{"id":924,"date":"2019-02-06T12:57:13","date_gmt":"2019-02-06T03:57:13","guid":{"rendered":"http:\/\/bellsprite.com\/?p=924"},"modified":"2019-03-11T12:35:13","modified_gmt":"2019-03-11T03:35:13","slug":"nes%e6%a8%a1%e6%8b%9f%e5%99%a8%e5%bc%80%e5%8f%91%e8%ae%b0%e5%bd%95%ef%bc%88%e4%b8%80%ef%bc%89","status":"publish","type":"post","link":"https:\/\/bellsprite.com\/?p=924","title":{"rendered":"nes\u6a21\u62df\u5668\u5f00\u53d1\u8bb0\u5f55\uff08\u4e00\uff09"},"content":{"rendered":"

\"nes\"<\/a><\/p>\n

\u5982\u56fe\uff0c\u6211\u6b63\u5728\u5f00\u53d1nes\u6a21\u62df\u5668\uff0c\u4e5f\u5c31\u662f2018\u5e745\u6708\u4efd\u8fd9\u7bc7<\/a>\u65e5\u5fd7\u91cc\u8bf4\u7684\u9ec4\u5361\u6e38\u620f\u673a\u7684\u6a21\u62df\u5668\u3002
\u672c\u6765\u60f3\u7b49\u5230\u505a\u5b8c\u4e4b\u540e\u518d\u7a81\u7136\u8d34\u51fa\u6765\u7684\uff0c\u4e0d\u8fc7\u8fd9\u4e2a\u4e2a\u4eba\u9879\u76ee\u5b9e\u5728\u662f\u62d6\u7684\u592a\u4e45\u4e86\uff0c\u5176\u4e2d\u6709\u5f88\u591a\u611f\u60f3\u6211\u62c5\u5fc3\u5230\u6700\u540e\u5199\u65e5\u5fd7\u7684\u65f6\u5019\u5df2\u7ecf\u5fd8\u8bb0\u4e86\uff0c\u6240\u4ee5\u8fd8\u662f\u4ee5\u5b9a\u671f\u603b\u7ed3\u8bb0\u5f55\u7684\u5f62\u5f0f\u53d1\u51fa\u6765\u5427\u3002<\/p>\n

\u5173\u4e8enes\u6a21\u62df\u5668\u7684\u5f00\u53d1\u96be\u5ea6\u3002<\/strong>
\u5f00\u53d1nes\u6a21\u62df\u5668\u5bf9\u6280\u672f\u6df1\u5ea6\u6ca1\u6709\u8981\u6c42\uff0c\u53ef\u4ee5\u8bf4\u4f1a\u5199\u7a0b\u5e8f\uff0c\u4f1a\u663e\u793a\u56fe\u50cf\uff0c\u4f1a\u64ad\u653e\u58f0\u97f3\u7684\u4eba\u5c31\u80fd\u5f00\u53d1\u3002\u53ea\u662f\u6a21\u62df\u5668\u7684\u7ec6\u8282\u6bd4\u8f83\u591a\uff0c\u6240\u4ee5\u505a\u8d77\u6765\u8017\u65f6\u6bd4\u8f83\u957f\uff0c\u6709\u70b9\u7d2f\u800c\u5df2\u3002\u548c\u81ea\u5df1\u8bbe\u8ba1\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u5440\u6e38\u620f\u4ec0\u4e48\u7684\u6bd4\u8d77\u6765\uff0c\u5236\u4f5c\u6a21\u62df\u5668\u7684\u597d\u5904\u5728\u4e8e\u5b8c\u5168\u7701\u7565\u4e86\u8bbe\u8ba1\u90e8\u5206\uff0c\u6240\u6709\u7684\u8bbe\u8ba1\u7ec6\u8282\u90fd\u662f\u73b0\u6210\u7684\uff0c\u4f60\u53ea\u9700\u8981\u5145\u5206\u65bd\u5c55\u4f60\u7684\u5de5\u7a0b\u80fd\u529b\u5373\u53ef\u3002\u5bf9\u4e8e\u6211\u8fd9\u79cd\u6ca1\u6709\u4ea7\u54c1\u80fd\u529b\u6ca1\u6709\u8425\u9500\u80fd\u529b\u552f\u72ec\u559c\u6b22\u641e\u5de5\u7a0b\u7684\u4eba\u6765\u8bf4\u662f\u6700\u9002\u5408\u7684\u4e1a\u4f59\u9879\u76ee\u4e86\u3002\u8bf4\u8d77\u6765\u81ea\u5df1\u91cd\u65b0\u5b9e\u73b0\u4e00\u4e9brfc\u534f\u8bae\u4e5f\u6709\u7c7b\u4f3c\u7684\u4e50\u8da3\uff0c\u8fd8\u662f\u6211\u90a3\u4e2a\u63d0\u4e86\u4e00\u4e07\u56de\u7684\u81ea\u5236http\u670d\u52a1\u5668\u9879\u76ee\uff0c\u5c31\u662f\u91cd\u65b0\u5b9e\u73b0rfc2616\uff0c\u4e5f\u662f\u4e50\u8da3\u65e0\u7a77\u3002<\/p>\n

