{"id":77,"date":"2021-07-10T20:09:00","date_gmt":"2021-07-10T12:09:00","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/hb\/?p=77"},"modified":"2021-07-11T23:08:04","modified_gmt":"2021-07-11T15:08:04","slug":"%e6%b1%87%e7%bc%96-dw%ef%bc%8cdb","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/hb\/post-77.html","title":{"rendered":"\u6c47\u7f16 dw\uff0cdb"},"content":{"rendered":"\n

\u5728\u6c47\u7f16\u4e2d\uff0cdw\u662f\u4e00\u4e2a\u4f2a\u6307\u4ee4\uff0c\u89e3\u91ca\u4e3a defind word\uff0c\u5b9a\u4e49\u5b57\u578b\u6570\u636e\uff0c\u4f8b\u5982<\/p>\n\n\n\n

dw 0123h, 0456h, 0789h, 0abch, 0defh, 0fedh, 0cbah, 0987h<\/code><\/pre>\n\n\n\n
dw\u5b9a\u4e49\u7684\u591a\u4e2a\u5b57\u578b\u6570\u636e\u4e2d\u95f4\u9017\u53f7\u9694\u5f00\uff0c\u5b83\u4eec\u6240\u5360\u7684\u5185\u5b58\u7a7a\u95f4\u5206\u522b\u4e3a16\u4e2a\u4e8c\u8fdb\u5236\u4f4d<\/p>\n\n\n\n
\u4e0edw\u76f8\u4f3c\u7684\uff0cdb\uff0c\u5373\u5b9a\u4e49\u5b57\u8282\u578b\u6570\u636e\uff0c\u53608\u4e2a\u4e8c\u8fdb\u5236\u4f4d<\/p>\n\n\n\n
\u5728\u4ee3\u7801\u6bb5\u4f7f\u7528\u6570\u636e<\/h2>\n\n\n\n
\u524d\u9762\u5b66\u4e60\u4e86\u4ee3\u7801\u6bb5\uff0c\u5728\u4ee3\u7801\u6bb5\u4f7f\u7528\u6570\u636e\u5b9e\u4f8b, \u628a8\u4e2a\u6570\u636e\u76f8\u52a0\u5230ax\u4e2d<\/p>\n\n\n\n
\u5728\u5b9a\u4e49\u65f6\uff0c\u8fd98\u4e2a\u7531\u4e8e\u524d\u9762\u6ca1\u6709\u6307\u4ee4\uff0c\u8fd98\u4e2a\u6570\u636e\u4f1a\u5b58\u50a8\u5728cs\u6bb5\uff0c\u504f\u79fb\u4e3a0\uff0c2\uff0c4\uff0c…<\/p>\n\n\n\n
code segment\n    assume cs:code\nstart:\n    dw 0123h, 0456h, 0789h, 0abch, 0defh, 0fedh, 0cbah, 0987h\n    mov bx, 0\n    mov ax, 0\n    mov cx, 8\n    s:\n        add ax, cs:[bx]\n        add bx, 2\n        loop s\n    mov ax, 4c00h\n    int 21h\ncode ends\nend start<\/code><\/pre>\n\n\n\n
\u8fd9\u91cc\u7684cs:[bx]\u662f\u95f4\u63a5\u5bfb\u5740\uff0c\u5982\u679c[bx]\u524d\u6ca1\u6709\u5bc4\u5b58\u5668\u540d\u79f0\uff0c\u9ed8\u8ba4\u4e3ads<\/p>\n\n\n\n
\u7f16\u8bd1\u8fde\u63a5\uff0c\u5e76\u8c03\u8bd5\u8be5\u7a0b\u5e8f\uff0c\u8f93\u5165r\u6307\u4ee4\uff0c\u4f60\u4f1a\u53d1\u73b0\u7b2c\u4e00\u6761\u547d\u4ee4\u5e76\u4e0d\u662fmov bx, 0<\/p>\n\n\n\n
\u5728\u8fd9\u4e2a\u7a0b\u5e8f\u4e2d\uff0ccs\u4e2d\u5b58\u4e0b\u4e86\u4e00\u4e9b\u6570\u636e\uff0c\u4f46\u5bf9\u6c47\u7f16\u7a0b\u5e8f\u6765\u8bf4\uff0c\u5b83\u603b\u4f1a\u628a\u6307\u5411cs\u4e2d\u7684\u6570\u636e\u5f53\u6210\u6307\u4ee4\uff0c\u6240\u4ee5\u5f53\u4f60\u5b58\u4e0b\u4e00\u4e9b\u6570\u636e\u65f6\uff0c\u6570\u636e\u4f1a\u88ab\u201d\u9519\u8bef\u201c\u7684\u89e3\u6790\u4e3a\u6307\u4ee4<\/p>\n\n\n\n
\u5982\u679c\u6211\u4eec\u628astart\u7684\u4f4d\u7f6e\uff0c\u6539\u5728\u5b9a\u4e49\u6570\u636e\u4e4b\u540e<\/strong>\uff0c\u6211\u4eec\u518d\u6b21\u7f16\u8bd1<\/strong>\uff0c\u4f1a\u53d1\u73b0\u7b2c\u4e00\u6761\u6307\u4ee4\u5df2\u7ecf\u53d8\u4e3a\u6b63\u786e\u7684mov bx, 0<\/p>\n\n\n\n
