{"id":1749,"date":"2022-03-29T00:29:33","date_gmt":"2022-03-28T16:29:33","guid":{"rendered":"https:\/\/www.xianwaizhiyin.net\/?p=1749"},"modified":"2022-06-11T02:06:42","modified_gmt":"2022-06-10T18:06:42","slug":"cpu%e6%8c%87%e4%bb%a4%e9%9b%86%e7%9a%84%e8%bf%9b%e5%8c%96%e5%8f%b2","status":"publish","type":"post","link":"https:\/\/www.xianwaizhiyin.net\/?p=1749","title":{"rendered":"CPU\u6307\u4ee4\u96c6\u7684\u8fdb\u5316\u53f2"},"content":{"rendered":"\n<p>x86 CPU \u7684\u53d1\u5c55\u5386\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"500\" src=\"https:\/\/www.xianwaizhiyin.net\/wp-content\/uploads\/2022\/03\/cpu-jinhua-1024x500.png\" alt=\"\" class=\"wp-image-1758\" srcset=\"https:\/\/www.xianwaizhiyin.net\/wp-content\/uploads\/2022\/03\/cpu-jinhua-1024x500.png 1024w, https:\/\/www.xianwaizhiyin.net\/wp-content\/uploads\/2022\/03\/cpu-jinhua-300x147.png 300w, https:\/\/www.xianwaizhiyin.net\/wp-content\/uploads\/2022\/03\/cpu-jinhua-768x375.png 768w, https:\/\/www.xianwaizhiyin.net\/wp-content\/uploads\/2022\/03\/cpu-jinhua-1536x750.png 1536w, https:\/\/www.xianwaizhiyin.net\/wp-content\/uploads\/2022\/03\/cpu-jinhua-2048x1000.png 2048w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/figure>\n\n\n\n<p><strong>8086 \u6307\u4ee4\uff1a<\/strong>\u8fd9\u4e2a\u65f6\u671f\u7684CPU\u9664\u4e86\u6709\u901a\u7528\u5bc4\u5b58\u5668\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a x87 FPU \u5355\u5143\uff0c\u7528\u6765\u5904\u7406\u6d6e\u70b9\u6570\u7684\u3002<\/p>\n\n\n\n<p><strong>MMX\u6307\u4ee4\uff1a<\/strong>\u8fd9\u662f\u7b2c\u4e00\u4e2a SIMD \u6280\u672f\uff0c\u5168\u79f0\u662f Single Instruction Multiple Data\uff0c\u4e5f\u5c31\u662f\u4e00\u6761\u6307\u4ee4\u64cd\u4f5c\u591a\u4e2a\u6570\u636e\uff0c\u4f8b\u5982 <code class=\"prettyprint\" >paddb<\/code> \u6307\u4ee4\uff0c\u53ef\u4ee5\u540c\u65f6\u5bf9 \u516b\u4e2a 8\u4f4d\u7684\u6574\u5f62\u505a\u52a0\u6cd5\u8fd0\u7b97\uff0c<code>paddb<\/code> \u6307\u4ee4 \u7684 p \u662f\u6307 packet \uff0cadd \u662f\u52a0\u7684\u610f\u601d\uff0c\u540e\u9762\u7684 b \u662f byte \u5b57\u8282\u7684\u610f\u601d\u3002\u8fd9\u4e2a\u6280\u672f\u7684\u51fa\u73b0\u6807\u5fd7\u7740 CPU \u8fdb\u5165 Date-Level