{"id":4731,"date":"2025-06-19T09:00:42","date_gmt":"2025-06-19T09:00:42","guid":{"rendered":"https:\/\/research.swissdigitization.ch\/?p=4731"},"modified":"2025-06-19T09:02:07","modified_gmt":"2025-06-19T09:02:07","slug":"sizecoding-snake-und-co-auf-dem-atari-st","status":"publish","type":"post","link":"https:\/\/research.swissdigitization.ch\/?p=4731","title":{"rendered":"SizeCoding &#8211; Snake und Co auf dem Atari ST"},"content":{"rendered":"\n<p>Einige Bilder aus dem Entwicklungsprozess. Es geht hier darum, wie man den Hintergrund des Spiels am einfachsten l\u00f6schen kann. Das Problem sind dabei, dass eine Linie in Bytes mit je 8 Pixeln aufgeteilt ist und jeweils 4 Bytes f\u00fcr eine Linie mit 16 Farben &#8218;codiert&#8216; (BitPlanes). Und  hier wird versucht mit m\u00f6glichst wenig aufwand den Screen im Memory zu l\u00f6schen bzw. nur eine Plane zu l\u00f6schen und so schnell wie m\u00f6glich.. <\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1262\" height=\"778\" src=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-21.02.01-1.png\" alt=\"\" class=\"wp-image-4736\" srcset=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-21.02.01-1.png 1262w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-21.02.01-1-300x185.png 300w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-21.02.01-1-768x473.png 768w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-21.02.01-1-624x385.png 624w\" sizes=\"auto, (max-width: 1262px) 100vw, 1262px\" \/><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1254\" height=\"802\" src=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.59.01-1.png\" alt=\"\" class=\"wp-image-4737\" srcset=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.59.01-1.png 1254w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.59.01-1-300x192.png 300w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.59.01-1-768x491.png 768w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.59.01-1-624x399.png 624w\" sizes=\"auto, (max-width: 1254px) 100vw, 1254px\" \/><\/figure>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-gallery has-nested-images columns-default is-cropped wp-block-gallery-1 is-layout-flex wp-block-gallery-is-layout-flex\">\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1262\" height=\"782\" data-id=\"4734\" src=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.57.28.png\" alt=\"\" class=\"wp-image-4734\" srcset=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.57.28.png 1262w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.57.28-300x186.png 300w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.57.28-768x476.png 768w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-20.57.28-624x387.png 624w\" sizes=\"auto, (max-width: 1262px) 100vw, 1262px\" \/><\/figure>\n<\/figure>\n\n\n\n<p>so sieht die funktionierende Funktion dann aus. Diese sollte optimiert werden.<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1272\" height=\"786\" src=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-12.21.59.png\" alt=\"\" class=\"wp-image-4738\" srcset=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-12.21.59.png 1272w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-12.21.59-300x185.png 300w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-12.21.59-768x475.png 768w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-15-um-12.21.59-624x386.png 624w\" sizes=\"auto, (max-width: 1272px) 100vw, 1272px\" \/><\/figure>\n\n\n\n<p>oder &#8222;platter&#8220; einfarbiger<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"1272\" height=\"796\" src=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-09-um-19.38.25.png\" alt=\"\" class=\"wp-image-4739\" srcset=\"https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-09-um-19.38.25.png 1272w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-09-um-19.38.25-300x188.png 300w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-09-um-19.38.25-768x481.png 768w, https:\/\/research.swissdigitization.ch\/wp-content\/uploads\/2025\/06\/Bildschirmfoto-2025-06-09-um-19.38.25-624x390.png 624w\" sizes=\"auto, (max-width: 1272px) 100vw, 1272px\" \/><\/figure>\n\n\n\n<p>als spiel. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Einige Bilder aus dem Entwicklungsprozess. Es geht hier darum, wie man den Hintergrund des Spiels am einfachsten l\u00f6schen kann. Das Problem sind dabei, dass eine Linie in Bytes mit je 8 Pixeln aufgeteilt ist und jeweils 4 Bytes f\u00fcr eine Linie mit 16 Farben &#8218;codiert&#8216; (BitPlanes). Und hier wird versucht mit m\u00f6glichst wenig aufwand den [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-4731","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=\/wp\/v2\/posts\/4731","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=4731"}],"version-history":[{"count":3,"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=\/wp\/v2\/posts\/4731\/revisions"}],"predecessor-version":[{"id":4742,"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=\/wp\/v2\/posts\/4731\/revisions\/4742"}],"wp:attachment":[{"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=4731"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=4731"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/research.swissdigitization.ch\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=4731"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}