---
title: "ZX81 Assembler and Disassembler"
id: 11818
type: "product"
slug: "assembler-disassembler"
url: "http://localhost/product/assembler-disassembler/"
markdown_url: "http://localhost/product/assembler-disassembler.md"
published_at: "2019-11-30T01:43:16+00:00"
modified_at: "2026-03-22T13:28:24+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Two-pass assembler that supports symbolic expressions. Initially available separately. Available on EPROM."
category:
  - name: "Programming"
    slug: "programming"
    taxonomy: "category"
    url: "http://localhost/category/software/programming/"
post_tag:
  - name: "Bob Berch (company)"
    slug: "bob-berch"
    taxonomy: "post_tag"
    url: "http://localhost/tag/bob-berch/"
  - name: "Cinagro Software"
    slug: "cinagro-software"
    taxonomy: "post_tag"
    url: "http://localhost/tag/cinagro-software/"
  - name: "Downloadable"
    slug: "downloadable"
    taxonomy: "post_tag"
    url: "http://localhost/tag/downloadable/"
  - name: "G. Russell Electronics"
    slug: "g-russell-electronics"
    taxonomy: "post_tag"
    url: "http://localhost/tag/g-russell-electronics/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
  - name: "TS 1500"
    slug: "ts1500"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1500/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
  - name: "Timex/Sinclair 1500"
    slug: "ts-1500"
    taxonomy: "model"
    url: "http://localhost/model/ts-1500/"
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: "Bob Berch"
company:
  id: 10731
  title: "Cinagro Software"
  type: "company"
  url: "http://localhost/company/cinagro-software/"
price: 19.95
date: 1982
rarity: "Uncommon"
related_content:
  - id: 38397
    title: "Berch Assembler & Disassembler"
    type: "article"
    url: "http://localhost/article/berch-assembler-disassembler/"
  - id: 38402
    title: "The ZX Assembler & Disassembler"
    type: "document"
    url: "http://localhost/document/the-zx-assembler-disassembler/"
adverts:
  - publication:
      - id: 26641
        title: "SYNC v2 n1"
        type: "issue"
        url: "http://localhost/issue/sync-v2-n1/"
    advert_page: "74"
related_products:
  - id: 51826
    title: "ZX81 Assembler and Disassember"
    type: "computer_media"
    url: "http://localhost/computer_media/zx81-assembler-and-disassember/"
companies_products:
  - id: 25271
    title: "Bob Berch"
    type: "company"
    url: "http://localhost/company/bob-berch/"
  - id: 10731
    title: "Cinagro Software"
    type: "company"
    url: "http://localhost/company/cinagro-software/"
  - id: 10889
    title: "G. Russell Electronics"
    type: "company"
    url: "http://localhost/company/g-russell-electronics/"
---

# ZX81 Assembler and Disassembler

Two-pass assembler that supports symbolic expressions.

Initially available separately. Available on EPROM.