MOP3 real hardware, theme update

assets/css/asciidoctor.css

@@ -164,7 +164,7 @@ table thead tr th, table tfoot tr th, table tbody tr td, table tr td, table tfoo
 .clearfix:before, .clearfix:after, .float-group:before, .float-group:after { content: " "; display: table; }
 .clearfix:after, .float-group:after { clear: both; }
 
-*:not(pre) > code { font-size: 0.9375em; padding: 1px 3px 0; white-space: nowrap; background-color: #060606; text-shadow: none; }
+*:not(pre) > code { font-size: 0.9375em; padding: 1px 3px 0; white-space: nowrap; background-color: #f8f9fa; text-shadow: none; }
 
 /*pre, pre > code { line-height: 1.4; color: inherit; font-family: Consolas, "Liberation Mono", Courier, monospace; font-weight: normal; }*/
 

assets/css/base.css

@@ -22,7 +22,7 @@ body {
   height: 60px;
 }
 #footer {
-  background-color: #060606;
+  background-color: #f8f9fa;
   padding: 0;
 }
 

assets/css/prettify.css

@@ -1,118 +1,91 @@
-/*
- * Derived from einaros's Sons of Obsidian theme at
- * http://studiostyl.es/schemes/son-of-obsidian by
- * Alex Ford of CodeTunnel:
- * http://CodeTunnel.com/blog/post/71/google-code-prettify-obsidian-theme
- */
+/* Code container */
+pre.prettyprint {
+    background: #f8f9fa;
+    border: 1px solid #dee2e6;
+    padding: 10px;
+    border-radius: 4px;
+    color: #2d2d2d;
+}
 
-.str
-{
-    color: #EC7600;
+/* Line numbers */
+ol.linenums {
+    margin: 0;
+    padding-left: 40px;
 }
-.kwd
-{
-    color: #93C763;
-}
-.com
-{
-    color: #66747B;
-}
-.typ
-{
-    color: #678CB1;
-}
-.lit
-{
-    color: #FACD22;
-}
-.pun
-{
-    color: #F1F2F3;
-}
-.pln
-{
-    color: #F1F2F3;
-}
-.tag
-{
-    color: #8AC763;
-}
-.atn
-{
-    color: #E0E2E4;
-}
-.atv
-{
-    color: #EC7600;
-}
-.dec
-{
-    color: purple;
-}
-pre.prettyprint
-{
-    border: 0px solid #888;
-}
-ol.linenums
-{
-    margin-top: 0;
-    margin-bottom: 0;
-}
-.prettyprint {
-    background: #000;
-}
-li.L0, li.L1, li.L2, li.L3, li.L4, li.L5, li.L6, li.L7, li.L8, li.L9
-{
-    color: #555;
+
+li.L0, li.L1, li.L2, li.L3, li.L4,
+li.L5, li.L6, li.L7, li.L8, li.L9 {
+    color: #999;
     list-style-type: decimal;
 }
+
 li.L1, li.L3, li.L5, li.L7, li.L9 {
-    background: #111;
+    background: #f1f3f5;
 }
-@media print
-{
-    .str
-    {
-        color: #060;
+
+/* Syntax elements */
+.str {        /* strings */
+    color: #d47500;
 }
-    .kwd
-    {
-        color: #006;
-        font-weight: bold;
+
+.kwd {        /* keywords */
+    color: #446e9b;
+    font-weight: 600;
 }
-    .com
-    {
-        color: #600;
+
+.com {        /* comments */
+    color: #6c757d;
     font-style: italic;
 }
-    .typ
-    {
-        color: #404;
-        font-weight: bold;
+
+.typ {        /* types */
+    color: #3399f3;
 }
-    .lit
-    {
-        color: #044;
+
+.lit {        /* literals */
+    color: #3cb521;
 }
-    .pun
-    {
-        color: #440;
+
+.pun {        /* punctuation */
+    color: #495057;
 }
-    .pln
-    {
-        color: #000;
+
+.pln {        /* plain text */
+    color: #2d2d2d;
 }
-    .tag
-    {
-        color: #006;
-        font-weight: bold;
+
+.tag {        /* HTML tags */
+    color: #446e9b;
+    font-weight: 600;
 }
-    .atn
-    {
-        color: #404;
+
+.atn {        /* attribute names */
+    color: #6f42c1;
 }
-    .atv
-    {
-        color: #060;
+
+.atv {        /* attribute values */
+    color: #d47500;
 }
+
+.dec {        /* decimals */
+    color: #3cb521;
+}
+
+/* Print styles */
+@media print {
+    pre.prettyprint {
+        background: #fff;
+        border: 1px solid #ccc;
+    }
+
+    .str { color: #060; }
+    .kwd { color: #006; font-weight: bold; }
+    .com { color: #600; font-style: italic; }
+    .typ { color: #404; font-weight: bold; }
+    .lit { color: #044; }
+    .pun { color: #440; }
+    .pln { color: #000; }
+    .tag { color: #006; font-weight: bold; }
+    .atn { color: #404; }
+    .atv { color: #060; }
 }

