---
title: "Understanding Your ZX81 ROM"
id: 20984
type: "book"
slug: "understanding-your-zx81-rom"
url: "http://localhost/book/understanding-your-zx81-rom/"
markdown_url: "http://localhost/book/understanding-your-zx81-rom.md"
published_at: "2020-04-05T16:22:31+00:00"
modified_at: "2024-05-26T15:07:27+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2020/08/Understanding-Your-ZX81-ROM.jpg"
excerpt: "Illustrates all the facilities of the ZX81/TS1000 monitor, how it works, and how you can use it in your own programs. A section on machine language use and subroutines will add to your programming power. For advanced beginners to experienced."
category:
  - name: "Books"
    slug: "book"
    taxonomy: "category"
    url: "http://localhost/category/book/"
post_tag:
  - name: "Gladstone Electronics"
    slug: "gladstone-electronics"
    taxonomy: "post_tag"
    url: "http://localhost/tag/gladstone-electronics/"
  - name: "Melbourne House Publishers"
    slug: "melbourne-house-publishers"
    taxonomy: "post_tag"
    url: "http://localhost/tag/melbourne-house-publishers/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - 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/"
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
indiv:
  - name: "Ian Logan"
    slug: "ian-logan"
    taxonomy: "indiv"
    url: "http://localhost/indiv/ian-logan/"
authors: "Ian Logan"
publisher: "Melbourne House"
date: "1981"
archiveurl: "https://archive.org/details/understanding-your-zx81-rom"
zotero_id: "MTEW3Q7T"
---

# Understanding Your ZX81 ROM

Illustrates all the facilities of the ZX81/TS1000 monitor, how it works, and how you can use it in your own programs. A section on machine language use and subroutines will add to your programming power. For advanced beginners to experienced.