{"action":"closed","issue":{"url":"https://api.github.com/repos/openMSX/openMSX/issues/155","labels_url":"https://api.github.com/repos/openMSX/openMSX/issues/155/labels{/name}","comments_url":"https://api.github.com/repos/openMSX/openMSX/issues/155/comments","events_url":"https://api.github.com/repos/openMSX/openMSX/issues/155/events","html_url":"https://github.com/openMSX/openMSX/issues/155","id":90031180,"number":155,"title":"[Feature] ADVRAM support [sf#131]","user":{"login":"openMSX-import","id":12987176,"avatar_url":"https://avatars.githubusercontent.com/u/12987176?v=3","gravatar_id":"","url":"https://api.github.com/users/openMSX-import","html_url":"https://github.com/openMSX-import","followers_url":"https://api.github.com/users/openMSX-import/followers","following_url":"https://api.github.com/users/openMSX-import/following{/other_user}","gists_url":"https://api.github.com/users/openMSX-import/gists{/gist_id}","starred_url":"https://api.github.com/users/openMSX-import/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/openMSX-import/subscriptions","organizations_url":"https://api.github.com/users/openMSX-import/orgs","repos_url":"https://api.github.com/users/openMSX-import/repos","events_url":"https://api.github.com/users/openMSX-import/events{/privacy}","received_events_url":"https://api.github.com/users/openMSX-import/received_events","type":"User","site_admin":false},"labels":[{"url":"https://api.github.com/repos/openMSX/openMSX/labels/feature%20request","name":"feature request","color":"84b6eb"},{"url":"https://api.github.com/repos/openMSX/openMSX/labels/MSX%20devices%20support","name":"MSX devices support","color":"ededed"}],"state":"closed","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-06-22T07:27:22Z","updated_at":"2015-06-22T07:30:34Z","closed_at":"2015-06-22T07:30:34Z","body":"**Reported by arnoldmnl on 2005-09-26 18:17 UTC**\nGrupo MSX projetos has made an extension called ADVRAM\r\nthat allows the CPU to directly access the VRAM, see\r\nhttp://www.carchano.com.br/portal/msxprojetos.asp -&gt;\r\nadvram. \r\n\r\nFor those with limited understanding of Portugese:\r\n\r\n\\* The video ram appears as a memory mapper in page 2 of\r\nslot 0, both reading and writing are supported. \r\n\\* Selecting a 16 KiB block from the Vram is done with\r\nwith the standard mapper register on port 0xFE. \r\n\\* LD A,1 followed by IN A,\\(9AH\\) sets interleaved mode\r\nas used in screen 7 and higher.\r\n\\* LD A,0 followed by IN A,\\(9AH\\) sets normal mode as\r\nused in screen 6 and lower.\r\n\r\nIt would be nice to support this in openMSX"}}