{"id":153,"date":"2024-04-12T16:06:56","date_gmt":"2024-04-12T08:06:56","guid":{"rendered":"https:\/\/yewpo.top\/?p=153"},"modified":"2024-04-12T16:06:56","modified_gmt":"2024-04-12T08:06:56","slug":"nsim%ef%bc%9a%e5%9f%ba%e4%ba%8e-nemu-%e6%a1%86%e6%9e%b6%e6%90%ad%e5%bb%ba-npc-%e4%bb%bf%e7%9c%9f%e7%8e%af%e5%a2%83","status":"publish","type":"post","link":"https:\/\/www.yewpo.top\/index.php\/153\/","title":{"rendered":"NSIM\uff1a\u57fa\u4e8e NEMU \u6846\u67b6\u642d\u5efa NPC \u4eff\u771f\u73af\u5883"},"content":{"rendered":"<blockquote><p>\u5728<strong>\u4e00\u751f\u4e00\u82af<\/strong>\u7684\u5b66\u4e60\u4e2d\uff0c\u5199\u5b8c <code>NPC<\/code> \u5904\u7406\u5668\u4e4b\u540e\uff0c\u9700\u8981\u642d\u5efa\u4eff\u771f\u73af\u5883\u3002\u7b2c\u516d\u671f\u4e00\u751f\u4e00\u82af\u8bb2\u4e49\u9996\u5148\u5c31\u63d0\u51fa\u4e3a <code>NPC<\/code> \u642d\u5efa <code>sdb<\/code> \u8c03\u8bd5\u5668\u3002\u5728\u6b64\u4e4b\u524d\u5462\uff0c\u5b66\u751f\u90fd\u5df2\u7ecf\u5b8c\u6210\u4e86 <code>PA 1<\/code> \u5b9e\u9a8c\uff0c\u5373 <code>NEMU<\/code>\uff0c\u5728 <code>NEMU<\/code> \u4e2d\u5df2\u7ecf\u642d\u5efa\u4e86\u6240\u9700\u8981\u7684 <code>sdb<\/code>\u3002\u6240\u4ee5\uff0c\u5b66\u751f\u7684\u666e\u904d\u505a\u6cd5\u662f\u60f3\u79fb\u690d <code>NEMU<\/code>\uff0c\u4e3a <code>NPC<\/code> \u642d\u5efa\u4eff\u771f\u73af\u5883\u3002\u53e6\u5916\u4e00\u79cd\u60c5\u51b5\u662f\uff0c<code>verilator<\/code> \u4eff\u771f\u4f7f\u7528\u7684\u662f <code>C++<\/code> \u4ee3\u7801\uff0c\u800c <code>NEMU<\/code> \u4f7f\u7528\u7684\u662f <code>C<\/code> \u4ee3\u7801\uff0c\u6545\u60f3\u76f4\u63a5\u91cd\u65b0\u5199\u4e00\u4e2a <code>C++<\/code> \u7248\u672c\u7684\u4eff\u771f\u73af\u5883\u3002\u4ee5\u4e0a\u8fd9\u4e24\u79cd\u505a\u6cd5\u65e0\u7591\u662f\u7e41\u7410\u7684\u5de5\u4f5c\uff0c\u589e\u52a0\u51fa\u9519\u548c\u8c03\u8bd5\u7684\u6982\u7387\u3002\u672c\u6587\u7684\u505a\u6cd5\u662f\uff0c\u76f4\u63a5\u5728\u539f\u6709\u7684 <code>NEMU<\/code> \u7684\u4ee3\u7801\u6846\u67b6\u57fa\u7840\u4e0a\uff0c\u6dfb\u52a0\u5bf9 <code>NPC<\/code> \u4eff\u771f\u7684\u9002\u914d\u4ee3\u7801\uff0c\u4ee5\u53ef\u4ee5\u5728 <code>NEMU<\/code> \u4e0a\u8fd0\u884c <code>NPC<\/code> \u7684\u4eff\u771f\uff0c\u5e76\u4e14\u4f7f\u7528 <code>NEMU<\/code> \u5df2\u6709\u7684\u8c03\u8bd5\u5de5\u5177\u3002\u8be5\u505a\u6cd5\u53ea\u9700\u8981\u6dfb\u52a0 <code>250+<\/code> \u884c\u5de6\u53f3\u7684\u4ee3\u7801\uff0c\u5c31\u80fd\u5b8c\u6210\u4eff\u771f\uff0c\u800c\u4e14\u6267\u884c\u7684\u6b63\u786e\u6027\u7531\u539f\u6709\u5b9e\u73b0\u7684 <code>NEMU<\/code> \u4fdd\u8bc1\u3002<\/p><\/blockquote>\n<h2>1 \u5f15\u5165<\/h2>\n<h3>1.1 \u52a8\u673a<\/h3>\n<p>\u521d\u5b66\u9636\u6bb5\u5b9e\u73b0\u7684 <code>NPC<\/code>\uff0c\u4e0d\u5e26\u5185\u5b58\uff0c\u4e0d\u5e26\u5916\u8bbe\uff0c\u9700\u8981\u4eff\u771f\u73af\u5883\u6765\u6a21\u62df\u5b9e\u73b0\u8fd9\u4e9b\u90e8\u5206\u7684\u884c\u4e3a\u3002<code>NEMU<\/code> \u662f\u4e00\u4e2a\u652f\u6301\u591a\u79cd\u4f53\u7cfb\u7ed3\u6784\u7684\u6307\u4ee4\u6a21\u62df\uff0c\u4e5f\u5b9e\u73b0\u4e86\u5bf9\u5185\u5b58\u3001\u5916\u8bbe\u4ee5\u53ca\u5f02\u5e38\u7684\u6a21\u62df\u3002\u5df2\u6709\u7684\u4e24\u79cd\u505a\u6cd5\uff1a1. \u79fb\u690d <code>NEMU<\/code> \u4ee3\u7801\u30022. \u57fa\u4e8e <code>NEMU<\/code> \u7684\u5b9e\u73b0\u601d\u8def\u91cd\u5199\u4eff\u771f\u73af\u5883\u3002<\/p>\n<p>\u5982\u679c\u91c7\u7528\u79fb\u690d\u7684\u65b9\u5f0f\u6765\u5b8c\u6210 <code>NPC<\/code> \u7684\u4eff\u771f\u73af\u5883\u7684\u642d\u5efa\uff0c\u9700\u8981\u79fb\u9664 <code>NEMU<\/code> \u4e2d\u539f\u6709\u652f\u6301\u5176\u4ed6\u6307\u4ee4\u96c6\u7684\u90e8\u5206\uff08<code>NPC<\/code> \u53ea\u652f\u6301\u4e00\u79cd\u6307\u4ee4\u96c6\uff09\u3002\u5220\u9664\u4ee3\u7801\u7684\u8fc7\u7a0b\u5c31\u6709\u53ef\u80fd\u5f15\u5165\u5f88\u591a\u65b0\u7684\u9519\u8bef\uff08\u5220\u591a\u4e86\u7f3a\u5c11\u6807\u8bc6\u7b26\u7684 <code>error<\/code>\uff0c\u5220\u5c11\u4e86\uff0c\u5c31\u662f\u672a\u4f7f\u7528\u7684\u6807\u8bc6\u7b26\u7684 <code>warning<\/code>\uff09\uff1b<code>NEMU<\/code> \u7684 <code>C<\/code> \u4ee3\u7801\u548c\u4eff\u771f\u7684 <code>C++<\/code> \u4ee3\u7801\u5982\u4f55\u53cb\u597d\u5730\u5408\u5728\u4e00\u8d77\u7f16\u8bd1\uff0c\u9700\u8981\u4e00\u4e9b\u5de5\u4f5c\u6765\u5b8c\u6210\u811a\u672c\u7684\u7f16\u5199\uff1b\u6b64\u5916\uff0c\u4ecd\u7136\u9700\u8981\u8003\u8651\uff0c\u5982\u4f55\u53cb\u597d\u5730\u5f15\u5165 <code>DPI-C<\/code>\uff1f\u5982\u679c\u5bf9 <code>NEMU<\/code> \u7684\u4ee3\u7801\u6ca1\u6709\u6df1\u523b\u7684\u7406\u89e3\uff0c\u540e\u9762\u7684\u8c03\u8bd5\u4e5f\u4f1a\u6709\u4e00\u5b9a\u7684\u963b\u529b\u3002<\/p>\n<p>\u5982\u679c\u9009\u62e9\u91cd\u6784\uff0c\u53ef\u4ee5\u6bd4\u8f83\u81ea\u7531\u5730\u7f16\u5199\u81ea\u5df1\u6240\u9700\u8981\u7684\u90e8\u5206\uff0c\u751a\u81f3\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 <code>C++<\/code>\uff0c\u8fd9\u6837\u548c <code>verilator<\/code> \u7ed3\u5408\u975e\u5e38\u7684\u65b9\u4fbf\u3002\u524d\u671f\u53ef\u80fd\u611f\u89c9\u5230\uff0c\u91cd\u6784\u624d\u662f\u5de5\u4f5c\u91cf\u6700\u5c0f\u7684\u9009\u62e9\uff0c\u800c\u4e14\u81ea\u5df1\u4e5f\u975e\u5e38\u6e05\u695a\u7684\u4e86\u89e3\u81ea\u5df1\u7684\u4eff\u771f\u662f\u5982\u4f55\u5de5\u4f5c\u7684\uff0c\u4e5f\u65b9\u4fbf\u540e\u9762\u7684\u8c03\u8bd5\u3002\u4e00\u751f\u4e00\u82af\u7684\u5b66\u4e60\uff0c\u5b66\u751f\u4eec\u6765\u81ea\u5404\u4e2a\u4e13\u4e1a\uff0c\u53ef\u80fd\u5bf9\u8f6f\u4ef6\u67b6\u6784\u4e0d\u662f\u7279\u522b\u7684\u4e86\u89e3\uff0c\u4e60\u60ef\u6027\u5730\u57fa\u4e8e\u8fc7\u7a0b\u7f16\u7a0b\u3002\u540e\u671f\u4f1a\u53d1\u73b0\uff0c<code>NEMU<\/code> \u7684\u6a21\u5757\u62bd\u8c61\u662f\u5b9e\u73b0\u5730\u975e\u5e38\u597d\uff0c\u4e5f\u53ef\u4ee5\u6839\u636e\u5b9e\u9645\u7684\u4f7f\u7528\u9700\u6c42\uff0c\u5bf9\u8fd9\u4e9b\u6a21\u5757\u7684\u529f\u80fd\u7684\u5f00\u548c\u5173\u3002\u8fd9\u4e9b\u5185\u5bb9\uff0c\u5bf9\u540e\u9762\u7684\u8c03\u8bd5\u9009\u62e9\u6027\u5173\u95ed\u529f\u80fd\u63d0\u4f9b\u4e86\u4fbf\u5229\u3002\u5f53\u7136\uff0c\u524d\u671f\u53ef\u80fd\u6bd4\u8f83\u96be\u6709\u8fd9\u6837\u7684\u7f16\u7a0b\u8003\u8651\uff0c\u540e\u671f\u53ea\u6709\u5bf9\u8fd9\u4e9b\u90e8\u5206\u8fdb\u884c\u91cd\u6784\u4e86\uff0c\u5de5\u4f5c\u91cf\u53cd\u800c\u4e0a\u5347\u4e86\u3002<\/p>\n<h3>1.2 NSIM<\/h3>\n<p>\u6211\u4eec\u5c06\u57fa\u4e8e <code>NEMU<\/code> \u6846\u67b6\u5f00\u53d1\u642d\u5efa\u7684 <code>NPC<\/code> \u4eff\u771f\u73af\u5883\u547d\u540d\u4e3a <code>NSIM<\/code>\u3002<code>NSIM<\/code> \u63d0\u4f9b <code>NPC<\/code> \u7684\u6307\u4ee4\u6267\u884c\u63a5\u53e3\uff0c\u4f9b <code>NEMU<\/code> \u7684\u5904\u7406\u5668\u6267\u884c\u6a21\u5757\u4f7f\u7528\u3002\u6b64\u5916\uff0c\u63d0\u4f9b\u4eff\u771f\u73af\u5883 <code>DPI-C<\/code> \u7684\u63a5\u53e3\uff0c\u4f9b <code>NEMU<\/code> \u7684\u5bc4\u5b58\u5668\u5806\u3001\u5185\u5b58\u83b7\u53d6\u5fc5\u8981\u7684\u6307\u4ee4\u6267\u884c\u4fe1\u606f\u3002\u8be5\u65b9\u5f0f\u5b9e\u73b0\u6709\u4ee5\u4e0b\u4f18\u52bf\uff1a<\/p>\n<ul>\n<li>\u4f7f\u7528\u539f\u6709\u7684 <code>NEMU<\/code> \u5404\u79cd\u529f\u80fd\uff0c\u5305\u62ec <code>difftest<\/code>\uff0c\u800c\u65e0\u9700\u5bf9\u8fd9\u4e9b\u4ee3\u7801\u8fdb\u884c\u4fee\u6539\uff08<strong>\u914d\u7f6e\u6587\u4ef6\u9700\u8981\u4fee\u6539<\/strong>\uff09\u3002<\/li>\n<li>\u53ea\u9700\u6dfb\u52a0\u5c11\u91cf\u7684\u4eff\u771f\u73af\u5883\u63a5\u53e3\uff0c\u65b0\u589e\u4ee3\u7801\u53ea\u6709 <code>200+<\/code> SLoC\u3002<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20241103231715024.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"zoom: 50%;\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20241103231715024.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20241103231715024\" \/><\/div><\/p>\n<h2>2 NSIM \u67b6\u6784<\/h2>\n<p>\u5148\u6765\u770b\u770b <code>NEMU<\/code> \u7684\u67b6\u6784\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20241103180656644.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"zoom: 80%;\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20241103180656644.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20241103180656644\" \/><\/div><\/p>\n<p>\u65e2\u7136 <code>NSIM<\/code> \u662f\u57fa\u4e8e <code>NEMU<\/code> \u5b9e\u73b0\u7684\uff0c\u90a3\u6211\u4eec\u8bb2\u8bb2 <code>NEMU<\/code> \u5904\u7406\u5668\u6267\u884c\u8fd9\u4e00\u90e8\u5206\u662f\u600e\u4e48\u5b9e\u73b0\u7684\u3002<\/p>\n<h3>2.1 NEMU \u7684\u6307\u4ee4\u6267\u884c<\/h3>\n<p><code>NEMU<\/code> \u7684\u6267\u884c\u6a21\u5757\u7684\u67b6\u6784\u5982\u4e0b\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/nemu.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"zoom: 25%;\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/nemu.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"nemu\" \/><\/div><\/p>\n<p>\u6bcf\u4e00\u4e2a <code>ISA<\/code> \u90fd\u6709\u4e00\u5957\u81ea\u5df1\u6307\u4ee4\u96c6\u76f8\u5173\u7684\u5bc4\u5b58\u5668\u5806\uff0c\u5e76\u4e14\u5b9e\u73b0\u81ea\u5df1\u7684\u6307\u4ee4\u6267\u884c\u5f15\u64ce\uff08Exec Engine\uff09\uff0c\u5b8c\u6210\u6307\u4ee4\u96c6\u7ea6\u675f\u7684\u53d6\u6307\u548c\u6267\u884c\u64cd\u4f5c\uff0c\u4f1a\u5bf9\u5bc4\u5b58\u5668\u6216\u8005\u662f\u5185\u5b58\u72b6\u6001\u8fdb\u884c\u4fee\u6539\u3002\u6267\u884c\u5f15\u64ce\u90e8\u5206\u5bf9\u5916\u63d0\u4f9b <code>isa_exec_once<\/code> \u7684\u63a5\u53e3\u3002<code>Difftest<\/code> \u6a21\u5757\u63d0\u4f9b\u67b6\u6784\u76f8\u5173\u7684\u5bc4\u5b58\u5668\u5bf9\u6bd4\u529f\u80fd\uff0c\u5bf9\u5916\u63d0\u4f9b <code>isa_difftest_checkregs<\/code> \u63a5\u53e3\u3002<code>NEMU<\/code> \u7684\u6267\u884c\u6a21\u5757\u6839\u636e\u914d\u7f6e\u9700\u6c42\uff0c\u9009\u62e9\u5bf9\u5e94\u7684 <code>ISA<\/code> \u6a21\u5757\u7684\u63a5\u53e3\u3002<\/p>\n<h3>2.2 NPC ISA<\/h3>\n<p>\u7c7b\u4f3c\u7684\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a <code>NPC<\/code> ISA\uff0c\u5982\u4e0b\u56fe\u6240\u793a\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/npc.