{"id":99,"date":"2021-07-12T01:12:05","date_gmt":"2021-07-11T17:12:05","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/hb\/?p=99"},"modified":"2021-07-12T01:32:32","modified_gmt":"2021-07-11T17:32:32","slug":"%e6%b1%87%e7%bc%96-div%e6%8c%87%e4%bb%a4","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/hb\/post-99.html","title":{"rendered":"\u6c47\u7f16 div\u6307\u4ee4"},"content":{"rendered":"\n<p>div\u6307\u4ee4\u662f\u9664\u6cd5\u6307\u4ee4\uff0c\u5728\u4f7f\u7528div\u6307\u4ee4\u65f6<\/p>\n\n\n\n<ul><li>\u9664\u6570\uff1a8\u4f4d\u6216\u800516\u4f4d\uff0c\u5728\u5bc4\u5b58\u5668\u6216\u5185\u5b58\u5355\u5143\u4e2d<\/li><li>\u88ab\u9664\u6570\uff1a\uff08\u9ed8\u8ba4\uff09\u653e\u5728AX \u6216 DX\u548cAX\u4e2d<\/li><\/ul>\n\n\n\n<p>\u4e3a\u4ec0\u4e48\u8bf4\u6216\uff1f\u5f53\u9664\u6570\u4e3a8\u4f4d\u65f6\uff0c\u88ab\u9664\u6570\u5e94\u8be5\u662f16\u4f4d\u7684\uff0c\u9ed8\u8ba4\u653e\u5728AX\u4e2d\uff0c\u800c\u5f53\u9664\u6570\u4e3a16\u4f4d\uff0c\u5219\u88ab\u9664\u6570\u4e3a32\u4f4d\uff0c\u9ad8\u4f4dDX\uff0c\u4f4e\u4f4dAX<\/p>\n\n\n\n<p>\u5728\u6c47\u7f16\u4e2d\uff0c\u505a\u4e58\u6cd5\u65f6\uff0c\u5b9e\u9645\u662f\u52a0\u6cd5\u6a21\u62df\u7684\uff0c\u800c\u9664\u6cd5\uff0c\u5219\u662f\u4e58\u6cd5\u6a21\u62df\u7684\uff0c\u4f8b\u598238\/6\uff0c\u5b83\u5148\u4f7f\u75286*1\uff0c\u67e5\u770b\u662f\u5426\u7b49\u4e8e38\uff0c\u63a5\u7740\u518d\u52a06\uff0c\u53d1\u73b0\u8fd8\u5c0f\u4e8e38\uff0c\u5219\u8bf4\u660e\u4f59\u6570\u5927\u4e8e6\uff0c\u5411\u4e0a\u53d66*2\uff0c\u76f4\u5230\u6700\u540e\u5f97\u5230\u5546\u4e3a6\uff0c\u4f59\u65702\uff08\u8fd9\u4e2a\u8fc7\u7a0b\u53ea\u662f\u5927\u6982\u63a8\u6d4b\uff0c\u8fd9\u91cc\u4ec5\u8bf4\u660e\u7ed3\u679c\u4f1a\u5f97\u5230\u5546+\u4f59\u6570\uff09<\/p>\n\n\n\n<p>\u5bf9\u4e8ediv\u7684\u7ed3\u679c\uff0c<\/p>\n\n\n\n<ul><li>\u9664\u6570\u4e3a8\u4f4d\uff0c\u5219\u5546\uff08AL\uff09\u4e3a8\u4f4d\uff0c\u4f59\u6570\uff08AH\uff09\u4e3a8\u4f4d<\/li><li>\u9664\u6570\u4e3a16\u4f4d\uff0c\u5219\u5546\uff08AX\uff09\u4e3a16\u4f4d\uff0c\u4f59\u6570\uff08DX\uff09\u4e3a16\u4f4d<\/li><\/ul>\n\n\n\n<p>div\u8bed\u6cd5<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>div reg         ; reg\u8868\u793a\u4e00\u4e2a\u5bc4\u5b58\u5668\uff0c\u4f8b\u5982ax\uff0cbx\ndiv \u5185\u5b58\u5355\u5143<\/code><\/pre>\n\n\n\n<h2>div\u5b9e\u4f8b<\/h2>\n\n\n\n<p><strong>div \u5185\u5b58\u5355\u51438\u4f4d\u5b9e\u4f8b<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>div byte ptr ds:&#91;0]  <\/code><\/pre>\n\n\n\n<p>\u8be5\u6307\u4ee4\uff0c\u4f7f\u7528\u4e86ds:[0]\u4f5c\u4e3a\u5730\u5740\uff0cbyte ptr\u8868\u793a\u53d6\u4e00\u4e2a\u5b57\u8282( 8\u4f4d )\uff0c\u90a3\u4e48\u9664\u6570\u662f8\u4f4d\uff0c\u5219\u9ed8\u8ba4\u7684\u88ab\u9664\u6570\u662fax<\/p>\n\n\n\n<p>\u5219\u5f97\u5230\u7684\u5546\uff0c\u5b58\u653e\u5728al\u4e2d\uff0c\u4f59\u6570\u5b58\u653e\u5728ah\u4e2d<\/p>\n\n\n\n<p><strong>div \u5185\u5b58\u5355\u514316\u4f4d\u5b9e\u4f8b<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>div word ptr es:&#91;0]<\/code><\/pre>\n\n\n\n<p>\u5728\u8fd9\u91cc\uff0c\u4f7f\u7528\u4e86\u9644\u52a0\u6808\u5bc4\u5b58\u5668es\uff0c\u8fd9\u91cc\u7684word