{"id":17951,"date":"2026-06-10T08:59:15","date_gmt":"2026-06-10T00:59:15","guid":{"rendered":"https:\/\/ab123.xyz\/?p=17951"},"modified":"2026-06-10T08:59:15","modified_gmt":"2026-06-10T00:59:15","slug":"risc-v-%e6%b5%ae%e7%82%b9%e5%8d%95%e5%85%83%e7%b2%be%e5%ba%a6%e5%af%b9%e7%a7%91%e5%ad%a6%e8%ae%a1%e7%ae%97%e5%bd%b1%e5%93%8d%e6%b5%8b%e8%af%95%e5%b7%a5%e5%85%b7%e8%af%a6%e8%a7%a3","status":"publish","type":"post","link":"https:\/\/ab123.xyz\/?p=17951","title":{"rendered":"RISC-V \u6d6e\u70b9\u5355\u5143\u7cbe\u5ea6\u5bf9\u79d1\u5b66\u8ba1\u7b97\u5f71\u54cd\u6d4b\u8bd5\u5de5\u5177\u8be6\u89e3"},"content":{"rendered":"<p>\u968f\u7740RISC-V\u67b6\u6784\u5728\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u7684\u5feb\u901f\u6e17\u900f\uff0c\u6d6e\u70b9\u5355\u5143(FPU)\u7684\u7cbe\u5ea6\u7279\u6027\u6210\u4e3a\u51b3\u5b9a\u79d1\u5b66\u8ba1\u7b97\u7ed3\u679c\u53ef\u9760\u6027\u7684\u5173\u952e\u3002\u4e3a\u5e2e\u52a9\u7814\u7a76\u4eba\u5458\u548c\u5de5\u7a0b\u5e08\u91cf\u5316\u8bc4\u4f30\u4e0d\u540c\u914d\u7f6e\u4e0b\u7684\u7cbe\u5ea6\u635f\u5931\uff0c<strong>FPU\u7cbe\u5ea6\u5f71\u54cd\u6d4b\u8bd5\u5de5\u5177<\/strong>\u5e94\u8fd0\u800c\u751f\u3002\u8be5\u5de5\u5177\u7531RISC-V\u56fd\u9645\u57fa\u91d1\u4f1a\u4e0b\u5c5e\u5f00\u6e90\u5b9e\u9a8c\u5ba4\u5f00\u53d1\uff0c\u4e13\u95e8\u9488\u5bf9\u5355\u7cbe\u5ea6\u3001\u53cc\u7cbe\u5ea6\u4ee5\u53ca\u81ea\u5b9a\u4e49\u6d6e\u70b9\u683c\u5f0f\u8fdb\u884c\u8001\u5316\u6d4b\u8bd5\u4e0e\u8bef\u5dee\u5206\u6790\u3002\u8bbf\u95ee\u5176 <a href=\"https:\/\/riscv.org\/technical\/specifications\/\" target=\"_blank\">\u5b98\u65b9\u7f51\u7ad9<\/a> \u53ef\u83b7\u53d6\u6700\u65b0\u7248\u672c\u4e0e\u6587\u6863\u3002<\/p>\n<h2>\u6838\u5fc3\u529f\u80fd\u4e0e\u6d4b\u8bd5\u65b9\u6cd5<\/h2>\n<p>\u8be5\u5de5\u5177\u901a\u8fc7\u6784\u5efa\u6807\u51c6\u5316\u6570\u5b66\u8fd0\u7b97\u96c6\uff08\u5305\u62ec\u77e9\u9635\u4e58\u6cd5\u3001FFT\u3001\u5fae\u5206\u65b9\u7a0b\u6c42\u89e3\uff09\u6765\u6a21\u62df\u5178\u578b\u79d1\u5b66\u8d1f\u8f7d\u3002\u6bcf\u4e2a\u6d4b\u8bd5\u7528\u4f8b\u5206\u522b\u4ee5IEEE 754\u6807\u51c6\u53c2\u8003\u503c\u4e0eRISC-V FPU\u5b9e\u9645\u8f93\u51fa\u505a\u5bf9\u6bd4\uff0c\u8f93\u51fa\u76f8\u5bf9\u8bef\u5dee\u3001\u5747\u65b9\u6839\u8bef\u5dee\u53ca\u5f02\u5e38\u503c\u6bd4\u4f8b\u3002\u6d4b\u8bd5\u8303\u56f4\u8986\u76d6<strong>32\u4f4d\u6d6e\u70b9<\/strong>\u4e0e<strong>64\u4f4d\u6d6e\u70b9<\/strong>\uff0c\u5e76\u652f\u6301\u6269\u5c55\u7cbe\u5ea6\u6a21\u5f0f\uff08\u5982bf16\u3001TF32\uff09\u3002<\/p>\n<h3>\u7cbe\u51c6\u8bef\u5dee\u6eaf\u6e90<\/h3>\n<p>\u5de5\u5177\u5185\u5d4c\u9010\u6307\u4ee4\u53cd\u6c47\u7f16\u529f\u80fd\uff0c\u53ef\u5c06\u6bcf\u6761\u6d6e\u70b9\u6307\u4ee4\u7684\u4e2d\u95f4\u7ed3\u679c\u4e0e\u9884\u671f\u503c\u6620\u5c04\uff0c\u5e2e\u52a9\u5b9a\u4f4d\u820d\u5165\u7b56\u7565\u6216\u5c3e\u6570\u622a\u65ad\u5f15\u8d77\u7684\u7cfb\u7edf\u6027\u504f\u5dee\u3002\u8fd9\u5bf9\u4e8e\u6c14\u5019\u6a21\u62df\u3001\u5206\u5b50\u52a8\u529b\u5b66\u7b49\u9700\u8981\u957f\u5468\u671f\u7a33\u5b9a\u8fd0\u884c\u7684\u5e94\u7528\u5c24\u4e3a\u91cd\u8981\u3002<\/p>\n<h2>\u5e94\u7528\u573a\u666f\u4e0e\u4f18\u52bf<\/h2>\n<p>\u5728\u822a\u5929\u5668\u8f68\u9053\u8ba1\u7b97\u3001\u6838\u805a\u53d8\u7b49\u79bb\u5b50\u4f53\u6a21\u62df\u7b49\u9ad8\u654f\u611f\u6027\u79d1\u5b66\u5de5\u7a0b\u4e2d\uff0cFPU\u5fae\u5c0f\u7684\u7cbe\u5ea6\u5dee\u5f02\u53ef\u80fd\u5bfc\u81f4\u6700\u7ec8\u7ed3\u679c\u504f\u79bb\u5b9e\u9645\u3002\u501f\u52a9\u672c\u6d4b\u8bd5\u5de5\u5177\uff0c\u56e2\u961f\u53ef\u5728\u6d41\u7247\u524d\u5b8c\u6210\u4f4e\u7cbe\u5ea6FPU\u7684\u63a5\u53d7\u5ea6\u8bc4\u4f30\uff0c\u907f\u514d\u540e\u671f\u7b97\u6cd5\u8fc1\u79fb\u7684\u989d\u5916\u6210\u672c\u3002<\/p>\n<ul>\n<li>\u652f\u6301\u4e3b\u6d41RISC-V\u6838\uff1aSiFive