\u53ef\u4ee5\u53d1\u73b0\u5728\u4ee3\u7801\u6bb5\u4e2d\u4f7f\u7528\u6570\u636e\uff0c\u4e0d\u591f\u89c4\u8303\uff0c\u6211\u4eec\u5e94\u8be5\u5b9a\u4e49\u591a\u4e2a\u6bb5\uff0c\u5404\u81ea\u505a\u5404\u81ea\u7684\u4e8b\u60c5\uff0c\u4ee3\u7801\u6bb5\u6267\u884c\u4ee3\u7801\uff0c\u6570\u636e\u6bb5\u4fdd\u5b58\u6570\u636e<\/p>\n\n\n\n
\u6c47\u7f16\u591a\u4e2a\u6570\u636e\u6bb5<\/h2>\n\n\n\n
\u7f16\u5199\u4ee3\u7801\uff0c\u4ee5\u4e0b\u5b9e\u4f8b\u4f7f\u7528\u4e86\u591a\u4e2a\u6bb5<\/p>\n\n\n\n
assume cs:code, ds:data, ss:stack\n\ndata segment\n    dw 0123h, 0456h, 0789h, 0abch, 0defh, 0fedh, 0cbah, 0987h\ndata ends\n\nstack segment\n    dw 0, 0, 0, 0, 0, 0, 0, 0\nstack ends\n\ncode segment\n\nstart:  \n        mov ax, stack\n        mov ss, ax\n        mov sp, 16\n        mov ax, data\n        mov ds, ax\n        push ds:[0]\n        push ds:[2]\n        pop ds:[2]\n        pop ds:[0]\n\n        mov ax, 4c00h\n        int 21h\ncode ends\nend start<\/code><\/pre>\n\n\n\n
\u5728\u7f16\u8bd1\uff0c\u8fde\u63a5\u540e\uff0c\u4f7f\u7528debug\u8c03\u8bd5\u7a0b\u5e8f\uff0c\u4f1a\u53d1\u73b0\uff0ccs\u6bb5\u6bd4ds\u6bb5\u5730\u5740\u5927256\uff08\u621616\u7684\u500d\u6570\uff09\uff0c\u800cds\u6bb5\u6bd4ss\u6bb5\u5185\u5b58\u5730\u5740\u5927256\uff0c\u7cfb\u7edf\u4f1a\u81ea\u52a8\u5206\u914d\u8db3\u591f\u5927\u5c0f\u7684\u5185\u5b58\u7ed9\u6bcf\u4e2a\u6bb5<\/p>\n\n\n\n
\u5982\u679c\u4e00\u4e2a\u6bb5\u4e2d\u7684\u6570\u636e\u5360N\u4e2a\u5b57\u8282\uff0c\u5219\u7a0b\u5e8f\u52a0\u8f7d\u540e\uff0c\u8be5\u6bb5\u5b9e\u9645\u5360\u6709\u7684\u7a7a\u95f4\u4e3a<\/p>\n\n\n\n
16*(16\/N+1)<\/code><\/pre>\n\n\n\n
\u5728\u4f7f\u7528\u591a\u4e2a\u6bb5\u65f6\uff0c\u5982\u679c\u6ca1\u6709\u6307\u5b9a\u5165\u53e3\u5730\u5740\uff0c\u5219\u9ed8\u8ba4\u4f1a\u4ece\u7b2c\u4e00\u4e2a\u6307\u4ee4\u5f00\u59cb\uff0c\u90a3\u4e48cs\u5e94\u8be5\u653e\u5728\u6700\u524d\u9762\uff0cds\uff0css\u5219\u5e94\u8be5\u653e\u5728cs\u540e( \u5f3a\u70c8\u5efa\u8bae\u5199start\uff0c\u5426\u5219\u4f9d\u7136\u5bb9\u6613\u62a5\u9519\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u6c47\u7f16\u4e2d\uff0cdw\u662f\u4e00\u4e2a\u4f2a\u6307\u4ee4\uff0c\u89e3\u91ca\u4e3a defind word\uff0c\u5b9a\u4e49\u5b57\u578b\u6570\u636e\uff0c\u4f8b\u5982 dw\u5b9a\u4e49\u7684\u591a\u4e2a\u5b57\u578b\u6570\u636e\u4e2d\u95f4\u9017\u53f7… \u7ee7\u7eed\u9605\u8bfb \u6c47\u7f16 dw\uff0cdb<\/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\/77"}],"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=77"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/77\/revisions"}],"predecessor-version":[{"id":98,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/77\/revisions\/98"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/media?parent=77"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/categories?post=77"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/tags?post=77"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}