---
title: "Zeus Assembler"
id: 14685
type: "product"
slug: "zeus-assembler"
url: "http://localhost/product/zeus-assembler/"
markdown_url: "http://localhost/product/zeus-assembler.md"
published_at: "2019-11-30T01:24:08+00:00"
modified_at: "2026-03-22T13:37:13+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2020/09/ZeusAssembler.jpg"
excerpt: "Use the full Z80 mnemonics instruction set. Editor allows cursor movement in 4 directions, insert, delete, clear line and screen. Display current registers and alter them. Save machine code by entering one letter commands; substitute lines of code. Move blocks around in memory. Mini monitor accesses memory. Automatic line numbering and renumbering. Adapted from the…"
category:
  - name: "Programming"
    slug: "programming"
    taxonomy: "category"
    url: "http://localhost/category/software/programming/"
post_tag:
  - name: "Basically Programming"
    slug: "basically-programming"
    taxonomy: "post_tag"
    url: "http://localhost/tag/basically-programming/"
  - name: "Downloadable"
    slug: "downloadable"
    taxonomy: "post_tag"
    url: "http://localhost/tag/downloadable/"
  - name: "Knighted Computers"
    slug: "knighted-computers"
    taxonomy: "post_tag"
    url: "http://localhost/tag/knighted-computers/"
  - name: "Softsync"
    slug: "softsync"
    taxonomy: "post_tag"
    url: "http://localhost/tag/softsync/"
  - name: "TS 2068"
    slug: "ts2068"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts2068/"
  - name: "Variety Sales"
    slug: "variety-sales"
    taxonomy: "post_tag"
    url: "http://localhost/tag/variety-sales/"
model:
  - name: "Timex/Sinclair 2068"
    slug: "ts-2068"
    taxonomy: "model"
    url: "http://localhost/model/ts-2068/"
genre:
  - name: "Programming"
    slug: "programming"
    taxonomy: "genre"
    url: "http://localhost/type/programming/"
  - name: "Software"
    slug: "software"
    taxonomy: "genre"
    url: "http://localhost/type/software/"
author_2: "Neil Mottershead and Simon Brattel"
company:
  id: 55916
  title: "Crystal Computing"
  type: "company"
  url: "http://localhost/company/crystal-computing/"
price: 19.99
date: 1983
rarity: "Uncommon"
producturl: "https://spectrumcomputing.co.uk/entry/4000098/Timex/Zeus_Assembler"
related_content:
  - id: 24161
    title: "Resources (Sync v4 n2)"
    type: "article"
    url: "http://localhost/article/resources-sync-v4-n2/"
  - id: 36574
    title: "ZEUS Z80 Assembler manual"
    type: "document"
    url: "http://localhost/document/zeus-z80-assembler/"
  - id: 38773
    title: "ZEUS Z80 Assembler"
    type: "document"
    url: "http://localhost/document/zeus-z80-assembler-2/"
  - id: 38774
    title: "ZX Spectrum Monitor and Disassembler"
    type: "document"
    url: "http://localhost/document/zx-spectrum-monitor-and-disassembler/"
product_reviews:
  - id: 39153
    title: "HOT Z/Zeus Comparison"
    type: "article"
    url: "http://localhost/article/hot-z-zeus-comparison/"
  - id: 61280
    title: "2068 SOFTWARE REVIEW"
    type: "article"
    url: "http://localhost/article/2068-software-review/"
adverts:
  - publication:
      - id: 26630
        title: "SUM v3 n10"
        type: "issue"
        url: "http://localhost/issue/sum-v3-n10/"
    advert_page: "9"
  - publication:
      - id: 26684
        title: "SyncWare News v2 n5"
        type: "issue"
        url: "http://localhost/issue/syncware-news-v2-n5/"
    advert_page: "13"
related_products:
  - id: 51830
    title: "Zeus Disassembler"
    type: "computer_media"
    url: "http://localhost/computer_media/zeus-disassembler/"
companies_products:
  - id: 10674
    title: "Basically Programming"
    type: "company"
    url: "http://localhost/company/basically-programming/"
  - id: 11319
    title: "Softsync, Inc."
    type: "company"
    url: "http://localhost/company/softsync/"
  - id: 11428
    title: "Variety Sales"
    type: "company"
    url: "http://localhost/company/variety-sales/"
  - id: 11024
    title: "Knighted Computers"
    type: "company"
    url: "http://localhost/company/knighted-computers/"
  - id: 55916
    title: "Crystal Computing"
    type: "company"
    url: "http://localhost/company/crystal-computing/"
---

Use the full Z80 mnemonics instruction set. Editor allows cursor movement in 4 directions, insert, delete, clear line and screen. Display current registers and alter them. Save machine code by entering one letter commands; substitute lines of code. Move blocks around in memory. Mini monitor accesses memory. Automatic line numbering and renumbering. Adapted from the original by [Crystal Computing for the ZX Spectrum](https://spectrumcomputing.co.uk/entry/9010/ZX-Spectrum/Zeus).