Parallelism \u65f6\u4ee3\uff0c\u4e5f\u5c31\u662f\u6570\u636e\u5e76\u884c\u5904\u7406\u65f6\u4ee3\u3002MMX \u4f7f\u7528\u7684\u5bc4\u5b58\u5668\u8ddf x87 FPU \u7684\u5bc4\u5b58\u5668\u662f\u76f8\u540c\u7684\uff0c\u6240\u4ee5\u6267\u884c\u5b8c MMX \u6c47\u7f16\u6307\u4ee4 \u4e4b\u540e\u5207\u6362\u5230 x87 FPU \u6307\u4ee4 \u9700\u8981\u505a\u4e00\u4e9b\u72b6\u6001\u5904\u7406\u3002<\/p>\n\n\n\n<p><strong>SSE\u6307\u4ee4\uff1a<\/strong>\u5168\u79f0 Streaming SIMD Extensions\uff0c\u4e3a\u4ec0\u4e48\u53eb\u6d41\u5f0f\u6211\u4e5f\u4e0d\u592a\u6e05\u695a\uff0c\u8fd9\u4e2a\u6307\u4ee4\u96c6\u63d0\u4f9b\u4e86 \u8ddf MMX \u4e00\u6837\u7684\u591a\u6570\u636e\u5904\u7406\u80fd\u529b\uff0c\u4e5f\u53ef\u4ee5\u5904\u7406\u6d6e\u70b9\u6570\uff0c \u540c\u65f6\u5e26\u6765\u4e86 \u516b\u4e2a 128\u4f4d\u7684\u5bc4\u5b58\u5668 XMM0 ~ XMM7\uff0c\u4ee5\u524d MMX \u53ea\u670964\u7684\u5bc4\u5b58\u5668\u3002\u6240\u4ee5\u73b0\u4ee3\u6c47\u7f16\u5e94\u7528\uff0c\u666e\u904d\u4f1a\u4f7f\u7528 SSE \u6307\u4ee4\u96c6\u6765\u66ff\u6362 MMX \u8ddf X87FPU\uff0c\u4e0d\u8fc7CPU\u9700\u8981\u5411\u540e\u517c\u5bb9\uff0c\u540e\u9762\u51fa\u7684\u65b0\u578bCPU \u8fd8\u662f\u6709 MMX \u8ddfx87 FPU\u7684\u3002MMX \u8ddf SSE \u6307\u4ee4\u96c6\uff0c\u6709\u90e8\u5206\u6307\u4ee4\u662f\u91cd\u5408\u7684\u3002MMX \u7684\u6307\u4ee4\u53ef\u4ee5\u4f7f\u7528 SSE \u7684\u5bc4\u5b58\u5668 XMM0~XMM7\u3002<\/p>\n\n\n\n<p>SSE \u9664\u4e86\u6709\u66f4\u5927\u7684\u5bc4\u5b58\u5668\uff0c\u80fd\u5904\u7406\u6574\u5f62\uff0c\u4e5f\u80fd\u5904\u7406\u6d6e\u70b9\u578b\u3002\u9664\u5f00\u8fd9\u4e9b\u529f\u80fd\u4e4b\u5916\uff0cSSE \u8fd8\u6709\u4e00\u4e2a\u66f4\u91cd\u8981\u7684\u529f\u80fd\uff0c\u5c31\u662f\u6269\u5c55\u4e86\u6570\u5b66\u8868\u8fbe\u7684\u80fd\u529b\u3002\u63d0\u4f9b\u4e86\u6c42\u6700\u5927\uff0c\u6700\u5c0f\uff0c\u5e73\u5747\u503c\u7684\u6307\u4ee4\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>google_ads_content<\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p>\u4e3e\u4e2a\u4f8b\u5b50\uff0c\u4ee5\u524d\u6c42\u5e73\u5747\u7684\u6c47\u7f16\u4ee3\u7801\uff08<strong>AT&amp;T<\/strong>\u98ce\u683c\uff09\u5982\u4e0b\uff1a<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"prettyprint\" >add %ebx,%eax\ndiv $2,%eax<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u6c42\u5e73\u5747\u503c\u9700\u8981\u4e24\u6761\u6307\u4ee4\uff0c\u4f46\u662f\u7528SSE\u7684 <code class=\"prettyprint\" >pavgb<\/code> \u53ea\u97001\u4e2a\u6307\u4ee4\uff0c\u8fd8\u53ef\u4ee5\u64cd\u4f5c\u591a\u4e2a\u6570\u636e\uff0c\u540c\u65f6\u6c42\u5e73\u5747\u503c\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code class=\"prettyprint\" >pavgb %mm1,%mm2<\/code><\/pre>\n\n\n\n<p>\u539f\u6765\u4f60\u8981\u81ea\u5df1\u628a\u4e24\u4e2a\u6570\u76f8\u52a0\u9664\u4ee52 \u6c42\u5e73\u5747\uff0c\u73b0\u5728\u76f4\u63a5\u80fd\u7528\u4e00\u4e2a\u7b80\u5355\u7684\u8bed\u6cd5\u6c42\u5e73\u5747\uff0c\u6240SSE\u6269\u5c55\u7684\u662f\u4ed6\u7684\u6570\u5b66\u8868\u8fbe\u80fd\u529b\u3002<\/p>\n\n\n\n<p><strong>3DNow!\u6307\u4ee4\uff1a<\/strong>\u8fd9\u4e2a\u662f AMD \u51fa\u7684\u6307\u4ee4\u96c6\uff0c\u5df2\u7ecf\u8fc7\u65f6\u4e86\uff0c\u672c\u6765\u662f\u60f3\u8ddf SSE \u7ade\u4e89\u7684\u3002<\/p>\n\n\n\n<p><strong>SSE2\u6307\u4ee4\uff1a<\/strong>\u5177\u4f53\u53ef\u4ee5\u67e5\u770b intel \u6216\u8005 AMD \u7684\u624b\u518c\uff0c\u5e94\u8be5\u662f\u52a0\u4e86\u4e00\u4e9b\u65b0\u7684\u6307\u4ee4\u3002<\/p>\n\n\n\n<p><strong>x86-64\u67b6\u6784\uff1a<\/strong>\u8fd9\u4e2a\u67b6\u6784\u7684\u51fa\u73b0\u662f\u4e00\u4e2a\u91cc\u7a0b\u7891\uff0c\u6807\u5fd7\u7740\u8ba1\u7b97\u673a\u7cfb\u7edf\u4ece 32 \u4f4d\u8fdb\u5316\u5230 64\u4f4d\uff0c\u8fd9\u91cc\u6307\u7684\u662f\u901a\u7528\u5bc4\u5b58\u5668\uff0c<code class=\"prettyprint\" >eax<\/code> \u53d8\u6210\u4e86 <code>rax<\/code>\uff0c\u652f\u6301\u7684\u5185\u5b58\u4e5f\u4ece 4GB \u4e0a\u5347\u5230 128GB\u3002\u8fd9\u4e2a\u67b6\u6784\u7684\u7edf\u4e00\u7ecf\u5386\u4e86\u5f88\u591a\u6597\u4e89\uff0c\u5728\u8fd9\u4e2a\u8fc7\u7a0b\u4e2d\uff0cAMD \u628a\u81ea\u5df1\u7684x86-64\u6280\u672f\u53eb AMD64\uff0cintel \u628a\u81ea\u5df1\u7684x86-64\u6280\u672f \u53eb IA-32e \u6216\u8005 EM64T\u3002\u4e0d\u8fc7\u6700\u540e\u8fd9\u4e9b\u4e1c\u897f\u90fd\u7edf\u4e00\u6210 intel64\uff0c\u90fd\u53eb intel64\u3002<\/p>\n\n\n\n<p><strong>SSE3\u6307\u4ee4\uff1a<\/strong>\u5177\u4f53\u53ef\u4ee5\u67e5\u770b intel \u6216\u8005 