--- title: "How to Produce a Display File Using Machine Code" type: "article" slug: "how-to-produce-a-display-file-using-machine-code" url: "http://localhost/article/how-to-produce-a-display-file-using-machine-code/" markdown_url: "http://localhost/article/how-to-produce-a-display-file-using-machine-code.md" published_at: "2020-10-27T21:18:32+00:00" modified_at: "2024-06-23T00:44:01+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "In the ZX80 the display file is the part of the RAM which holds the next picture to be shown. A complete picture is made up of 24 lines which can be from to 32 characters in length. The display file has an initial delimiting \"118\". and another delimiting \"118\" to mark the end of…" category: - name: "SYNC" slug: "sync" taxonomy: "category" url: "http://localhost/category/periodicals/sync/" post_tag: - name: "1981" slug: "year-1981" taxonomy: "post_tag" url: "http://localhost/tag/year-1981/" - name: "Machine language programming" slug: "machine-language" taxonomy: "post_tag" url: "http://localhost/tag/machine-language/" - name: "Type-in program" slug: "type-in-program" taxonomy: "post_tag" url: "http://localhost/tag/type-in-program/" - name: "ZX80" slug: "zx80" taxonomy: "post_tag" url: "http://localhost/tag/zx80/" model: - name: "Sinclair ZX80" slug: "zx80" taxonomy: "model" url: "http://localhost/model/zx80/" indiv: - name: "Ian Logan" slug: "ian-logan" taxonomy: "indiv" url: "http://localhost/indiv/ian-logan/" publication: "Sync" publication_r: id: 10243 title: "SYNC" type: "periodical" url: "http://localhost/periodical/sync-magazine/" authors: "Ian Logan" volume: "1" issue: "2" issues_articles: - id: 26636 title: "SYNC v1 n2" type: "issue" url: "http://localhost/issue/sync-v1-n2/" pages: "13-15" pubdate: "March/April 1981" archive_link: false volumeissue: "v1n2" --- # How to Produce a Display File Using Machine Code In the ZX80 the display file is the part of the RAM which holds the next picture to be shown. A complete picture is made up of 24 lines which can be from to 32 characters in length. The display file has an initial delimiting “118”. and another delimiting “118” to mark the end of each line.