--- title: Writing My Own Boot-loader With a Very Primitive Calculator description: In this blog post, I will be “attempting” to write my very own boot-loader with a very simple and primitive calculator. The first thing we need to do is have a... canonical: https://daily.dev/posts/writing-my-own-boot-loader-with-a-very-primitive-calculator-yqwwou7gx twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Writing My Own Boot-loader With a Very Primitive Calculator | daily.dev og:description: In this blog post, I will be “attempting” to write my very own boot-loader with a very simple and primitive calculator. The first thing we need to do is have a... og:url: https://daily.dev/posts/writing-my-own-boot-loader-with-a-very-primitive-calculator-yqwwou7gx og:image: https://api.daily.dev/og/posts/yQwwOU7Gx.png og:image:alt: Writing My Own Boot-loader With a Very Primitive Calculator og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Writing My Own Boot-loader With a Very Primitive Calculator **[Hacker Noon](https://daily.dev/sources/hackernoon)** · 7 min read · 1 upvotes · 0 comments ## Summary In this blog post, I will be “attempting” to write my very own boot-loader with a very simple and primitive calculator. The first thing we need to do is have a file that we can run, and it will set the rest up. We need a way to print a character to the screen, set the video mode, clear the screen and last but not least, create a new line. We can do all of this in less than 40 lines of code! ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#bootloader](https://daily.dev/tags/bootloader) [View this post on daily.dev](https://daily.dev/posts/writing-my-own-boot-loader-with-a-very-primitive-calculator-yqwwou7gx) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Writing My Own Boot-loader With a Very Primitive Calculator","url":"https://daily.dev/posts/writing-my-own-boot-loader-with-a-very-primitive-calculator-yqwwou7gx","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/writing-my-own-boot-loader-with-a-very-primitive-calculator-yqwwou7gx"},"datePublished":"2022-07-04T20:54:45.861Z","dateModified":"2026-06-25T02:15:32.018Z","description":"In this blog post, I will be “attempting” to write my very own boot-loader with a very simple and primitive calculator. The first thing we need to do is have a...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4d9848a048f6e04fcfbcfb0d861e9d7a","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/4d9848a048f6e04fcfbcfb0d861e9d7a","isAccessibleForFree":true,"articleSection":"Hacker Noon","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Hacker Noon","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/hackernoon","url":"https://daily.dev/sources/hackernoon"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/writing-my-own-boot-loader-with-a-very-primitive-calculator-yqwwou7gx","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"bootloader","timeRequired":"PT7M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Hacker Noon","item":"https://daily.dev/sources/hackernoon"},{"@type":"ListItem","position":3,"name":"Writing My Own Boot-loader With a Very Primitive Calculator"}]} ```