--- title: "Accessing LKDOS from Machine Code" type: "article" slug: "accessing-lkdos-from-machine-code" url: "http://localhost/article/accessing-lkdos-from-machine-code/" markdown_url: "http://localhost/article/accessing-lkdos-from-machine-code.md" published_at: "2020-10-27T21:13:33+00:00" modified_at: "2024-05-26T13:18:45+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "The DOS is easy to access from machine code using the internal jump table starting at address 120 in the cartridge. The jump table is a list of 20 or so entry points to the most often used sub-routines in the dos." category: - name: "Update Magazine" slug: "update-magazine" taxonomy: "category" url: "http://localhost/category/periodicals/update-magazine/" post_tag: - name: "LARKEN Electronics" slug: "larken-electronics" taxonomy: "post_tag" url: "http://localhost/tag/larken-electronics/" - name: "Machine language programming" slug: "machine-language" taxonomy: "post_tag" url: "http://localhost/tag/machine-language/" - name: "TS 2068" slug: "ts2068" taxonomy: "post_tag" url: "http://localhost/tag/ts2068/" model: - name: "Timex/Sinclair 2068" slug: "ts-2068" taxonomy: "model" url: "http://localhost/model/ts-2068/" indiv: - name: "Larry Kenny" slug: "larry-kenny" taxonomy: "indiv" url: "http://localhost/indiv/larry-kenny/" publication: "TS-2068 Up-date" publication_r: id: 10283 title: "Update Magazine" type: "periodical" url: "http://localhost/periodical/update-magazine/" authors: "Larry Kenny" issues_articles: - id: 26483 title: "Update April 1988" type: "issue" url: "http://localhost/issue/ts-2068-up-date-april-1988-2/" pages: "34" pubdate: "April 1988" archive_link: false volumeissue: "v1n3" companies_articles: - id: 11042 title: "LARKEN Electronics" type: "company" url: "http://localhost/company/larken-electronics/" --- # Accessing LKDOS from Machine Code The DOS is easy to access from machine code using the internal jump table starting at address 120 in the cartridge. The jump table is a list of 20 or so entry points to the most often used sub-routines in the dos.