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"zoom: 25%;\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/npc.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"npc\" \/><\/div><\/p>\n<p>\u5176\u4e2d <code>Difftest<\/code> \u548c\u5176\u4ed6 ISA \u76f8\u540c\uff0c\u4e0d\u540c\u7684\u4e8b\u6267\u884c\u5f15\u64ce\u3002\u5728\u4eff\u771f\u73af\u5883\u4e2d\uff0c<code>NPC<\/code> \u4f1a\u63d0\u4f9b\u6fc0\u52b1\u6267\u884c\u7684\u51fd\u6570\u63a5\u53e3\uff0c\u4f46\u662f\u5e76\u4e0d\u8868\u793a\u6267\u884c\u5b8c\u4e00\u6b21\uff0c\u5c31\u8868\u793a\u4e00\u6b21\u6307\u4ee4\u6267\u884c\u5b8c\u6210\u3002\u6b64\u65f6\u9700\u8981 <code>DPI-C<\/code> \u6765\u901a\u77e5\u4e00\u6761\u6307\u4ee4\u7684\u6267\u884c\u5b8c\u6210\u3002\u7531\u4e8e <code>DPI-C<\/code> \u548c\u4eff\u771f\u5f3a\u76f8\u5173\uff0c\u6211\u4eec\u4e0d\u8003\u8651\u5728\u8fd9\u4e2a\u4f4d\u7f6e\u5b9e\u73b0 <code>DPI-C<\/code>\u3002<\/p>\n<p>\u8fd9\u6837\uff0c\u6211\u4eec\u7684 <code>NSIM<\/code> \u7684\u4eff\u771f\u67b6\u6784\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20241103181248804.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"zoom: 80%;\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/image-20241103181248804.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"image-20241103181248804\" \/><\/div><\/p>\n<h3>2.3 NSIM \u7684\u601d\u8def<\/h3>\n<p><code>NSIM<\/code> \u7684\u5b9e\u73b0\u7684\u6784\u4ef6\u56fe\u5982\u4e0b\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/nsim.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" style=\"zoom: 25%;\" data-original=\"https:\/\/raw.githubusercontent.com\/YEWPO\/yewpoblogonlinePic\/main\/nsim.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"nsim\" \/><\/div><\/p>\n<p>\u5728 <code>NEMU<\/code> \u7684\u539f\u6709\u6846\u67b6\u4e2d\uff0c\u6211\u4eec\u4ec5\u63d0\u4f9b\u56de\u8c03\u51fd\u6570\u4f9b\u4eff\u771f\u73af\u5883\u8c03\u7528\u3002\u8fd9\u90e8\u5206\u4ecd\u7136\u7531 <code>C<\/code> \u8bed\u8a00\u5b9e\u73b0\uff0c\u53c2\u4e0e\u5230 <code>NEMU<\/code> \u7684\u7f16\u8bd1\u4e2d\u3002\u4eff\u771f\u73af\u5883\u7531 <code>C++<\/code> \u8bed\u8a00\u5b9e\u73b0\uff0c\u5f53\u6307\u4ee4\u6267\u884c\u5b8c\u6210\u540e\u901a\u8fc7\u56de\u8c03\u51fd\u6570\u66f4\u65b0 <code>NEMU<\/code> \u4e2d\u7684\u6267\u884c\u72b6\u6001\u3002\u8fd9\u90e8\u5206\u53c2\u4e0e\u5230 <code>verilator<\/code> \u7684\u7f16\u8bd1\u4e2d\uff0c\u6700\u7ec8\u751f\u6210\u4e00\u4e2a\u5f52\u6863\uff08archives\uff09\u4f9b <code>NEMU<\/code> \u94fe\u63a5\u4f7f\u7528\u3002<\/p>\n<p>\u8fd9\u79cd\u505a\u6cd5\u89e3\u8026\u4e86\u4eff\u771f\u73af\u5883\u548c <code>NEMU<\/code>\uff0c\u4e24\u8005\u7f16\u8bd1\u4e92\u4e0d\u5f71\u54cd\u3002<\/p>\n<h2>3 NSIM \u5b9e\u73b0<\/h2>\n<h3>3.1 \u521d\u59cb\u5316<\/h3>\n<p>\u7b2c\u4e00\u6b21\u5c1d\u8bd5\uff0c\u4e3a\u4e86\u4e0d\u5f71\u54cd\u81ea\u5df1\u539f\u6709\u5b9e\u73b0\u7684 <code>NEMU<\/code> \u4ee3\u7801\uff0c\u6545\u590d\u5236\u4e86\u4e00\u4efd\u539f\u6709\u4ee3\u7801\u7684\u57fa\u7840\u4e0a\u8fdb\u884c\u4fee\u6539\u3002\u76ee\u5f55\u540d\u547d\u540d\u4e3a <code>nsim<\/code>\u3002\u4f7f\u7528\u547d\u4ee4\u884c\u5de5\u5177\uff0c\u5c06\u76ee\u5f55\u4e2d\u6240\u6709\u5e26 <code>nemu<\/code> \u4ee5\u53ca <code>NEMU<\/code> \u7684\u5355\u8bcd\u5168\u90e8\u66ff\u6362\u4e3a <code>nsim<\/code> \u6216\u8005 <code>NSIM<\/code>\u3002<\/p>\n<blockquote><p>\u8fd9\u90e8\u5206\u505a\u6cd5\u95ee <code>ChatGPT<\/code> \u4e5f\u975e\u5e38\u6709\u7528\uff0c\u51e0\u884c\u547d\u4ee4\u5c31\u53ef\u4ee5\u89e3\u51b3\u800c\u4e14\u4e0d\u4f1a\u6539\u6f0f\u3002<\/p><\/blockquote>\n<p>\u6dfb\u52a0\u7cfb\u7edf <code>PATH<\/code> \u8def\u5f84\uff0c\u65b0\u589e <code>NSIM_HOME<\/code>\u3002<\/p>\n<blockquote><p><strong>Kconfig \u4e2d\u8981\u5c06 <code>ISA_npc<\/code> \u6807\u8bb0\u4e3a <code>RV64<\/code> \u548c <code>ISA64<\/code>\uff1b\u5934\u6587\u4ef6 <code>isa_def.h<\/code> \u4e2d\u6dfb\u52a0 <code>ISA_npc<\/code> \u7684\u8bc6\u522b\uff1b<code>monitor.c<\/code> \u6dfb\u52a0\u5bf9 <code>CONFIG_ISA<\/code> \u4e3a <code>npc<\/code> \u7684\u60c5\u51b5\u8bc6\u522b\uff0c\u5728\u8fd9\u91cc\uff0c\u76f4\u63a5\u8bc6\u522b\u6210 <code>riscv64<\/code>\u3002<\/strong><\/p><\/blockquote>\n<h3>3.2 NPC ISA \u5b9e\u73b0<\/h3>\n<p>\u5728 <code>NEMU<\/code> \u7684 ISA \u4e2d\uff0c\u6709\u4ee5\u4e0b\u51e0\u4e2a\u90e8\u5206\u9700\u8981\u5b9e\u73b0\uff1a<\/p>\n<ul>\n<li>ISA \u76f8\u5173\u7684\u5934\u6587\u4ef6\uff1a\u5b9a\u4e49 ISA \u76f8\u5173\u7684\u5bc4\u5b58\u5668\u4fe1\u606f\u3002<\/li>\n<li><code>init.c<\/code>\uff1a\u521d\u59cb\u5316\u76f8\u5173\u5bc4\u5b58\u5668\uff0c\u52a0\u8f7d\u9ed8\u8ba4\u7a0b\u5e8f\u3002<\/li>\n<li><code>inst.c<\/code>\uff1a\u6307\u4ee4\u6267\u884c\u76f8\u5173\u7684\u5b9e\u73b0\uff0c\u6309\u7167 2.2 \u8282\u7684\u63cf\u8ff0\uff0c\u8fd9\u91cc\u6211\u4eec\u9700\u8981\u5b9e\u73b0\u901a\u77e5\u6307\u4ee4\u6267\u884c\u5b8c\u6210\u7684\u56de\u8c03\u51fd\u6570\u3002<\/li>\n<li><code>reg.c<\/code>\uff1a\u5bc4\u5b58\u5668\u76f8\u5173\u7684\u64cd\u4f5c\u3002<\/li>\n<li><code>dut.c<\/code>\uff1a<code>difftest<\/code>\u7684\u6d4b\u8bd5\u8bbe\u5907\u76f8\u5173\u3002<\/li>\n<li><code>nmem.c<\/code>\uff1a\u63a5\u53d7 <code>NPC<\/code> \u7684\u8bbf\u95ee\u5185\u5b58\u8bf7\u6c42\u3002<\/li>\n<\/ul>\n<h3>3.3 NPC \u4eff\u771f\u5b9e\u73b0<\/h3>\n<blockquote><p>\u8fd9\u90e8\u5206\u4ee3\u7801\u4e0d\u59a8\u5b9e\u73b0\u5728 <code>$(NSIM_HOME)\/src\/verilator<\/code> \u7684\u76ee\u5f55\u4e2d\u3002\uff08\u4ea6\u53ef\u4ee5\u5176\u4ed6\u76ee\u5f55\uff09\u9700\u8981\u4fee\u6539 <code>.gitignore<\/code> \u4e22\u5f03\u4e00\u4e9b\u7f16\u8bd1\u4e2d\u95f4\u7684\u4ee3\u7801\u3002<\/p><\/blockquote>\n<p>\u9996\u5148\u9700\u8981\u7684\u662f <code>NPC<\/code> \u7684 RTL \u4ee3\u7801\uff0c\u53ef\u4ee5\u5c06 Chisel \u751f\u6210\u7684 RTL \u4ee3\u7801\u76f4\u63a5\u8fde\u63a5\u5230 <code>NSIM<\/code> \u76ee\u5f55\u4e0b\u3002\u4f7f\u7528 Verilator \u5c06\u8fd9\u4e9b RTL \u4ee3\u7801\u751f\u6210 C++ \u4ee3\u7801\u6587\u4ef6\uff0c\u65b9\u4fbf\u540e\u9762\u7f16\u7a0b\u7684\u8bed\u8a00\u670d\u52a1\u3002\u6309\u7167\u4eff\u771f\u9700\u6c42\uff0c\u5b9e\u73b0\u4ee5\u4e0b\u57fa\u672c\u7684\u51fd\u6570\uff1a<\/p>\n<ul>\n<li><code>step()<\/code>\uff1a\u6267\u884c\u4e00\u4e2a\u65f6\u949f\u5468\u671f\u7684\u51fd\u6570\u3002<\/li>\n<li><code>restart()<\/code>\uff1a\u91cd\u7f6e <code>NPC<\/code> \u7684\u51fd\u6570\u3002<code>NEMU<\/code> \u4e2d\u7684 <code>init.c<\/code> \u8c03\u7528\u8be5\u51fd\u6570\u53ef\u4ee5\u5b8c\u6210\u5bf9\u5904\u7406\u5668\u7684\u521d\u59cb\u5316\u3002<\/li>\n<li><code>exec_once()<\/code>\uff1a\u6267\u884c\u4e00\u6761\u6307\u4ee4\u3002<\/li>\n<li>\u4ee5\u53ca\u5176\u4ed6\u5404\u4e2a <code>DPI-C<\/code> \u8c03\u7528\u51fd\u6570\u7684\u5b9e\u73b0\u3002<\/li>\n<\/ul>\n<blockquote><p><strong>\u5982\u4f55\u77e5\u9053 <code>NPC<\/code> \u6267\u884c\u5b8c\u4e86\u4e00\u6761\u6307\u4ee4\uff1f<\/strong><\/p>\n<p>\u5728 2.2 \u8282\u4e2d\u6211\u4eec\u63d0\u5230\uff0c<code>NPC<\/code> \u901a\u8fc7 <code>DPI-C<\/code> \u8c03\u7528\u6765\u901a\u77e5\u6307\u4ee4\u7684\u5b8c\u6210\u3002\u7136\u800c\uff0c\u5728\u5b9e\u9645\u7684\u5b9e\u73b0\u4e2d\uff0c<code>DPI-C<\/code> \u51fd\u6570\u53ef\u80fd\u6709\u5f88\u591a\u4e2a\uff0c\u800c\u4e14\u6267\u884c\u987a\u5e8f\u4e0d\u592a\u80fd\u81ea\u5df1\u786e\u5b9a\uff08\u8ddf\u4fe1\u53f7\u4f20\u9012\u7684\u5148\u540e\u987a\u5e8f\u6709\u5173\uff09\uff0c\u6240\u4ee5\uff0c\u901a\u77e5\u6307\u4ee4\u5b8c\u6210\u7684\u8c03\u7528\u4e0d\u4e00\u5b9a\u662f\u771f\u6b63\u610f\u4e49\u4e0a\u7684\u201c\u6307\u4ee4\u5b8c\u6210\u201d\u3002<\/p>\n<p>\u4e3a\u4e86\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\uff0c\u6211\u4eec\u8bbe\u7f6e\u4e00\u4e2a\u5168\u5c40\u53d8\u91cf\uff0c\u8868\u793a\u4e00\u6761\u6307\u4ee4\u7684\u7ed3\u675f\u3002\u5f53\u53d1\u751f\u6307\u4ee4\u5b8c\u6210\u7684 <code>DPI-C<\/code> \u8c03\u7528\u65f6\uff0c\u4fee\u6539\u8fd9\u4e2a\u53d8\u91cf\u4e3a <code>true<\/code>\uff0c\u8868\u793a\u5df2\u7ecf\u5b8c\u6210\u3002\u7136\u540e\u7ed3\u675f\u8fd9\u4e2a\u65f6\u949f\u5468\u671f\u7684\u4eff\u771f\u4e4b\u540e\uff0c\u68c0\u67e5\u8fd9\u4e2a\u53d8\u91cf\u3002\u5982\u679c\u4e3a <code>true<\/code>\uff0c\u8fd9\u4e2a\u65f6\u5019\u624d\u662f\u8868\u793a\u4e00\u6761\u6307\u4ee4\u771f\u6b63\u610f\u4e49\u4e0a\u6267\u884c\u5b8c\u6210\u4e86\uff08\u6240\u6709\u7684 <code>NPC<\/code> \u7684\u72b6\u6001\u5df2\u7ecf\u66f4\u65b0\uff09\u3002\u6b64\u65f6\uff0c\u518d\u89e6\u53d1 <code>NEMU<\/code> \u7684\u56de\u8c03\u51fd\u6570\uff0c\u66f4\u65b0\u76f8\u5e94\u6267\u884c\u4fe1\u606f\u3002\u7c7b\u4f3c\u4e8e\u5f02\u6b65\u548c\u540c\u6b65\u4e86\u3002<\/p>\n<p><strong>DPI-C \u7684\u4e00\u4e9b\u7c7b\u578b\u5bf9\u5e94\u8868<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>SystemVerilog<\/th>\n<th>C++<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>logic<\/td>\n<td>svLogic<\/td>\n<\/tr>\n<tr>\n<td>int<\/td>\n<td>int<\/td>\n<\/tr>\n<tr>\n<td>longint<\/td>\n<td>long long<\/td>\n<\/tr>\n<tr>\n<td>byte<\/td>\n<td>char<\/td>\n<\/tr>\n<tr>\n<td>logic [63:0] regs[]<\/td>\n<td>svOpenArrayHandler<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u5bf9\u4e8e\u6700\u540e\u5bc4\u5b58\u5668\u6570\u7ec4\u7684\u8bfb\u53d6\uff0c\u53c2\u8003\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<p>\u4eff\u771f\u90e8\u5206\uff1a<\/p>\n<pre><code class=\"language-C++\">void output_gprs(const svOpenArrayHandle gprs) {\n  update_gprs((uint64_t*)(((VerilatedDpiOpenVar *)gprs)-&gt;datap()));\n}<\/code><\/pre>\n<p>SV \u90e8\u5206\uff1a<\/p>\n<pre><code class=\"language-systemverilog\">module(\n  \/\/ ...\n);\n  \/\/ ...\n  import \"DPI-C\" function void output_gprs(output logic [63:0] gprs[]);\n  \/\/ ...