ptr\u8868\u793a\u53d6es:[0]\u5904\u7684\u4e00\u4e2a\u5b57\u5355\u5143( 16\u4f4d )\u505a\u9664\u6570\uff0c\u88ab\u9664\u6570\u662f dx*10000H+ax<\/p>\n\n\n\n<p>\u7ed3\u679c\u4e2d\u7684\u5546\u5b58\u653e\u5728ax\u4e2d\uff0c\u4f59\u6570\u5b58\u653e\u5728dx\u4e2d<\/p>\n\n\n\n<p><strong>\u7528\u9664\u6cd5\u6307\u4ee4\u5b8c\u6210100001\/100<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mov dx,1\nmov ax,86A1H;\nmov bx,100\ndiv bx<\/code><\/pre>\n\n\n\n<p>\u8fd9\u91cc\uff0c\u7531\u4e8e100001\u5927\u4e8e2^16-1=65535\uff0c\u8981\u4f7f\u7528ax+dx\u5b58\u50a8\uff0c100001\u8f6c\u6362\u4e3a186A1H\uff0c\u5219dx\u5b58\u50a81\uff0cax\u5b58\u50a886A1H<\/p>\n\n\n\n<p>\u5f97\u5230\u7684\u7ed3\u679c\uff0cax=03E8H\uff08\u5373\u55461000\uff09\uff0cdx=1\uff08\u4f59\u6570\uff09<\/p>\n\n\n\n<p><strong>\u7528\u9664\u6cd5\u6307\u4ee4\u8ba1\u7b971001\/100<\/strong><\/p>\n\n\n\n<p>\u7531\u4e8e\u88ab\u9664\u6570\u662f16\u4f4d\uff0c\u5219\u9664\u6570\u4e3a8\u4f4d<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mov ax, 1001\nmov bl, 100\ndiv bl<\/code><\/pre>\n\n\n\n<p>\u53ef\u4ee5\u5f97\u5230al=0AH\uff08\u5373\u554610\uff09\uff0cah=1\uff08\u4f59\u6570\uff09<\/p>\n\n\n\n<p>\u5728\u7f16\u7a0b\u4e2d\uff0c\u5982\u4f55\u66f4\u65b9\u4fbf\u7684\u5bf9\u5927\u6570\u5b57\u8fdb\u884c\u9664\u6cd5\uff1f<\/p>\n\n\n\n<h2>\u4f2a\u6307\u4ee4dd<\/h2>\n\n\n\n<p>\u4f2a\u6307\u4ee4dd\u548c dw\uff0cdb\u76f8\u4f3c\uff0c\u4f46\u5b83\u5b9a\u4e49\u7684\u662f\u53cc\u5b57\u578b\u5355\u5143\u3002\u5373\u5b83\u672c\u8eab\u5360\u670932\u4f4d<\/p>\n\n\n\n<p>\u5047\u8bbe\u4f9d\u7136\u662f\u4e0a\u8ff0\u7684100001\/100<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>data segment\n dd 100001\n dw 100\n dw 0\ndata ends<\/code><\/pre>\n\n\n\n<p>\u5b9a\u4e49\u4e86\u4e09\u4e2a\u5b57\u6bb5\uff0c\u5206\u522b\u662f\u88ab\u9664\u6570\uff0c\u9664\u6570\uff0c\u548c\u5546<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>mov ax, data\nmove ds,ax\nmov ax,ds:&#91;0]\nmov dx,ds:&#91;0]\ndiv word ptr ds:&#91;4]\nmov ds:&#91;6],ax<\/code><\/pre>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>div\u6307\u4ee4\u662f\u9664\u6cd5\u6307\u4ee4\uff0c\u5728\u4f7f\u7528div\u6307\u4ee4\u65f6 \u9664\u6570\uff1a8\u4f4d\u6216\u800516\u4f4d\uff0c\u5728\u5bc4\u5b58\u5668\u6216\u5185\u5b58\u5355\u5143\u4e2d \u88ab\u9664\u6570\uff1a\uff08\u9ed8\u8ba4\uff09\u653e\u5728AX&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/hb\/post-99.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u6c47\u7f16 div\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\/99"}],"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=99"}],"version-history":[{"count":1,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/99\/revisions"}],"predecessor-version":[{"id":100,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/posts\/99\/revisions\/100"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/media?parent=99"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/categories?post=99"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/hb\/wp-json\/wp\/v2\/tags?post=99"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}