AMD \u7684\u624b\u518c\uff0c\u5e94\u8be5\u662f\u52a0\u4e86\u4e00\u4e9b\u65b0\u7684\u6307\u4ee4\u3002<\/p>\n\n\n\n<p><strong>SSSE3\u6307\u4ee4\uff1a<\/strong>\u65b0\u589e\u4e8616\u6761\u6307\u4ee4\u3002<\/p>\n\n\n\n<p><strong>SSE4.1\u6307\u4ee4\uff1a<\/strong>\u8fd9\u4e2a\u6307\u4ee4\u96c6\u4e00\u5171 47 \u6761\u6307\u4ee4\u3002\u6bd4\u8f83\u91cd\u8981\u7684\u662f \u63d0\u4f9b <strong>\u70b9\u79ef<\/strong> \u7684\u6c47\u7f16\u6307\u4ee4\uff0c\u8fd8\u6709crc32 \u6307\u4ee4\uff0c\u8fd9\u4e2a\u51fd\u6570\u4e0a\u5c42\u5e94\u7528\u7ecf\u5e38\u4f7f\u7528\uff0c\u52a0\u5bc6\uff0ctcp \u90fd\u6709\u7528\u3002<\/p>\n\n\n\n<p><strong>SSE4a\u6307\u4ee4\uff1a<\/strong>\u8fd9\u4e2a\u6307\u4ee4\u96c6\u4e00\u5171 4\u6761\u6307\u4ee4\u3002<\/p>\n\n\n\n<p><strong>SSE4a\u6307\u4ee4\uff1a<\/strong>\u65b0\u589e 4\u6761\u6307\u4ee4\u3002<\/p>\n\n\n\n<p><strong>SSE4.2\u6307\u4ee4\uff1a<\/strong>\u65b0\u589e 7\u6761\u6307\u4ee4\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p>CPU \u4e00\u5f00\u59cb\u53ea\u6709 \u52a0\u51cf\u4e58\u9664 + \u6761\u4ef6\u63a7\u5236 \u7684\u6307\u4ee4\uff0c\u6240\u6709\u4e0a\u5c42\u5e94\u7528\u90fd\u80fd\u57fa\u4e8e\u8fd9\u4e2a\u57fa\u77f3\u5f00\u53d1\u51fa\u6765\uff0c\u65e0\u8bba\u662f\u64cd\u4f5c\u7cfb\u7edf\uff0c\u7f16\u8bd1\u5668\uff0c\u56fe\u50cf\u7cfb\u7edf\uff0c\u8fd8\u662f\u66f4\u4e0a\u5c42\u7684\u8ba2\u5355\u7cfb\u7edf\uff0cCRM\u7cfb\u7edf\uff0c\u8fdb\u9500\u5b58\u7cfb\u7edf\u7b49\u7b49\uff0c\u8fd9\u4e9b\u7cfb\u7edf\u7684\u5e95\u5c42\u90fd\u662f\u4e00\u6761\u6761 \u52a0\u51cf\u4e58\u9664\u6307\u4ee4 + \u6761\u4ef6\u63a7\u5236 \u6307\u4ee4 \u5806\u53e0\u51fa\u6765\u7684\u3002<\/p>\n\n\n\n<p>\u6240\u4ee5CPU\u6307\u4ee4\u96c6\u5386\u53f2\uff0c\u73b0\u5728\uff0c\u672a\u6765\u7684\u53d1\u5c55\u3002\u4e3b\u8981\u6709\u4e24\u70b9<\/p>\n\n\n\n<p>1\uff0c\u6269\u5c55\u66f4\u591a\u7684\u6570\u5b66\u8868\u8fbe\u7684\u80fd\u529b\u3002\uff08\u4f8b\u5982\u89c6\u9891\u6807\u51c6\u91cc\u9762\u4f7f\u7528\u5230\u7684\u6570\u5b66\u516c\u5f0f\uff0c\u8fd9\u4e9b\u6807\u51c6\uff0c\u5fc5\u987b\u6709\u82af\u7247\u884c\u4e1a\u8ddf\u8fdb\u624d\u80fd\u63d0\u9ad8\u8ba1\u7b97\u80fd\u529b\uff09<\/p>\n\n\n\n<p>2\uff0c\u9488\u5bf9\u7279\u5b9a\u7684\u7b97\u6cd5\u63d0\u4f9b\u52a0\u901f\u7684\u6c47\u7f16\u6307\u4ee4\uff0c\u4f8b\u5982 