{"id":2666,"date":"2020-04-03T11:34:39","date_gmt":"2020-04-03T09:34:39","guid":{"rendered":"https:\/\/www.jesperjuul.net\/ludologist\/?p=2666"},"modified":"2020-04-03T11:34:39","modified_gmt":"2020-04-03T09:34:39","slug":"petscii-jetski-a-c64-game-in-basic","status":"publish","type":"post","link":"https:\/\/www.jesperjuul.net\/ludologist\/2020\/04\/03\/petscii-jetski-a-c64-game-in-basic\/","title":{"rendered":"Petscii Jetski – a C64 game in BASIC"},"content":{"rendered":"
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Introducing Petscii Jetski<\/a>!\"\"<\/a><\/span><\/div>\n<\/div>\n
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\u00a0<\/span><\/div>\n<\/div>\n
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Instigated by Nick Montfort<\/a>, we returned to the Commodore 64 to write a 10-line game & visual poem.<\/span><\/div>\n
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A very long time ago I used to be into C64 programming, at first BASIC and later assembly. I have severe existential reservations about going back to “things that I gave up years ago”, but it really was like coming home in a holy & broken sort of way.<\/span><\/div>\n
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In a world full of ever-shifting Javascript preprocessors and package managers, a simple predictable machine is a comfort, and yet the BASIC implementation is excruciatingly slow and full of strange decisions. For example, on this 1 Mhz machine, the BASIC implementation only runs floating point, which is really slow. This meant that the C64 was special in that assembly was perhaps a 1000 times faster than BASIC, a much bigger difference than in modern languages.<\/span><\/div>\n<\/div>\n
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\u00a0<\/span><\/div>\n<\/div>\n
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Play Petscii Jetski online at https:\/\/nickm.com\/montfort_juul\/petscii_jetski\/<\/a> and read a detailed discussion of BASIC optimization at https:\/\/nickm.com\/trope_tank\/TROPE-20-01.pdf<\/a><\/span><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Introducing Petscii Jetski! \u00a0 Instigated by Nick Montfort, we returned to the Commodore 64 to write a 10-line game & visual poem. A very long time ago I used to be into C64 programming, at first BASIC and later assembly. I have severe existential reservations about going back to “things that I gave up years … Continue reading “Petscii Jetski – a C64 game in BASIC”<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"footnotes":""},"categories":[8,10,2],"tags":[],"class_list":["post-2666","post","type-post","status-publish","format-standard","hentry","category-actual-games","category-game-design","category-games"],"_links":{"self":[{"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/posts\/2666","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/comments?post=2666"}],"version-history":[{"count":4,"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/posts\/2666\/revisions"}],"predecessor-version":[{"id":2671,"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/posts\/2666\/revisions\/2671"}],"wp:attachment":[{"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/media?parent=2666"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/categories?post=2666"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jesperjuul.net\/ludologist\/wp-json\/wp\/v2\/tags?post=2666"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}