\u518d\u4ecb\u7ecd\u4e00\u4e0b\u6211\u73b0\u5728\u7684\u8fdb\u5ea6\u3002<\/strong>
\u5982\u56fe\u6240\u793a\uff0c\u6211\u73b0\u5728\u505a\u5230\u4e86\u6b63\u786e\u663e\u793a\u6e38\u620f\u5185\u7684\u80cc\u666f\u56fe\u50cf\u4e86\u3002\u5177\u4f53\u6765\u8bf4\u5c31\u662f\u5b9e\u73b0\u4e86\u5168\u90e8\u7684cpu\u6307\u4ee4\uff0c\u5b9e\u73b0\u4e86\u663e\u793a\u80cc\u666fnametable\u4e2d\u7684\u5185\u5bb9\u3002
\u6ca1\u5b9e\u73b0\u7684\u5462\uff0c\u4e3b\u8981\u662f\u97f3\u9891\u5b8c\u5168\u6ca1\u505a\uff0c\u624b\u67c4\u64cd\u4f5c\u5b8c\u5168\u6ca1\u505a\uff0c\u5c4f\u5e55\u6eda\u52a8\u8fd8\u6ca1\u505a\uff0c\u751a\u81f3\u6309\u56fa\u5b9a\u5e27\u7387\u6267\u884c\u6e38\u620f\u90fd\u8fd8\u6ca1\u505a\u3002\u4e0a\u9762\u7684\u622a\u56fe\u662f\u6211\u987a\u5e8f\u6267\u884c\u4e86\u5927\u7ea6350000\u6761\u6c47\u7f16\u6307\u4ee4\u540e\u7684\u6548\u679c\u3002\u4e0d\u8fc7\u8fd9\u4e2a\u56fa\u5b9a\u5e27\u7387\u4e0d\u96be\uff0c\u6211\u56e0\u4e3a\u4e00\u76f4\u5728\u4fee\u4e00\u4e9b\u4f4e\u7ea7bug\uff0c\u90fd\u662f\u8dd1\u51e0\u5e27\u5c31\u51fa\u95ee\u9898\u7684\u5730\u65b9\uff0c\u6240\u4ee5\u5c31\u6ca1\u7740\u6025\u505a\u6309\u5e27\u7387\u6267\u884c\u3002<\/p>\n

