---
title: "4K ROM: Display Routine"
type: "article"
slug: "4k-rom-display-routine"
url: "http://localhost/article/4k-rom-display-routine/"
markdown_url: "http://localhost/article/4k-rom-display-routine.md"
published_at: "2020-10-27T17:12:05+00:00"
modified_at: "2024-06-23T00:45:05+00:00"
featured_image:
  url: "http://localhost/wp-content/uploads/2022/04/20230809-041332.jpg"
excerpt: "DISPLAY begins the 4K ROM's input/output module at 013Ch, or 316d."
category:
  - name: "Syntax"
    slug: "syntax"
    taxonomy: "category"
    url: "http://localhost/category/periodicals/syntax/"
post_tag:
  - name: "1981"
    slug: "year-1981"
    taxonomy: "post_tag"
    url: "http://localhost/tag/year-1981/"
  - name: "Reference"
    slug: "reference"
    taxonomy: "post_tag"
    url: "http://localhost/tag/reference/"
  - name: "ZX80"
    slug: "zx80"
    taxonomy: "post_tag"
    url: "http://localhost/tag/zx80/"
model:
  - name: "Sinclair ZX80"
    slug: "zx80"
    taxonomy: "model"
    url: "http://localhost/model/zx80/"
publication: "Syntax"
publication_r:
  id: 10246
  title: "Syntax"
  type: "periodical"
  url: "http://localhost/periodical/syntax/"
volume: "2"
issue: "8"
issues_articles:
  - id: 26700
    title: "Syntax/Syntax ZX80 v2 n8"
    type: "issue"
    url: "http://localhost/issue/syntax-syntax-zx80-v2-n8/"
pages: "6-7"
pubdate: "August 1981"
archive_link: false
volumeissue: "v2n8"
---

# 4K ROM: Display Routine

DISPLAY begins the 4K ROM’s input/output module at 013Ch, or 316d.