{"id":19378886,"url":"https://github.com/eliasjuk/systemos","last_synced_at":"2026-05-04T19:39:01.922Z","repository":{"id":125446947,"uuid":"254985457","full_name":"EliasJuk/SystemOS","owner":"EliasJuk","description":"Sistema Operacional","archived":false,"fork":false,"pushed_at":"2020-04-15T20:24:15.000Z","size":45,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":1,"default_branch":"master","last_synced_at":"2025-01-07T05:41:15.232Z","etag":null,"topics":["assembly","c"],"latest_commit_sha":null,"homepage":"","language":"Assembly","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"mit","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/EliasJuk.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null,"roadmap":null,"authors":null,"dei":null,"publiccode":null,"codemeta":null}},"created_at":"2020-04-12T01:14:22.000Z","updated_at":"2020-04-15T20:17:27.000Z","dependencies_parsed_at":null,"dependency_job_id":"c959152b-604d-49ec-a4a0-ec1adc249783","html_url":"https://github.com/EliasJuk/SystemOS","commit_stats":null,"previous_names":[],"tags_count":0,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/EliasJuk%2FSystemOS","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/EliasJuk%2FSystemOS/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/EliasJuk%2FSystemOS/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/EliasJuk%2FSystemOS/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/EliasJuk","download_url":"https://codeload.github.com/EliasJuk/SystemOS/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":240511616,"owners_count":19813299,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["assembly","c"],"created_at":"2024-11-10T09:07:43.009Z","updated_at":"2026-05-04T19:38:56.888Z","avatar_url":"https://github.com/EliasJuk.png","language":"Assembly","funding_links":[],"categories":[],"sub_categories":[],"readme":"# ❔ How to Build an Operating System\n\n## ✨ What you need to get started\n\n- 📝 Text editor\n- 💻 Virtual machine\n- 💿 [Rufus](https://rufus.ie/downloads/) - Recommended rufus-2.18\n- 🔧 Binary compiler - [Nasm](https://www.nasm.us/)\n- 💾 Data image file - [Fergoraw](https://www.fergonez.net/softwares/fraw)\n- 📀 Tools for mounting ISO images\n\n---\n\n## BOOT START\n\n\u003cp align=\"center\"\u003e\n  \u003cimg alt=\"Boot\" title=\"Boot\" src=\"readme/boot.gif\" width=\"700px\" /\u003e\n\u003c/p\u003e\n\n---\n\n## 💾 Basic Boot\n\n```bash\n[ORG 0x7C00]\n\nLOOP:\n  jmp LOOP\n\ntimes 510-($-$$) db 0\ndb 0x55\ndb 0xAA\n```\n\n# ❔ How to Build\n\n\u003eTo build, you will need the nasm program, go to the directory where the boot file is located and give the following command:\n\n```bash\n\n$ nasm boot.asm -f bin -o boot.bin\n\n```\n\n---\n\n\n## 🔖 Define directives\n\n\u003e   Allocating Storage Space for Initialized Data\n\n\n|     Directive       |    Purpose    |      Storage Space      |\n|---------------------|---------------|-------------------------|\n|         DB          | Define Byte   | Allocates 1 byte        |   \n|         DW          | Define Word   | Allocates 2 bytes       |\n\n\n---\n\n\n## 🌎 Hello World!\n\n\u003cp align=\"center\"\u003e\n  \u003cimg alt=\"HelloWorld\" title=\"HelloWorld\" src=\"readme/helloworld.gif\" /\u003e\n\u003c/p\u003e\n\n\u003cp\u003eTabela ansi com os caracteres em Decimal e Hexadecial passados para escrever um Hello World! na tela\u003c/p\u003e\n\n\n|    Decimal    |  Hexadecimal  |   Caractere   |  |    Decimal    |  Hexadecimal  |   Caractere   |\n|---------------|---------------|---------------|--|---------------|---------------|---------------|\n|      72       |      48       |       H       |  |      87       |      57       |       W       |\n|      101      |      65       |       e       |  |      111      |      6F       |       o       |\n|      108      |      6C       |       l       |  |      114      |      72       |       r       |\n|      108      |      6C       |       l       |  |      108      |      6C       |       l       |\n|      111      |      6F       |       o       |  |      100      |      64       |       d       |\n|      32       |      20       |               |  |      33       |      21       |       !       |\n\n\n---\n\n## 🌎 Welcome!\n\n\u003cp align=\"center\"\u003e\n  \u003cimg alt=\"Welcome\" title=\"Welcome\" src=\"readme/welcome.gif\" /\u003e\n\u003c/p\u003e\n\n\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Feliasjuk%2Fsystemos","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Feliasjuk%2Fsystemos","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Feliasjuk%2Fsystemos/lists"}