{"id":724,"date":"2022-10-23T20:53:34","date_gmt":"2022-10-23T20:53:34","guid":{"rendered":"https:\/\/www.root42.de\/blog\/?p=724"},"modified":"2022-10-23T20:53:34","modified_gmt":"2022-10-23T20:53:34","slug":"lets-code-x86-assembly-0x07-text-mode-plasma","status":"publish","type":"post","link":"https:\/\/www.root42.de\/blog\/?p=724","title":{"rendered":"Let\u2019s Code x86 Assembly: 0x07 Text Mode Plasma"},"content":{"rendered":"\n<p>In this episode of our tour through the 8086 assembly language, we learn a few new opcodes and concepts CBW makes an appearance, as does the powerful XLAT for looking up values in \u2026 look-up tables! We use this to make a text mode plasma like effect. It is a bit simpler compared to what we did in another episode on the VGA card, but this time the executable is tiny, coming in at less than 170 bytes. We talk a bit about how to access screen memory in text mode and how to query the real time clock in the PC.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Let\u2019s Code x86 Assembly: 0x07 Text Mode Plasma\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/R9BpxJ0b7u8?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>In this episode of our tour through the 8086 assembly language, we learn a few new opcodes and concepts CBW makes an appearance, as does the powerful XLAT for looking up values in \u2026 look-up tables! We use this to make a text mode plasma like effect. It is a bit simpler compared to what &hellip; <a href=\"https:\/\/www.root42.de\/blog\/?p=724\" class=\"more-link\">Continue reading<span class=\"screen-reader-text\"> &#8220;Let\u2019s Code x86 Assembly: 0x07 Text Mode Plasma&#8221;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/724"}],"collection":[{"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=724"}],"version-history":[{"count":1,"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/724\/revisions"}],"predecessor-version":[{"id":725,"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=\/wp\/v2\/posts\/724\/revisions\/725"}],"wp:attachment":[{"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=724"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=724"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.root42.de\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=724"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}