{"action":"created","issue":{"url":"https://api.github.com/repos/aquynh/capstone/issues/641","repository_url":"https://api.github.com/repos/aquynh/capstone","labels_url":"https://api.github.com/repos/aquynh/capstone/issues/641/labels{/name}","comments_url":"https://api.github.com/repos/aquynh/capstone/issues/641/comments","events_url":"https://api.github.com/repos/aquynh/capstone/issues/641/events","html_url":"https://github.com/aquynh/capstone/issues/641","id":149587795,"number":641,"title":"Extra byte taken into instruction size","user":{"login":"10110111","id":6376882,"avatar_url":"https://avatars.githubusercontent.com/u/6376882?v=3","gravatar_id":"","url":"https://api.github.com/users/10110111","html_url":"https://github.com/10110111","followers_url":"https://api.github.com/users/10110111/followers","following_url":"https://api.github.com/users/10110111/following{/other_user}","gists_url":"https://api.github.com/users/10110111/gists{/gist_id}","starred_url":"https://api.github.com/users/10110111/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/10110111/subscriptions","organizations_url":"https://api.github.com/users/10110111/orgs","repos_url":"https://api.github.com/users/10110111/repos","events_url":"https://api.github.com/users/10110111/events{/privacy}","received_events_url":"https://api.github.com/users/10110111/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":1,"created_at":"2016-04-19T21:20:40Z","updated_at":"2016-04-20T02:03:37Z","closed_at":null,"body":"Here's what capstone gives me for an instruction in 32-bit mode:\r\n\r\n    0010008B   62 F1 74 DD 59 FC 90   vmulps zmm7 {k5} {z}, zmm1, zmm4, {rn-sae}\r\n\r\nThe `90` byte is actually a NOP, which is a separate instruction from `vmulps`. For comparison, here's what `objdump` gives me (rounding mode is another issue in Capstone):\r\n\r\n    0010008B   62 F1 74 DD 59 FC   vmulps zmm7{k5}{z},zmm1,zmm4,{ru-sae}"},"comment":{"url":"https://api.github.com/repos/aquynh/capstone/issues/comments/212209080","html_url":"https://github.com/aquynh/capstone/issues/641#issuecomment-212209080","issue_url":"https://api.github.com/repos/aquynh/capstone/issues/641","id":212209080,"user":{"login":"aquynh","id":5965536,"avatar_url":"https://avatars.githubusercontent.com/u/5965536?v=3","gravatar_id":"","url":"https://api.github.com/users/aquynh","html_url":"https://github.com/aquynh","followers_url":"https://api.github.com/users/aquynh/followers","following_url":"https://api.github.com/users/aquynh/following{/other_user}","gists_url":"https://api.github.com/users/aquynh/gists{/gist_id}","starred_url":"https://api.github.com/users/aquynh/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/aquynh/subscriptions","organizations_url":"https://api.github.com/users/aquynh/orgs","repos_url":"https://api.github.com/users/aquynh/repos","events_url":"https://api.github.com/users/aquynh/events{/privacy}","received_events_url":"https://api.github.com/users/aquynh/received_events","type":"User","site_admin":false},"created_at":"2016-04-20T02:03:37Z","updated_at":"2016-04-20T02:03:37Z","body":"confirmed. will see how to fix this, thanks!"}}