--- title: "Hints & Tips For The ZX81" type: "article" slug: "hints-tips-for-the-zx81" url: "http://localhost/article/hints-tips-for-the-zx81/" markdown_url: "http://localhost/article/hints-tips-for-the-zx81.md" published_at: "2020-10-27T17:18:42+00:00" modified_at: "2024-06-23T00:43:31+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "Hints & Tips for the ZX81 by Andrew Hewson is excellent for the average ZX81 user who has little, or no knowledge of Z80 Machine Code programming, but would like to learn. There are sections on saving space in programs, understanding the Display File, converting ZX80 programs for use on the ZX81, how to let…" 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: "Book review" slug: "book-review" taxonomy: "post_tag" url: "http://localhost/tag/book-review/" - name: "ZX81" slug: "zx81" taxonomy: "post_tag" url: "http://localhost/tag/zx81/" model: - name: "Sinclair ZX81" slug: "zx81" taxonomy: "model" url: "http://localhost/model/zx81/" indiv: - name: "Martin Wren-Hilton" slug: "martin-wren-hilton" taxonomy: "indiv" url: "http://localhost/indiv/martin-wren-hilton/" publication: "Sync" publication_r: id: 10243 title: "SYNC" type: "periodical" url: "http://localhost/periodical/sync-magazine/" authors: "Martin Wren-Hilton" volume: "1" issue: "5" issues_articles: - id: 26639 title: "SYNC v1 n5" type: "issue" url: "http://localhost/issue/sync-v1-n5/" pages: "44" pubdate: "September/October 1981" archive_link: false volumeissue: "v1n5" --- Hints & Tips for the ZX81 by Andrew Hewson is excellent for the average ZX81 user who has little, or no knowledge of Z80 Machine Code programming, but would like to learn. There are sections on saving space in programs, understanding the Display File, converting ZX80 programs for use on the ZX81, how to let two or more programs access one lot of data and finally, 26 pages on machine code programming.