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proj
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MinixTimeKeeper

📖 Description

A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP. The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:

  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer

This project was built to run on a special variant of MinixOS used at FEUP.

⚙️ Features

  • Custom device drivers:

    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)

  • Clock modes:

    • Real-time clock
    • Timer
    • Chronometer

  • User interface rendered with XPM sprites

🚀 How to Build & Run

⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.

  1. Clone the repository and navigate to the proj/src folder:

    git clone <repo-url>cd proj/src

  2. Build the project using make:

    make

  3. Run the application inside the MinixOS environment using:

    lcom_run proj

  4. To stop the application, press the Q key.

📘 Documentation

This project includes full technical documentation generated with Doxygen.

If you want to regenerate the documentation:

cd proj/doc/Doxygen
doxygen Doxyfile

The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:

cd proj/doc/latex
make

The result will be refman.pdf.

👥 Group Members

  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)

📎 License

This project is distributed under the terms of the MIT License.

About

A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.

sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883

Topics

cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver

Resources

Readme
MIT license
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, 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
 blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

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MinixTimeKeeper
📖 Description
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:
  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer
This project was built to run on a special variant of MinixOS used at FEUP.
⚙️ Features
  • Custom device drivers:
    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)
  • Clock modes:
    • Real-time clock
    • Timer
    • Chronometer
  • User interface rendered with XPM sprites
🚀 How to Build & Run
⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.
  1. Clone the repository and navigate to the proj/src folder:
    git clone <repo-url>cd proj/src
  2. Build the project using make:
    make
  3. Run the application inside the MinixOS environment using:
    lcom_run proj
  4. To stop the application, press the Q key.
📘 Documentation
This project includes full technical documentation generated with Doxygen.
If you want to regenerate the documentation:
cd proj/doc/Doxygen
doxygen Doxyfile
The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:
cd proj/doc/latex
make
The result will be refman.pdf.
👥 Group Members
  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)
📎 License
This project is distributed under the terms of the MIT License.
About
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883
Topics
cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver
Resources
Readme
MIT license
Activity
Stars
0 stars
Watchers
1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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proj
proj
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md
Repository files navigation
MinixTimeKeeper
📖 Description
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:
  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer
This project was built to run on a special variant of MinixOS used at FEUP.
⚙️ Features
  • Custom device drivers:
    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)
  • Clock modes:
    • Real-time clock
    • Timer
    • Chronometer
  • User interface rendered with XPM sprites
🚀 How to Build & Run
⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.
  1. Clone the repository and navigate to the proj/src folder:
    git clone <repo-url>cd proj/src
  2. Build the project using make:
    make
  3. Run the application inside the MinixOS environment using:
    lcom_run proj
  4. To stop the application, press the Q key.
📘 Documentation
This project includes full technical documentation generated with Doxygen.
If you want to regenerate the documentation:
cd proj/doc/Doxygen
doxygen Doxyfile
The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:
cd proj/doc/latex
make
The result will be refman.pdf.
👥 Group Members
  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)
📎 License
This project is distributed under the terms of the MIT License.
About
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883
Topics
cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver
Resources
Readme
MIT license
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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MinixTimeKeeper
📖 Description
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:
  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer
This project was built to run on a special variant of MinixOS used at FEUP.
⚙️ Features
  • Custom device drivers:
    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)
  • Clock modes:
    • Real-time clock
    • Timer
    • Chronometer
  • User interface rendered with XPM sprites
🚀 How to Build & Run
⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.
  1. Clone the repository and navigate to the proj/src folder:
    git clone <repo-url>cd proj/src
  2. Build the project using make:
    make
  3. Run the application inside the MinixOS environment using:
    lcom_run proj
  4. To stop the application, press the Q key.
📘 Documentation
This project includes full technical documentation generated with Doxygen.
If you want to regenerate the documentation:
cd proj/doc/Doxygen
doxygen Doxyfile
The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:
cd proj/doc/latex
make
The result will be refman.pdf.
👥 Group Members
  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)
📎 License
This project is distributed under the terms of the MIT License.
About
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883
Topics
cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver
Resources
Readme
MIT license
Activity
Stars
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

