---
title: "UPD Modifications"
type: "article"
slug: "upd-modifications-2"
url: "http://localhost/article/upd-modifications-2/"
markdown_url: "http://localhost/article/upd-modifications-2.md"
published_at: "2026-02-15T22:50:17+00:00"
modified_at: "2026-02-15T22:50:18+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "Thanks to Peter McMullin, we now have a \"Print an ASCII character\" routine for the Centronics interface from EPROM Services in England."
category:
  - name: "SyncWare News"
    slug: "syncware-news"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/syncware-news/"
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/"
publication_r:
  id: 10245
  title: "SyncWare News"
  type: "periodical"
  url: "http://localhost/periodical/syncware-news/"
volume: "3"
issue: "1"
issues_articles:
  - id: 38947
    title: "SyncWare News v3 n1"
    type: "issue"
    url: "http://localhost/issue/syncware-news-v3-n1/"
pages: "4"
pubdate: "September/October 1985"
archive_link: false
---

# UPD Modifications

Thanks to [Peter McMullin](http://localhost/indiv/peter-mcmullin/), we now have a “Print an ASCII character” routine for the Centronics interface from EPROM Services in England.