---
title: "Faster Cassette Saving for the ZX"
type: "article"
slug: "faster-cassette-saving-for-the-zx"
url: "http://localhost/article/faster-cassette-saving-for-the-zx/"
markdown_url: "http://localhost/article/faster-cassette-saving-for-the-zx.md"
published_at: "2026-03-15T01:07:13+00:00"
modified_at: "2026-03-15T01:07:14+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Technical article presenting Z80 machine code routines that double the ZX81/TS1000's tape save/load speed from 300 to approximately 600 baud. Includes BASIC poke-loader listings for embedding the routines in a REM statement, plus instructions for relocating the code above RAMTOP and saving arbitrary memory blocks rather than entire programs."
category:
  - name: "Timex Sinclair User Group Newsletter: Ottawa Chapter"
    slug: "timex-sinclair-user-group-newsletter-ottawa-chapter"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/timex-sinclair-user-group-newsletter-ottawa-chapter/"
post_tag:
  - name: "Machine language programming"
    slug: "machine-language"
    taxonomy: "post_tag"
    url: "http://localhost/tag/machine-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: "Bill Turnbull"
    slug: "bill-turnbull"
    taxonomy: "indiv"
    url: "http://localhost/indiv/bill-turnbull/"
publication_r:
  id: 36591
  title: "Timex Sinclair User Group Newsletter: Ottawa Chapter"
  type: "periodical"
  url: "http://localhost/periodical/timex-sinclair-user-group-newsletter-ottawa-chapter/"
authors_r:
  - name: "Bill Turnbull"
    slug: "bill-turnbull"
    taxonomy: "indiv"
    url: "http://localhost/indiv/bill-turnbull/"
volume: "3"
issue: "2"
issues_articles:
  - id: 36603
    title: "Timex Sinclair User Group Newsletter: Ottawa Chapter v3 n2"
    type: "issue"
    url: "http://localhost/issue/timex-sinclair-user-group-newsletter-ottawa-chapter-v3-n2/"
pages: "10"
pubdate: "February 1986"
archive_link: false
---

Technical article presenting Z80 machine code routines that double the ZX81/TS1000’s tape save/load speed from 300 to approximately 600 baud. Includes BASIC poke-loader listings for embedding the routines in a REM statement, plus instructions for relocating the code above RAMTOP and saving arbitrary memory blocks rather than entire programs.