{"topic":{"id":11122,"title":"x86 指令详细编码在哪里可以找到？","slug":"topic","categoryId":58,"createdAt":"2024-03-31 07:30:45.482094","bumpedAt":"2024-04-02 03:07:27.66366","views":262,"postsCount":5,"highestPostNumber":5,"likeCount":4,"closed":false,"pinned":false,"pinnedGlobally":false,"pinnedAt":null,"pinnedUntil":null,"isBanner":false,"excerpt":"像网站上这种详细的编码 Google 上也没有找到这么详细的 🥲","deletedAt":null,"isAnonymous":false,"category":{"id":58,"name":"计算机系统导论","slug":"ics","color":"3AB54A"},"author":{"id":1081,"username":"KON","name":null,"avatarUrl":"/uploads/image/9f/35/9f3549f065dc7f323da5ebdb5fce01f65bbf19dbd566d5b3d817a08a7b59e7fd.avif"},"tags":[]},"posts":[{"id":28255,"postNumber":1,"raw":"像网站上这种详细的编码\n\n![图片|690x216](/uploads/image/75/b5/75b512a4792394a7e564d140891fb5d460da9235fd6f7d4a6288f179b397c89a.avif)\n\nGoogle 上也没有找到这么详细的 :smiling_face_with_tear:","cooked":"

像网站上这种详细的编码

$\"图片\"$

Google 上也没有找到这么详细的 🥲

\n","createdAt":"2024-03-31 07:30:45.576852","updatedAt":"2024-03-31 07:30:45.576852","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":28,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1081,"username":"KON","name":null,"avatarUrl":"/uploads/image/9f/35/9f3549f065dc7f323da5ebdb5fce01f65bbf19dbd566d5b3d817a08a7b59e7fd.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":28268,"postNumber":2,"raw":"https://defuse.ca/online-x86-assembler.htm\n这个工具可以帮你转换汇编代码，正反都可以。不过这个工具似乎把 Source Reg 和 Destination Reg 搞反了。例如 mov %rax,%rdi 的机器码是 48 89 c7，而在这个工具里，输入 mov %rax,%rdi 得到的结果是 48 89 f8，输入 mov %rdi,%rax 得到的结果才是 48 89 c7。\n另外寄存器以 r 开头的是 x86-64（或 x64）架构，而不是 x86 架构，详情见下图\n![图片|690x495](/uploads/image/7d/11/7d11cf0062634574fd4191abb4202fd2fc01992d177e97371c8c5c9ee6610442.avif)","cooked":"\n这个工具可以帮你转换汇编代码，正反都可以。不过这个工具似乎把 Source Reg 和 Destination Reg 搞反了。例如 mov %rax,%rdi 的机器码是 48 89 c7，而在这个工具里，输入 mov %rax,%rdi 得到的结果是 48 89 f8，输入 mov %rdi,%rax 得到的结果才是 48 89 c7。\n另外寄存器以 r 开头的是 x86-64（或 x64）架构，而不是 x86 架构，详情见下图\n![图片|690x495](/uploads/image/7d/11/7d11cf0062634574fd4191abb4202fd2fc01992d177e97371c8c5c9ee6610442.avif)","createdAt":"2024-03-31 10:55:50.824872","updatedAt":"2024-03-31 10:55:50.824872","replyToPostNumber":null,"replyCount":0,"likeCount":3,"wordCount":120,"liked":false,"bookmarked":false,"polls":[],"reactions":[{"reaction":"❤️","count":3,"users":[{"id":1047,"username":"anonymous_coward_old","name":"Anonymous Coward Old"},{"id":1081,"username":"KON","name":null},{"id":3273,"username":"anon18815924","name":null}],"hasReacted":false}],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":3285,"username":"platypus","name":"platypus","avatarUrl":"/uploads/image/8d/c9/8dc95eb138bc6d59e76c2244407a8c6ae1f8cf33049c520cabbde1e4145f38ac.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":28275,"postNumber":3,"raw":"不存在反不反的问题，单纯 AT&T 和微软的规范不一样","cooked":"

不存在反不反的问题，单纯 AT&T 和微软的规范不一样

\n","createdAt":"2024-03-31 12:32:42.102138","updatedAt":"2024-03-31 12:32:42.102138","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":22,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":1047,"username":"anonymous_coward_old","name":"Anonymous Coward Old","avatarUrl":"/uploads/image/43/32/4332638c11248b8ff07033c11de0759a55205facfbec85e14458245a91991faf.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":28278,"postNumber":4,"raw":"Thanks for the clarification. This page might be helpful for your reference:\nhttps://staffwww.fullcoll.edu/aclifton/courses/cs241/syntax.html\nps: there is one thing I want to correct, it's not that AT&T vs Microsoft, it's that AT&T vs Intel","cooked":"

Thanks for the clarification. This page might be helpful for your reference:

https://staffwww.fullcoll.edu/aclifton/courses/cs241/syntax.html

\nps: there is one thing I want to correct, it's not that AT&T vs Microsoft, it's that AT&T vs Intel","createdAt":"2024-03-31 13:24:14.561787","updatedAt":"2024-03-31 13:24:14.561787","replyToPostNumber":null,"replyCount":0,"likeCount":1,"wordCount":33,"liked":false,"bookmarked":false,"polls":[],"reactions":[{"reaction":"❤️","count":1,"users":[{"id":1047,"username":"anonymous_coward_old","name":"Anonymous Coward Old"}],"hasReacted":false}],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":3285,"username":"platypus","name":"platypus","avatarUrl":"/uploads/image/8d/c9/8dc95eb138bc6d59e76c2244407a8c6ae1f8cf33049c520cabbde1e4145f38ac.avif","admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}},{"id":28420,"postNumber":5,"raw":"使用 `gcc -c example.s`，lab3 的附录 B 里有讲","cooked":"

使用 gcc -c example.s，lab3 的附录 B 里有讲

\n","createdAt":"2024-04-02 03:07:27.66366","updatedAt":"2024-04-02 03:07:27.66366","replyToPostNumber":null,"replyCount":0,"likeCount":0,"wordCount":12,"liked":false,"bookmarked":false,"polls":[],"reactions":[],"wiki":false,"version":1,"publicVersion":1,"deletedAt":null,"isAnonymous":false,"user":{"id":167,"username":"_Veritas","name":null,"avatarUrl":null,"admin":false,"moderator":false,"signatureRaw":null,"signatureCooked":null}}],"hasMore":false,"lastReadPostNumber":1,"hasUrlPostNumber":false}