--- title: "The Jungle Jim: ROM Character Generator, Part I" type: "article" slug: "the-jungle-jim-rom-character-generator-part-i" url: "http://localhost/article/the-jungle-jim-rom-character-generator-part-i/" markdown_url: "http://localhost/article/the-jungle-jim-rom-character-generator-part-i.md" published_at: "2026-03-14T00:01:48+00:00" modified_at: "2026-03-14T00:01:49+00:00" featured_image: url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg" excerpt: "First of two parts on the TS1000 ROM character generator table: 512 bytes at addresses 7680–8191 defining 64 characters as 8-byte sets. Explains how to calculate a character's start address (7680 + 8 * CODE A$) and includes a BASIC program that displays any character as a large bit-pattern grid by reading and converting each…" category: - name: "Timelinez" slug: "timelinez" taxonomy: "category" url: "http://localhost/category/periodicals/timelinez/" post_tag: - name: "BASIC (programming language)" slug: "basic-programming-language" taxonomy: "post_tag" url: "http://localhost/tag/basic-programming-language/" - name: "TS 1000" slug: "ts1000" taxonomy: "post_tag" url: "http://localhost/tag/ts1000/" - name: "Type-in program" slug: "type-in-program" taxonomy: "post_tag" url: "http://localhost/tag/type-in-program/" model: - name: "Timex/Sinclair 1000" slug: "ts-1000" taxonomy: "model" url: "http://localhost/model/ts-1000/" indiv: - name: "James C. March" slug: "james-c-march" taxonomy: "indiv" url: "http://localhost/indiv/james-c-march/" publication_r: id: 21571 title: "Timelinez" type: "periodical" url: "http://localhost/periodical/timelinez/" authors_r: - name: "James C. March" slug: "james-c-march" taxonomy: "indiv" url: "http://localhost/indiv/james-c-march/" volume: "2" issue: "10" issues_articles: - id: 38809 title: "Timelinez v2 n10" type: "issue" url: "http://localhost/issue/timelinez-v2-n10/" pages: "2" pubdate: "October 1984" archive_link: false --- # The Jungle Jim: ROM Character Generator, Part I First of two parts on the TS1000 ROM character generator table: 512 bytes at addresses 7680–8191 defining 64 characters as 8-byte sets. Explains how to calculate a character’s start address (7680 + 8 * CODE A$) and includes a BASIC program that displays any character as a large bit-pattern grid by reading and converting each byte from decimal to binary. Demonstrates the character ‘A’ at addresses 7984–7991. Excerpted from The Timex/Sinclair User’s Encyclopedia.