content/blog/MOP2/MOP3-real-hardware.adoc

@@ -0,0 +1,79 @@
+= Running my kernel on real hardware
+Kamil Kowalczyk
+2026-02-08
+:jbake-type: post
+:jbake-tags: MOP2 osdev
+:jbake-status: published
+
+Developing a custom operating system is notoriously difficult. These days we have awesome developer tools
+such as QEMU or Bochs. Despite that, those tools can sometimes turn out to be faulty or simply not show the entire
+truth about the running OS - especially QEMU, which while works, is a little too loose and allows for some
+correctness issues to slip in (in regards to CPU features, stack alignment, device drivers and so on).
+Because of that, it's very important to test once in a while on real hardware - the code MUST be correct for it to
+work.
+
+At the end I'll tell a short and funny story about my personal experience with QEMU ;).
+
+== In search for the right hardware
+
+**Of course we're talking about x86/PC machines here**
+
+The right hardware will be either very easy or really difficult to buy depending on what platform you're
+developing for.
+
+If your OS is 32 bit (ie. runs on i386-based machines) then you've got a problem. 32 bit machines
+are hard to get these days and are quite expensive due to their high collector value and vintage/retro freaks
+willing to overpay for this electronic scrap. I myself own 2 32 bit intel machines - Pentium S and the OG i386DX,
+but they barely work and I doubt they could handle constantly smashing the reset button and rebooting.
+
+64 bit machines are more modern (duh!) and thus you get a lot of quality-of-life features like USB booting,
+which is miles better than writing floppies or CD disks, just to find out your kernel doesn't work and discard
+them, producing a mound of plastic garbage in the process.
+
+Just because a machine is 64 bit, it doesn't make it better for development! A CPU is not everything, it is rather
+just one of many puzzle pieces, which make up the entirety of the PC. This is why you have to mind what
+peripherals your machine offers. A lot of modern PCs don't have legacy PS/2 ports or a serial port - and you
+can forget about LPT (rip). Everything is USB these days, which means that to have some simple debug printing
+(or just any output for that matter) you will need a graphics driver or a USB driver to send data. As you can
+imagine, this is really difficult to have when your OS is taking it's baby steps, while a serial PC driver is
+like 30 lines of code. That's why it's important to have these simple, primitive, yet super useful peripherals
+available.
+
+=== HP Thin Client T730
+
+++++
+<img src="/img/HP_t730_1.jpg" width="500px" height="500px" alt="HP T730" />
+<img src="/img/HP_t730_2.jpg" width="500px" height="500px" alt="HP T730" />
+++++
+
+This is my machine of choice for this project. It's 64 bit, has all the cool legacy peripherals (a serial port
+most importantly) and is very small/light. As you can see it easily fits on my table and doesn't require too much
+space. Also a big plus is that if I get bored of OS dev eventually, I can use it as a secondary node in my home
+cloud infra.
+
+Specs include:
+
+* 32 GB hard drive; I can mount it out and use a bigger SSD, but I don't need to for now
+* AMD RX-427BB
+* 8 GB of RAM
+* 2 serial ports
+* LPT port
+* PS/2 mouse and keyboard
+
+Overall this mini PC is a big steal! It was only ~ 250 PLN or ~ 70 USD!
+
+++++
+<img src="/img/T730_boot_Options.jpg" width="500px" height="500px" alt="HP T730 boot options" />
+++++
+
+Also this BIOS feature is really important to me - multiprocessor or SMP support on/off. This is amazing for
+testing the correctness of SMP code, both in single core and multi core environment. May seem like a basic thing,
+but actually not many BIOSes support this.
+
+== Showcase
+
+++++
+<video width="800px" controls>
+  <source src="/img/MOP3_video_test.mp4" type="video/mp4" />
+</video>
+++++