--- title: "Learning Z80 Assembly Language Programming, Part 3" type: "article" slug: "learning-z80-assembly-language-programming-part-3-2" url: "http://localhost/article/learning-z80-assembly-language-programming-part-3-2/" markdown_url: "http://localhost/article/learning-z80-assembly-language-programming-part-3-2.md" published_at: "2026-03-13T21:02:23+00:00" modified_at: "2026-03-13T21:02:24+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "Third installment of a series teaching Z80 assembly on the TS1000, covering loop construction (DJNZ), table access with HL pointer register, and timing loops. Hex codes are provided for all example routines." category: - name: "Timelinez" slug: "timelinez" taxonomy: "category" url: "http://localhost/category/periodicals/timelinez/" post_tag: - name: "Machine language programming" slug: "machine-language" taxonomy: "post_tag" url: "http://localhost/tag/machine-language/" - name: "TS 1000" slug: "ts1000" taxonomy: "post_tag" url: "http://localhost/tag/ts1000/" model: - name: "Timex/Sinclair 1000" slug: "ts-1000" taxonomy: "model" url: "http://localhost/model/ts-1000/" genre: - name: "Machine Language" slug: "machine-language" taxonomy: "genre" url: "http://localhost/type/machine-language/" publication_r: id: 21571 title: "Timelinez" type: "periodical" url: "http://localhost/periodical/timelinez/" volume: "1" issue: "5" issues_articles: - id: 38795 title: "Timelinez v1 n5" type: "issue" url: "http://localhost/issue/timelinez-v1-n3-2/" pages: "6" pubdate: "November 1983" archive_link: false --- # Learning Z80 Assembly Language Programming, Part 3 Third installment of a series teaching Z80 assembly on the TS1000, covering loop construction (DJNZ), table access with HL pointer register, and timing loops. Hex codes are provided for all example routines.