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Fix #48

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Philipp Oppermann
2015-11-19 15:20:30 +01:00
parent 25122bc05c
commit 0e31d4a221
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posts/2015-08-25-entering-longmode.md
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@@ -36,7 +36,7 @@ At address `0xb8000` begins the so-called [VGA text buffer]. It's an array of sc
[VGA text buffer]: https://en.wikipedia.org/wiki/VGA-compatible_text_mode [VGA text buffer]: https://en.wikipedia.org/wiki/VGA-compatible_text_mode
[future post]: {{ site.url }}{{ page.next.next.url }} [future post]: {{ site.url }}{{ page.next.next.url }}
A screen character consists of a 8 byte color code and a 8 byte [ASCII] character. We used the color code `4f` for all characters, which means white text on red background. `0x52` is an ASCII `R`, `0x45` is an `E`, `0x3a` is a `:`, and `0x20` is a space. The second space is overwritten by the given ASCII byte. Finally the CPU is stopped with the `hlt` instruction. A screen character consists of a 8 bit color code and a 8 bit [ASCII] character. We used the color code `4f` for all characters, which means white text on red background. `0x52` is an ASCII `R`, `0x45` is an `E`, `0x3a` is a `:`, and `0x20` is a space. The second space is overwritten by the given ASCII byte. Finally the CPU is stopped with the `hlt` instruction.
[ASCII]: https://en.wikipedia.org/wiki/ASCII [ASCII]: https://en.wikipedia.org/wiki/ASCII