U\u7cfb\u5217\u3001\u5e73\u5934\u54e5\u7384\u94c1C910\u7b49<\/li>\n<li>\u81ea\u52a8\u751f\u6210\u53ef\u89c6\u5316\u8bef\u5dee\u62a5\u544a\uff0c\u542b\u6563\u70b9\u56fe\u4e0e\u7d2f\u79ef\u5206\u5e03\u66f2\u7ebf<\/li>\n<li>\u517c\u5bb9Linux\u4e0e\u88f8\u673a\u73af\u5883\uff0c\u4fbf\u4e8e\u96c6\u6210\u81f3CI\/CD\u6d41\u6c34\u7ebf<\/li>\n<\/ul>\n<h3>\u5feb\u901f\u542f\u52a8\u6307\u5357<\/h3>\n<p>\u7528\u6237\u4ece\u5b98\u7f51\u4e0b\u8f7d\u6e90\u7801\u540e\uff0c\u6267\u884c <code>.\/configure --precision=double &amp;&amp; make &amp;&amp; .\/run_all<\/code> \u5373\u53ef\u572830\u5206\u949f\u5185\u5b8c\u6210\u57fa\u7840\u6d4b\u8bd5\u3002\u8f93\u51fa\u76ee\u5f55\u4e0b\u7684 <code>error_summary.html<\/code> \u63d0\u4f9b\u4ea4\u4e92\u5f0f\u5206\u6790\u9762\u677f\u3002<\/p>\n<h2>\u884c\u4e1a\u8ba4\u53ef\u4e0e\u6848\u4f8b<\/h2>\n<p>\u4e2d\u56fd\u79d1\u5b66\u9662\u8f6f\u4ef6\u7814\u7a76\u6240\u66fe\u5229\u7528\u8be5\u5de5\u5177\u5bf9\u6bd4SiFive U74\u4e0eARM Cortex-A76\u5728\u6c14\u8c61\u6a21\u578b\u4e2d\u7684FPU\u8868\u73b0\uff0c\u53d1\u73b0RISC-V\u5728\u53cc\u7cbe\u5ea6\u4e0b\u8bef\u5dee\u5206\u5e03\u4e0eARM\u9ad8\u5ea6\u4e00\u81f4\uff0c\u786e\u8ba4\u5176\u9002\u5408\u66ff\u4ee3\u73b0\u6709\u65b9\u6848\u3002\u53e6\u4e00\u6848\u4f8b\u4e2d\uff0c\u67d0\u91cf\u5b50\u5316\u5b66\u56e2\u961f\u901a\u8fc7\u5de5\u5177\u53d1\u73b0\u67d0\u6b3eRISC-V\u82af\u7247\u5728\u8fde\u7eed\u4e58\u52a0\u64cd\u4f5c\u4e2d\u5b58\u57282%\u7684\u5f02\u5e38\u8bef\u5dee\uff0c\u540e\u7ecf\u4fee\u6539\u5fae\u7801\u89e3\u51b3\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u968f\u7740RISC-V\u67b6\u6784\u5728\u9ad8\u6027\u80fd\u8ba1\u7b97\u9886\u57df\u7684\u5feb\u901f\u6e17\u900f\uff0c\u6d6e\u70b9\u5355\u5143(FPU)\u7684\u7cbe\u5ea6\u7279\u6027\u6210\u4e3a\u51b3\u5b9a\u79d1\u5b66\u8ba1\u7b97\u7ed3\u679c\u53ef\u9760\u6027\u7684\u5173\u952e\u3002 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[21324,21322,21323,21325,4199],"class_list":["post-17951","post","type-post","status-publish","format-standard","hentry","category-4","tag-fpu","tag-risc-v","tag-21323","tag-21325","tag-4199"],"_links":{"self":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17951","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=17951"}],"version-history":[{"count":1,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17951\/revisions"}],"predecessor-version":[{"id":17953,"href":"https:\/\/ab123.xyz\/index.php?rest_route=\/wp\/v2\/posts\/17951\/revisions\/17953"}],"wp:attachment":[{"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=17951"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=17951"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ab123.xyz\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=17951"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}