\nendmodule<\/code><\/pre>\n<\/blockquote>\n<h3>3.4 \u7f16\u8bd1\u94fe\u63a5<\/h3>\n<blockquote><p>\u4fee\u6539\u539f\u6709 <code>NEMU<\/code> \u7684 Makefile \u811a\u672c\uff0c\u4ee5\u652f\u6301\u4e00\u4e0b\u7f16\u8bd1\u5de5\u4f5c\u3002<\/p><\/blockquote>\n<p><code>NEMU<\/code> \u4ecd\u7136\u4f7f\u7528\u539f\u6709\u7684 <code>makefile<\/code> \u811a\u672c\u3002\u5bf9\u4e8e\u4eff\u771f\u4ee3\u7801\uff0c\u4f7f\u7528 <code>verilator<\/code> \u8fdb\u884c\u7f16\u8bd1\u3002\u6b64\u5904\u6211\u4eec\u5e76\u4e0d\u751f\u6210\u53ef\u6267\u884c\u6587\u4ef6\uff0c\u800c\u662f\u751f\u6210\u4e00\u4e2a\u5f52\u6863\u4f9b\u540e\u7eed <code>NEMU<\/code> \u94fe\u63a5\u4f7f\u7528\u3002<\/p>\n<blockquote><p><strong>\u5982\u4f55\u751f\u6210\u5f52\u6863\u6587\u4ef6\uff1f<\/strong><\/p>\n<p><a href=\"https:\/\/verilator.org\/guide\/latest\/verilating.html#binary-c-and-systemc-generation\">RTFM<\/a>\uff0c\u5c11 <code>--exe<\/code> \u7f16\u8bd1\u53c2\u6570\u5c31\u53ef\u4ee5\u4e86\u3002\u540c\u65f6\uff0cverilator \u63d0\u4f9b\u4e86\u4e00\u4e2a <code>--lib-create<\/code> \u7684\u9009\u9879\uff0c\u901a\u8fc7\u8fd9\u4e2a\u9009\u9879\uff0c\u53ef\u4ee5\u751f\u6210\u4e00\u4e2a <code>.a<\/code> \u9759\u6001\u94fe\u63a5\u6587\u4ef6\u548c\u4e00\u4e2a <code>.so<\/code> \u7684\u52a8\u6001\u94fe\u63a5\u6587\u4ef6\u3002<\/p><\/blockquote>\n<p>\u6700\u540e\u5c06 <code>.a<\/code> \u9759\u6001\u94fe\u63a5\u6587\u4ef6\u548c <code>NEMU<\/code> \u751f\u6210\u7684\u4e8c\u8fdb\u5236\u5bf9\u8c61\u6587\u4ef6\u4e00\u8d77\u94fe\u63a5\u5373\u53ef\u3002<\/p>\n<blockquote><p><strong>\u5982\u4f55\u5f00\u5173\u6ce2\u5f62\uff1f<\/strong><\/p>\n<p><code>NPC<\/code> \u4eff\u771f\u5c11\u4e0d\u4e86\u4f7f\u7528\u6ce2\u5f62\u8fdb\u884c Debug \u7684\u65f6\u5019\u3002\u4f46\u662f\u6ce2\u5f62\u8ffd\u8e2a\u7684\u5f00\u5173\u662f\u5728 <code>NEMU<\/code> \u4e2d\u8bbe\u7f6e\uff0c<code>verilator<\/code> \u7f16\u8bd1\u770b\u4e0d\u5230\u8fd9\u4e2a\u53d8\u91cf\uff0c\u5c31\u975e\u5e38\u7684\u68d8\u624b\uff0c\u56e0\u4e3a\u6839\u636e 2.3 \u8282\u7684\u63cf\u8ff0\uff0c\u4e24\u8005\u76f8\u4e92\u72ec\u7acb\u3002<\/p>\n<p>\u4e3a\u4e86\u65b9\u4fbf\u7f16\u8bd1\uff0c\u6211\u4eec\u8fd8\u662f\u4f1a\u5728 <code>NEMU<\/code> \u7684 Makefile \u811a\u672c\u4e2d\u8c03\u7528 <code>verialtor<\/code> \u8fdb\u884c\u7f16\u8bd1\u3002Makefile \u8fd8\u662f\u53ef\u4ee5\u770b\u5230\u81ea\u5df1\u914d\u7f6e\u7684\u8ffd\u8e2a\u5f00\u5173\u7684\uff0c\u5728\u8fd9\u91cc\u6839\u636e\u8ffd\u8e2a\u7684\u5f00\u5173\u9009\u9879\u5411 <code>verilator<\/code> \u4f20\u9012 <code>--CFLAGS<\/code> \u8fd0\u884c\u53c2\u6570\uff0c\u4f8b\u5982 <code>-DCONFIG_WTRACE<\/code>\u3002<\/p>\n<p><strong>\u8fd9\u91cc\u8fd8\u6709\u4e2a\u5c0f\u5751\uff0c<code>--CFLAGS<\/code> \u5fc5\u987b\u5728 verilator \u547d\u4ee4\u7684\u5408\u9002\u4f4d\u7f6e\u8fdb\u884c\u8bbe\u7f6e\u3002<\/strong><\/p><\/blockquote>\n<h2>4 \u603b\u7ed3<\/h2>\n<p>\u901a\u8fc7\u9605\u8bfb\u4e86 Verilator \u7684\u5168\u5c40 Makefile \u811a\u672c\uff0c\u4e86\u89e3\u4e86 Verilator \u7f16\u8bd1\u5f53\u4e2d\u7684\u7ec6\u8282\uff0c\u4e3a <code>NSIM<\/code> \u6210\u529f\u5b9e\u73b0\u63d0\u4f9b\u4e86\u53ef\u80fd\u3002<code>NSIM<\/code> \u4fbf\u5229\u4e86\u4eff\u771f\u73af\u5883\u7684\u5f00\u53d1\uff0c\u51cf\u5c11\u4e86\u51fa\u9519\u7684\u53ef\u80fd\u6027\uff0c\u4e5f\u5229\u4e8e\u4eff\u771f\u73af\u5883\u4ee3\u7801\u7684\u7ef4\u62a4\uff08\u57fa\u7840\u4ee3\u7801\u4ec5 <code>200<\/code> \u884c\u5de6\u53f3\uff09\uff1b\u540c\u65f6\uff0c\u53ef\u4ee5\u4f7f\u7528 <code>NEMU<\/code> \u4e0a\u7684\u5404\u79cd\u529f\u80fd\uff0c\u65b0\u529f\u80fd\u7684\u5f00\u53d1\u4e5f\u53ef\u4ee5\u76f4\u63a5\u5728 <code>NEMU<\/code> \u4e0a\u5f00\u53d1\uff0c\u4e0d\u9700\u8981\u5bf9\u4eff\u771f\u73af\u5883\u5355\u72ec\u8fdb\u884c\u79fb\u690d\u3002\u5dee\u5206\u6d4b\u8bd5\u7684\u65f6\u5019\uff0c<code>NSIM<\/code> \u4e5f\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528 <code>NEMU<\/code> \u5df2\u6709\u7684 <code>Spike<\/code> \u548c <code>QEMU<\/code> \u63a5\u53e3\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n<p><code>NSIM<\/code> \u4e5f\u7559\u4e0b\u4e86\u4e00\u4e9b\u6ca1\u6709\u5b8c\u6210\u7684\u5de5\u4f5c\u3002\u4f8b\u5982\uff0cMakefile \u4efb\u52a1\u7684\u524d\u540e\u4f9d\u8d56\u5173\u7cfb\uff0c\u5e76\u4f7f\u5176\u68c0\u6d4b\u5230 <code>NPC<\/code> \u7684 RTL \u53d1\u751f\u53d8\u5316\u65f6\uff0c\u5b8c\u6210 RTL \u7684\u7f16\u8bd1\u76f8\u5173\u4efb\u52a1\u3002<\/p>\n<blockquote><p><code>NSIM<\/code>\uff0c<code>NPC<\/code> \u4ee5\u53ca <code>NEMU<\/code> \u4e09\u8005\u662f\u76f8\u4e92\u72ec\u7acb\u53c8\u5177\u6709\u8054\u7cfb\u7684\uff0c\u4f46\u662f\u76ee\u524d\u6ca1\u6709\u5c06 <code>NPC<\/code> \u7684 Makefile \u548c <code>NSIM<\/code> \u7ed3\u5408\u8d77\u6765\u3002\u5f53 NPC \u7684\u4eff\u771f\u4ee3\u7801\u53d1\u751f\u53d8\u5316\u7684\u65f6\u5019\uff0c\u4ecd\u7136\u9700\u8981\u81ea\u5df1\u624b\u52a8\u7f16\u8bd1\u4e00\u6b21\u3002<\/p><\/blockquote>\n<p>\u6b64\u5916\uff0c<code>NEMU<\/code> \u4f5c\u4e3a\u53c2\u8003\u7684\u5dee\u5206\u6d4b\u8bd5\u5e76\u6ca1\u6709\u9002\u914d\u5728\u5176\u4e2d\uff0c\u9700\u8981\u540e\u9762\u7684\u5b8c\u5584\u3002<\/p>\n<h2>\u53c2\u8003\u6587\u732e<\/h2>\n<p><a href=\"https:\/\/github.com\/NJU-ProjectN\/nemu\">\u4e00\u751f\u4e00\u82af NEMU \u9879\u76ee<\/a><\/p>\n<p><a href=\"https:\/\/ysyx.oscc.cc\/docs\/\">\u4e00\u751f\u4e00\u82af\u8bb2\u4e49<\/a><\/p>\n<p><a href=\"https:\/\/verilator.org\/guide\/latest\/index.html\">verilator \u624b\u518c<\/a><\/p>\n<p><a href=\"https:\/\/www.doulos.com\/knowhow\/systemverilog\/systemverilog-tutorials\/systemverilog-dpi-tutorial\/\">systemverilog dpi-c turtorial<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8e NEMU \u7684\u6846\u67b6\u8fdb\u884c\u5c11\u91cf\u4fee\u6539\uff0c\u53ef\u4ee5\u5b9e\u73b0\u5728 NEMU \u4e2d\u5bf9 NPC \u8fdb\u884c\u4eff\u771f\uff0c\u65b9\u4fbf NPC \u7684\u4eff\u771f\u5f00\u53d1\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[15],"class_list":["post-153","post","type-post","status-publish","format-standard","hentry","category-cpu","tag-15"],"_links":{"self":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts\/153","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/comments?post=153"}],"version-history":[{"count":0,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/posts\/153\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/media?parent=153"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/categories?post=153"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.yewpo.top\/index.php\/wp-json\/wp\/v2\/tags?post=153"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}