{"id":87,"date":"2021-07-11T17:37:38","date_gmt":"2021-07-11T09:37:38","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/hb\/?p=87"},"modified":"2021-07-11T23:29:46","modified_gmt":"2021-07-11T15:29:46","slug":"%e6%b1%87%e7%bc%96-%e5%8f%98%e5%9d%80%e5%af%84%e5%ad%98%e5%99%a8","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/hb\/post-87.html","title":{"rendered":"\u6c47\u7f16 \u53d8\u5740\u5bc4\u5b58\u5668"},"content":{"rendered":"\n<p>\u6c47\u7f16\u4e2d\u7684\u53d8\u5740\u5bc4\u5b58\u5668\uff0c\u6307\u7684\u662f<\/p>\n\n\n\n<ul><li>si ==\u300b \u6e90\u53d8\u5740\u5bc4\u5b58\u5668<\/li><li>di ==\u300b \u76ee\u6807\u53d8\u5740\u5bc4\u5b58\u5668<\/li><\/ul>\n\n\n\n<h2>\u53d8\u5740\u5bc4\u5b58\u5668\u5b9e\u4f8b<\/h2>\n\n\n\n<p>\u4f8b\u5982\uff0c\u4f7f\u7528si\u548cdi\u8fdb\u884c\u5b57\u7b26\u4e32\u7684\u590d\u5236<\/p>\n\n\n\n<p>\u9996\u5148\u4f7f\u7528ds:si\u6307\u5411\u8981\u590d\u5236\u7684\u539f\u59cb\u5b57\u7b26\u4e32\uff0c\u7528ds:di\u6307\u5411\u590d\u5236\u7684\u76ee\u7684\u7a7a\u95f4\uff0c\u5e76\u4f7f\u7528\u4e00\u4e2a\u5faa\u73af\u5b8c\u6210\u590d\u5236<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>data segment\n    db 'abcddcba'\ndata ends\n\ncode segment\n    assume cs:code, ds:data\nstart:\n    mov ax, data\n    mov ds, ax              ; \u628ads\u6307\u5411data\n    mov si, 0               ; \u6e90\u5b57\u7b26\u4e32\u8d77\u59cb0\n    mov di, 8               ; \u76ee\u6807\u5b57\u7b26\u4e32\u8d77\u59cb8\n    mov cx, 8               ; \u5faa\u73af8\u6b21\n    s:\n        mov al, &#91;si]\n        mov &#91;di], al\n        inc si\n        inc di\n        loop s\n    mov ax, 24H\n    mov ds:&#91;16], ax      ; \u7ed3\u675f\u6807\u8bb0\u4e3a$\uff0cASCII\u4e3a24h\n    lea dx, ds:&#91;0]\n    mov ah, 9h\n    int 21h\n    mov ax, 4c00h\n    int 21h\ncode ends\nend start<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u91cc\uff0c si\u548cdi\u662f\u4e24\u4e2a\u8f85\u52a9\u7684\u5bc4\u5b58\u5668\uff0c\u53ef\u4ee5\u8ba9\u4ee3\u7801\u770b\u8d77\u6765\u66f4\u6e05\u6670<\/p>\n\n\n\n<p>\u5728\u76f8\u5bf9\u5bfb\u5740\u65f6\uff0c\u4e0d\u5355\u53ef\u4ee5[bx]\uff0c\u8fd8\u53ef\u4ee5[bx+idata]\uff0c\u4ee5\u53ca<\/p>\n\n\n\n<ul><li>[bx+si]<\/li><li>[bx+si+idata]<\/li><\/ul>\n\n\n\n<p>\u8fd9\u91cc\u7684idata\u8868\u793a\u5e38\u91cf\uff0c[bx+idata]\u8868\u793a\u5bc4\u5b58\u5668+\u5e38\u91cf\uff0c\u800c[bx+si]\u8868\u793a\u4e24\u4e2a\u5bc4\u5b58\u5668\uff0c\u6700\u540e\u4e00\u4e2a\u8868\u793a\u5bc4\u5b58\u5668+\u5bc4\u5b58\u5668+\u5e38\u91cf\u65b9\u5f0f\u8fdb\u884c\u53d8\u5740\u5bfb\u5740<\/p>\n\n\n\n<p>\u8fd9\u91cc\u7684bx\uff0c\u4e0d\u80fd\u6362\u4e3aax\uff0c\u800csi\u53ef\u4ee5\u6362\u4e3adi\uff0c\u56e0\u4e3a\u901a\u7528\u5bc4\u5b58\u5668\u4e2d\u76f8\u5bf9\u5bfb\u5740\u4ec5\u80fdbx\uff0c\u800csi\u548cdi\u5747\u4e3a\u53d8\u5740\u5bc4\u5b58\u5668\uff0c\u53e6\u5916\u8fd8\u53ef\u4ee5\u4f7f\u7528\u7684\u6709bp\u5bc4\u5b58\u5668\uff0c\u660e\u786e\u4e0d\u80fd\u7528\u7684ax, cx, dx, ds, \u800c\u80fd\u4f7f\u7528\u7684\u7ec4\u5408\u5bc4\u5b58\u5668\u5219\u4ec5\u6709\u4ee5\u4e0b4\u4e2a\uff0c\u5426\u5219\u4e5f\u4f1a\u62a5\u9519<\/p>\n\n\n\n<ul><li>bx \u548c si<\/li><li>bx \u548c di<\/li><li>bp \u548c si<\/li><li>bp \u548c di<\/li><\/ul>\n\n\n\n<p>bp\u4e0d\u6307\u5b9a\u5bc4\u5b58\u5668\u65f6\uff0c\u9ed8\u8ba4\u8ddf\u7740ss\uff0c\u800c\u4e0d\u662fds<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6c47\u7f16\u4e2d\u7684\u53d8\u5740\u5bc4\u5b58\u5668\uff0c\u6307\u7684\u662f si ==\u300b \u6e90\u53d8\u5740\u5bc4\u5b58\u5668 di ==\u300b \u76ee\u6807\u53d8\u5740\u5bc4\u5b58\u5668 \u53d8\u5740\u5bc4\u5b58\u5668\u5b9e\u4f8b \u4f8b\u5982\uff0c\u4f7f&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/hb\/post-87.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u6c47\u7f16 \u53d8\u5740\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":[4],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/87"}],"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=87"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/87\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/media?parent=87"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/categories?post=87"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/tags?post=87"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}