\u5173\u4e8e\u8fd9\u4e2a\u9879\u76ee\u7684\u9884\u671f\u65f6\u95f4\u6295\u5165\u3002<\/strong>
\u76ee\u524d\u770b\u6765\u603b\u65f6\u95f4\u6295\u5165\u8981\u5728200\u5c0f\u65f6\u751a\u81f3\u4ee5\u4e0a\u4e86\u3002\u5f53\u521d\u89c9\u5f97\u81ea\u5df1\u4e24\u4e2a\u793c\u62dc\u5c31\u80fd\u641e\u5b9a\uff0c\u771f\u662f\u592a\u53ef\u7b11\u4e86\u3002
\u65f6\u95f4\u5206\u914d\u4e0a\uff0c\u9605\u8bfb\u548c\u67e5\u9605\u6587\u6863\u548c\u53c2\u8003\u9879\u76ee\u8981\u536070%\u7684\u65f6\u95f4\uff0c\u4ee3\u7801\u5b9e\u73b0\u536010%\u7684\u65f6\u95f4\uff0c\u4feebug\u5360\u5269\u4f59\u768420%\u7684\u65f6\u95f4\uff0c\u5927\u6982\u662f\u8fd9\u6837\u3002\u56e0\u4e3anes\u6a21\u62df\u5668\u662f\u4e00\u4e2a\u6bd4\u8f83\u5e38\u89c1\u7684\u4e2a\u4eba\u9879\u76ee\u9009\u9898\uff0cgithub\u4e0a\u6709\u5f88\u591a\u522b\u4eba\u5b9e\u73b0\u597d\u7684\u9879\u76ee\u53ef\u4ee5\u53c2\u8003\uff0c\u6211\u751a\u81f3\u53ef\u4ee5\u5b9e\u9645\u8fd0\u884c\u522b\u4eba\u7684\u6a21\u62df\u5668\uff0c\u9010\u547d\u4ee4\u6bd4\u8f83\u6211\u548c\u4ed6\u6267\u884c\u7ed3\u679c\u7684\u4e0d\u540c\uff0c\u6240\u4ee5\u8c03\u8bd5\u65b9\u9762\u5df2\u7ecf\u6bd4\u65e9\u671f\u90a3\u4e9b\u7b2c\u4e00\u4ee3\u505a\u6a21\u62df\u5668\u7684\u4eba\u4eec\u7b80\u5355\u5f88\u591a\u4e86\u3002\u4f46\u8d8a\u505a\u5230\u540e\u9762\u9047\u5230\u7684\u786c\u4ef6\u7ec6\u8282\u8d8a\u591a\uff0c\u800c\u4e14\u9519\u8bef\u8d8a\u6765\u8d8a\u9690\u853d\uff0c\u8fd8\u662f\u82b1\u6389\u4e86\u6211\u4e24\u500d\u4e8e\u5f00\u53d1\u7684\u65f6\u95f4\u6765\u8c03\u8bd5bug\u3002\u5982\u679c\u8fd9\u4e2a\u8d8b\u52bf\u7ee7\u7eed\u6076\u5316\u7684\u8bdd\uff0c\u6211\u63a5\u4e0b\u6765\u8981\u8003\u8651\u5148\u505a\u4e00\u4e2a\u9ad8\u6548\u7387\u7684\u6a21\u62df\u5668\u8c03\u8bd5\u5668\u4e86\u3002<\/p>\n

\u6700\u540e\u8bb0\u5f55\u51e0\u4e2a\u6211\u8e29\u8fc7\u7684\u5751\uff0c\u7559\u7ed9\u672a\u6765\u7684\u81ea\u5df1\u56de\u987e\u65f6\u56de\u5fc6\u3002<\/strong>
1. cpu\u8bfb\u53d6\u5f53\u524d\u663e\u5b58\u5730\u5740\u7684\u5185\u5bb9\u65f6\uff0c\u5f97\u5230\u7684\u6c38\u8fdc\u662f\u81ea\u5df1\u4e0a\u4e00\u6b21\u8bfb\u53d6\u663e\u5b58\u65f6\u7684\u7f13\u5b58\u503c\uff01 \uff08https:\/\/wiki.nesdev.com\/w\/index.php\/PPU_registers#The_PPUDATA_read_buffer_.28post-fetch.29<\/a>\uff09
\u8fd9\u4e2a\u592a\u53cd\u76f4\u89c9\u4e86\uff0c\u4e00\u5b9a\u662f\u5f53\u65f6\u7684\u786c\u4ef6\u9650\u5236\u5bfc\u81f4\u7684\u3002\u6ca1\u6709\u6b63\u786e\u5b9e\u73b0\u8fd9\u4e2a\u7ec6\u8282\u5bfc\u81f4\u6211\u7684\u5730\u56fe\u8d34\u56fe\u5e8f\u53f7\u90e8\u5206\u51fa\u73b0\u4e86\u9519\u8bef\uff0c\u751a\u81f3\u6211\u7684\u8d34\u56fe\u56fe\u6848\u90fd\u88ab\u6c61\u67d3\u4e86\u4e00\u90e8\u5206\u3002<\/p>\n

