4e9b\u65e0\u7528\u7684\u4e71\u7801\uff0c\u7ec8\u6b62\u7b26\u53f7\u4e3a\uff1a$, \u5b83\u768416\u8fdb\u5236\u4e3a24h<\/p>\n\n\n\n
\u5728\u663e\u793a\u65f6\uff0c\u4ee5\u5b57\u8282\u4e3a\u5355\u4f4d\uff0c\u4e14\u539f\u5c01\u4e0d\u52a8\u7ffb\u8bd1ASCII\u5b57\u7b26\u96c6<\/p>\n\n\n\n
\u663e\u793a2^3\u7684\u6570\u636e\u5728\u5c4f\u5e55<\/strong><\/p>\n\n\n\n
code segment\n    assume cs:code\nstart: \n    mov ax,2\n    mov cx, 2         ; \u7ed3\u679c\u4e0d\u8981\u5927\u4e8e9\n    s: \n        add ax, ax\n        loop s\n    add ax,30h        ; \u628a\u6570\u5b57\u8f6c\u5316\u4e3aASCII\u5bf9\u5e94\u7684\u7f16\u7801\n    mov ds:[0], ax\n    mov ax, 24h\n    mov ds:[1], ax    ; \u7ec8\u6b62\u7b26\u53f7\n\n    lea dx, ds:[0]\n\n    mov ah, 09h\n    int 21h\n   \n    mov ax, 4c00h\n    int 21h\n\ncode ends\nend start<\/code><\/pre>\n\n\n\n
\u4e0a\u8ff0\u4ee3\u7801\u4ec5\u80fd\u663e\u793a\u4e00\u4e2a\u5b57\u8282\uff0c\u90a3\u4e48\u8d85\u8fc710\u5462\uff1f\u662f\u5426\u5e94\u8be5\u8981\u591a\u4e2a\u5b57\u8282\u663e\u793a\uff1f\u5982\u4f55\u663e\u793a\uff1f<\/p>\n","protected":false},"excerpt":{"rendered":"
\u6c47\u7f16\u4e2d\uff0c\u6267\u884c\u5faa\u73af\u8bed\u53e5\uff0c\u4f7f\u7528\u7684\u662floop\u6307\u4ee4\uff0c\u8bed\u6cd5 \u6807\u53f7\u662f\u4e00\u4e2a\u7279\u6b8a\u8bed\u6cd5\u7684\u7b26\u53f7\uff0c\u4f8b\u5982 \u8fd9\u91cc\u7684start\u662f\u4e00\u4e2a\u6807\u53f7\uff0c… \u7ee7\u7eed\u9605\u8bfb \u6c47\u7f16 \u5faa\u73af\u6307\u4ee4<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[4],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/76"}],"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=76"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/76\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/media?parent=76"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/categories?post=76"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/tags?post=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}