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MinixTimeKeeper
📖 Description
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:
  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer
This project was built to run on a special variant of MinixOS used at FEUP.
⚙️ Features
  • Custom device drivers:
    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)
  • Clock modes:
    • Real-time clock
    • Timer
    • Chronometer
  • User interface rendered with XPM sprites
🚀 How to Build & Run
⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.
  1. Clone the repository and navigate to the proj/src folder:
    git clone <repo-url>cd proj/src
  2. Build the project using make:
    make
  3. Run the application inside the MinixOS environment using:
    lcom_run proj
  4. To stop the application, press the Q key.
📘 Documentation
This project includes full technical documentation generated with Doxygen.
If you want to regenerate the documentation:
cd proj/doc/Doxygen
doxygen Doxyfile
The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:
cd proj/doc/latex
make
The result will be refman.pdf.
👥 Group Members
  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)
📎 License
This project is distributed under the terms of the MIT License.
About
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883
Topics
cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver
Resources
Readme
MIT license
Activity
Stars
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Watchers
1 watching
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0 forks
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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144 Commits
Folders and files
NameName
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.minix-src/include
.minix-src/include
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lab3
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lab4
lab5
lab5
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lab6
proj
proj
.gitignore
.gitignore
LICENSE
LICENSE
README.md
README.md
Repository files navigation
MinixTimeKeeper
📖 Description
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:
  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer
This project was built to run on a special variant of MinixOS used at FEUP.
⚙️ Features
  • Custom device drivers:
    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)
  • Clock modes:
    • Real-time clock
    • Timer
    • Chronometer
  • User interface rendered with XPM sprites
🚀 How to Build & Run
⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.
  1. Clone the repository and navigate to the proj/src folder:
    git clone <repo-url>cd proj/src
  2. Build the project using make:
    make
  3. Run the application inside the MinixOS environment using:
    lcom_run proj
  4. To stop the application, press the Q key.
📘 Documentation
This project includes full technical documentation generated with Doxygen.
If you want to regenerate the documentation:
cd proj/doc/Doxygen
doxygen Doxyfile
The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:
cd proj/doc/latex
make
The result will be refman.pdf.
👥 Group Members
  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)
📎 License
This project is distributed under the terms of the MIT License.
About
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883
Topics
cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver
Resources
Readme
MIT license
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Contributors
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

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MinixTimeKeeper
📖 Description
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:
  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer
This project was built to run on a special variant of MinixOS used at FEUP.
⚙️ Features
  • Custom device drivers:
    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)
  • Clock modes:
    • Real-time clock
    • Timer
    • Chronometer
  • User interface rendered with XPM sprites
🚀 How to Build & Run
⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.
  1. Clone the repository and navigate to the proj/src folder:
    git clone <repo-url>cd proj/src
  2. Build the project using make:
    make
  3. Run the application inside the MinixOS environment using:
    lcom_run proj
  4. To stop the application, press the Q key.
📘 Documentation
This project includes full technical documentation generated with Doxygen.
If you want to regenerate the documentation:
cd proj/doc/Doxygen
doxygen Doxyfile
The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:
cd proj/doc/latex
make
The result will be refman.pdf.
👥 Group Members
  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)
📎 License
This project is distributed under the terms of the MIT License.
About
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883
Topics
cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver
Resources
Readme
MIT license
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, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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Repository files navigation
MinixTimeKeeper
📖 Description
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
The project integrates drivers for the timer, keyboard, mouse, RTC, and graphics into a working system that can:
  • Display the current time
  • Run a countdown timer
  • Operate as a chronometer
This project was built to run on a special variant of MinixOS used at FEUP.
⚙️ Features
  • Custom device drivers:
    • Timer
    • Keyboard
    • Mouse
    • RTC (Real-Time Clock)
    • Graphics (VBE)
  • Clock modes:
    • Real-time clock
    • Timer
    • Chronometer
  • User interface rendered with XPM sprites
🚀 How to Build & Run
⚠️ This project is designed for the MinixOS variant provided at FEUP. Running it outside that environment may not be possible without adjustments.
  1. Clone the repository and navigate to the proj/src folder:
    git clone <repo-url>cd proj/src
  2. Build the project using make:
    make
  3. Run the application inside the MinixOS environment using:
    lcom_run proj
  4. To stop the application, press the Q key.
📘 Documentation
This project includes full technical documentation generated with Doxygen.
If you want to regenerate the documentation:
cd proj/doc/Doxygen
doxygen Doxyfile
The HTML output will be generated in proj/doc/html/ and LaTeX sources in proj/doc/latex/. You can then compile the LaTeX to PDF with:
cd proj/doc/latex
make
The result will be refman.pdf.
👥 Group Members
  1. Afonso Neves (up202108884@up.pt)
  2. Tiago Oliveira (up202009302@up.pt)
  3. Tiago Martins (up202206640@up.pt)
  4. Tomás Ferreira (up202305823@up.pt)
📎 License
This project is distributed under the terms of the MIT License.
About
A MinixOS-based C application combining custom device drivers with a basic clock program, developed for the Computer Laboratory course at FEUP.
sigarra.up.pt/feup/en/UCURR_GERAL.FICHA_UC_VIEW?pv_ocorrencia_id=541883
Topics
cdevice-driversdoxygenembedded-systemsgraphics-programmingkeyboard-driverlow-level-programmingminixmouse-driverreal-time-clocksystems-programmingtimer-driver
Resources
Readme
MIT license
Activity
Stars
0 stars
Watchers
1 watching
Forks
0 forks
Report repository
Contributors
Languages