\"broken-nes\"<\/a><\/p>\n

\u6bd4\u5982\u4e0b\u56fe\u7684\u4e0a\u8fb9\u4e24\u5f20\u662f\u539f\u59cb\u7684\u8d34\u56fe\uff0c\u4e0b\u8fb9\u662f\u88ab\u6c61\u67d3\u540e\u7684\u8d34\u56fe\u3002\u4e3a\u4e86\u6e05\u695a\u5206\u8fa8\uff0c\u6211\u7ed9\u4ed6\u4eec\u4e0a\u4e86\u6bd4\u8f83\u8273\u4e3d\u7684\u989c\u8272\u3002\u53ef\u4ee5\u770b\u5230\u53f3\u4e0b\u7684\u00a9\u4e2d\u95f4\u88ab\u6c61\u67d3\u4e86\uff0c\u663e\u793a\u5728\u5c4f\u5e55\u4e0a\u5c31\u662f\u4e2d\u95f4\u51fa\u73b0\u4e86\u4e00\u4e9b\u591a\u4f59\u7684\u9ed1\u8272\u7684\u50cf\u7d20\u3002<\/p>\n

\"broken-texture\"<\/a><\/p>\n

\u8c03\u67e5\u8fd9\u4e2abug\u82b1\u4e86\u6211\u5927\u6982\u4e00\u6574\u4e2a\u4e0a\u5348\u7684\u65f6\u95f4\uff0c\u671f\u95f4\u53d1\u73b0\u7528chrome\u8c03\u8bd5\u9762\u677f\u5728\u9ad8\u9891\u6267\u884c\u5904\u4e0b\u65ad\u70b9\u4f1a\u6781\u5927\u7684\u5f71\u54cd\u7a0b\u5e8f\u6267\u884c\u901f\u5ea6\uff0c\u751a\u81f3\u6709\u65f6\u5019\u4f1a\u5185\u5b58\u4f7f\u7528\u91cf\u8fc7\u5927\u5bfc\u81f4\u9875\u9762\u5d29\u6e83\u3002\u5c31\u662f\u90a3\u65f6\u5019\u6211\u5f00\u59cb\u8003\u8651\u662f\u4e0d\u662f\u5e94\u8be5\u505a\u4e00\u4e2a\u6a21\u62df\u5668\u4e13\u7528\u8c03\u8bd5\u5668\u4e86\u3002<\/p>\n

