---
title: "ZX81 CESIL Compiler"
id: 14790
type: "product"
slug: "zx81-cesil-compiler"
url: "http://localhost/product/zx81-cesil-compiler/"
markdown_url: "http://localhost/product/zx81-cesil-compiler.md"
published_at: "2019-11-30T01:28:43+00:00"
modified_at: "2026-03-22T13:35:39+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Run CESIL on your ZX81. Up to 40 CESIL lines per program. Facility for modify, list, printout listing, etc. Menu driven. 16K."
category:
  - name: "Programming"
    slug: "programming"
    taxonomy: "category"
    url: "http://localhost/category/software/programming/"
post_tag:
  - name: "P. Nethercot & R. Rackstraw"
    slug: "p-nethercot-r-rackstraw"
    taxonomy: "post_tag"
    url: "http://localhost/tag/p-nethercot-r-rackstraw/"
  - name: "TS 1000"
    slug: "ts1000"
    taxonomy: "post_tag"
    url: "http://localhost/tag/ts1000/"
model:
  - name: "Timex/Sinclair 1000"
    slug: "ts-1000"
    taxonomy: "model"
    url: "http://localhost/model/ts-1000/"
genre:
  - name: "Programming"
    slug: "programming"
    taxonomy: "genre"
    url: "http://localhost/type/programming/"
  - name: "Software"
    slug: "software"
    taxonomy: "genre"
    url: "http://localhost/type/software/"
company:
  id: 11160
  title: "P. Nethercot & R. Rackstraw"
  type: "company"
  url: "http://localhost/company/p-nethercot-r-rackstraw/"
date: 1983
rarity: "Uncommon"
producturl: "http://www.obelisk.me.uk/cesil/"
articles:
  - article:
      id: 24414
      title: "Programming Your Computer"
      type: "article"
      url: "http://localhost/article/programming-your-computer/"
companies_products:
  - id: 11160
    title: "P. Nethercot & R. Rackstraw"
    type: "company"
    url: "http://localhost/company/p-nethercot-r-rackstraw/"
---

# ZX81 CESIL Compiler

Run [CESIL](https://en.wikipedia.org/wiki/CESIL) on your ZX81. Up to 40 CESIL lines per program. Facility for modify, list, printout listing, etc. Menu driven. 16K.