CRC32\u3002<\/p>\n\n\n\n<p>3\uff0c\u6469\u5c14\u5b9a\u5f8b\uff0c\u5728\u96c6\u6210\u7535\u8def\u4e0a\u52a0\u66f4\u591a\u7684\u6676\u4f53\u7ba1\uff0c\u52a0\u5feb\u5355\u6761\u6307\u4ee4\u7684\u6267\u884c\u901f\u5ea6\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p>\u6269\u5c55\u77e5\u8bc6<\/p>\n\n\n\n<p>1\uff0cMMX\u65f6\u4ee3 \uff0cMM0~MM7 \u5df2\u7ecf\u662f 64\u4f4d\u7684\u5bc4\u5b58\u5668\u4e86 \uff0c\u4e3a\u4ec0\u4e48\u8fd9\u4e2a\u8fd8\u662f\u53eb32\u4f4d\u67b6\u6784\uff1f\u53ea\u6709\u901a\u7528\u5bc4\u5b58\u5668 \u662f64\u4f4d\u624d\u80fd\u7b97\u4e0a\u662f 64\u4f4d\u7684\u67b6\u6784\u3002\u4f8b\u5982RAX \u662f64\u4f4d\uff0c\u8fd9\u624d\u662f 64\u4f4d\u67b6\u6784\uff0cEAX \u662f32\u4f4d\uff0c\u6240\u4ee5\u662f32\u4f4d\u67b6\u6784\uff0c\u8fd9\u4e2a\u6307\u7684\u662f\u901a\u7528\u5bc4\u5b58\u5668\u3002<\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p>\u76f8\u5173\u9605\u8bfb\uff1a<\/p>\n\n\n\n<p>1\uff0c<a href=\"http:\/\/www.360doc.com\/content\/18\/0808\/09\/34152255_776542803.shtml\">\u300aCPU\u6307\u4ee4\u96c6\u53d1\u5c55\u5386\u7a0b\u300b<\/a><\/p>\n\n\n\n<p>2\uff0c<a href=\"https:\/\/www.xianwaizhiyin.net\/?p=1761\">\u300a\u6307\u4ee4\u96c6\u5728\u7f16\u8bd1\u7cfb\u7edf\u7684\u5e94\u7528\u300b<\/a><\/p>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\"\/>\n\n\n\n<p>\u7531\u4e8e\u7b14\u8005\u7684\u6c34\u5e73\u6709\u9650\uff0c \u52a0\u4e4b\u7f16\u5199\u7684\u540c\u65f6\u8fd8\u8981\u53c2\u4e0e\u5f00\u53d1\u5de5\u4f5c\uff0c\u6587\u4e2d\u96be\u514d\u4f1a\u51fa\u73b0\u4e00\u4e9b\u9519\u8bef\u6216\u8005\u4e0d\u51c6\u786e\u7684\u5730\u65b9\uff0c\u6073\u8bf7\u8bfb\u8005\u6279\u8bc4\u6307\u6b63\u3002\u5982\u679c\u8bfb\u8005\u6709\u4efb\u4f55\u5b9d\u8d35\u610f\u89c1\uff0c\u53ef\u4ee5\u52a0\u6211\u5fae\u4fe1 Loken1\uff0cQQ\uff1a2338195090\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>x86 CPU \u7684\u53d1\u5c55\u5386\u7a0b\u5982\u4e0b\u56fe\u6240\u793a\uff1a 8086 \u6307\u4ee4\uff1a\u8fd9\u4e2a\u65f6\u671f\u7684CPU\u9664\u4e86\u6709\u901a\u7528\u5bc4\u5b58\u5668\u5916\uff0c\u8fd8\u6709\u4e00\u4e2a x87  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