2. 2d canvas \u7684\u7ed8\u5236\u6548\u7387\u3002
html5\u7684canvas\u6211\u5de5\u4f5c\u4e2d\u7ecf\u5e38\u63a5\u89e6\uff0c\u4f46\u5927\u591a\u662f\u5728\u4f7f\u7528\u73b0\u6709\u7ed8\u5236\u5e93\u7684\u57fa\u7840\u4e0a\u3002\u5f92\u624b\u64cd\u4f5ccanvas\u7ed8\u5236\u65f6\u7684\u7ed8\u5236\u6548\u7387\u65b9\u9762\u6211\u4e4b\u524d\u5e76\u6ca1\u6709\u7814\u7a76\u3002
\u6700\u5f00\u59cb\u6211\u6309\u7167\u6211\u77e5\u9053\u7684\u65b9\u6cd5\uff0c ctx.fillStyle=”rgb(r,g,b)”; ctx.fillRect(x, y, 1, 1); \u6765\u7ed8\u5236\u6bcf\u4e00\u4e2a\u50cf\u7d20\u3002\u4e00\u5e27\u4e24\u5e27\u8fd8\u597d\uff0c\u5f53\u6211\u6267\u884c\u5230\u4e00\u53e3\u6c14\u7ed8\u523630\u591a\u5e27\u7684\u65f6\u5019\uff0c\u7ed8\u5236\u90e8\u5206\u7684\u8017\u65f6\u9661\u589e\u52305\u79d2\u591a\u3002\u5f53\u65f6\u6211\u5c31\u610f\u8bc6\u5230\u65b9\u6cd5\u9519\u4e86\u3002\u6bd5\u7adf\u6709\u73b0\u6210\u7684jsnes\u6a21\u62df\u5668\uff0c\u6bcf\u79d2\u8dd160\u5e27\u90fd\u6ca1\u95ee\u9898\u7684\uff0c\u6240\u4ee5\u80af\u5b9a\u6709\u66f4\u9ad8\u6548\u7684\u7ed8\u5236\u65b9\u6cd5\u3002
\u7a0d\u5fae\u641c\u4e86\u4e00\u4e0b\uff0c\u627e\u5230\u4e86\u521b\u5efa imagedata\uff0c\u7136\u540e\u76f4\u63a5\u4fee\u6539 imagedata.data \u6570\u7ec4\u91cc\u7684\u6570\u5b57\u6765\u8bbe\u7f6e\u6bcf\u4e2a\u50cf\u7d20\u7684\u989c\u8272\uff0c\u6700\u540e\u628aimagedata\u6574\u4e2a\u753b\u5230 canvas \u4e0a\u7684\u65b9\u6cd5\u3002\u6362\u8fd9\u4e2a\u65b9\u6cd5\u4ee5\u540e\u7ed8\u5236\u90e8\u5206\u8017\u65f6\u53ea\u6709\u539f\u6765\u76841\/10\u4e86\u3002\u867d\u7136\u79bb60\u5e27\u6bcf\u79d2\u8fd8\u6709\u4e00\u70b9\u8ddd\u79bb\uff0c\u4f46\u81f3\u5c11\u4e0d\u5f71\u54cd\u6211\u8c03\u8bd5\u4e86\uff0c\u6682\u65f6\u5148\u8fd9\u6837\u5427\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"

\u5982\u56fe\uff0c\u6211\u6b63\u5728\u5f00\u53d1nes\u6a21\u62df\u5668\uff0c\u4e5f\u5c31\u662f2018\u5e745\u6708\u4efd\u8fd9\u7bc7\u65e5\u5fd7\u91cc\u8bf4\u7684\u9ec4\u5361\u6e38\u620f\u673a\u7684\u6a21\u62df\u5668\u3002\u672c\u6765\u60f3\u7b49\u5230\u505a\u5b8c\u4e4b\u540e\u518d\u7a81\u7136 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_themeisle_gutenberg_block_has_review":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-924","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"views":5030,"_links":{"self":[{"href":"https:\/\/bellsprite.com\/index.php?rest_route=\/wp\/v2\/posts\/924","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bellsprite.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bellsprite.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bellsprite.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bellsprite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=924"}],"version-history":[{"count":3,"href":"https:\/\/bellsprite.com\/index.php?rest_route=\/wp\/v2\/posts\/924\/revisions"}],"predecessor-version":[{"id":955,"href":"https:\/\/bellsprite.com\/index.php?rest_route=\/wp\/v2\/posts\/924\/revisions\/955"}],"wp:attachment":[{"href":"https:\/\/bellsprite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=924"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bellsprite.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=924"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bellsprite.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=924"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}