---
title: "Quick Mode for ZX81, TS1000, TS1500"
id: 54772
type: "document"
slug: "quick-mode-for-zx81-ts1000-ts1500"
url: "http://localhost/document/quick-mode-for-zx81-ts1000-ts1500/"
markdown_url: "http://localhost/document/quick-mode-for-zx81-ts1000-ts1500.md"
published_at: "2024-06-04T10:14:38+00:00"
modified_at: "2024-06-04T14:28:12+00:00"
author: "David Anderson"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "We're all used to the FAST vs. SLOW dilemma. In FAST mode, the machine cruises right along, but you can’t see the display. In SLOW mode you have a continuous display, but the overall speed often leaves much to be desired. Well, how about a FULL-SIZE, continuous display, while running almost three times as fast…"
category:
  - name: "Documentation"
    slug: "documentation"
    taxonomy: "category"
    url: "http://localhost/category/documentation/"
post_tag:
  - 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: "Fred Nachbaur"
    slug: "fred-nachbaur"
    taxonomy: "indiv"
    url: "http://localhost/indiv/fred-nachbaur/"
collection:
  - name: "Paul Holmgren"
    slug: "paul-holmgren"
    taxonomy: "indiv"
    url: "http://localhost/indiv/paul-holmgren/"
doc_author: "Fred Nachbaur"
document_url: "https://archive.org/details/syncware-news-docs/Quick%20Mode%20for%20ZX81%2C%20TS1000%2C%20TS1500"
pages: 9
document_date: "198x"
---

# Quick Mode for ZX81, TS1000, TS1500

We’re all used to the FAST vs. SLOW dilemma. In FAST mode, the machine cruises right along, but you can’t see the display. In SLOW mode you have a continuous display, but the overall speed often leaves much to be desired. Well, how about a FULL-SIZE, continuous display, while running almost three times as fast as the normal SLOW mode? You got it! The QUICK-mode routine in this article works with most BASIC or machine-code programs. The exceptions are other programs that already modify the interrupts for custom displays.