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0xAX 2015-02-10 22:58:32 +06:00
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Booting/linux-bootstrap-1.md
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@ -133,7 +133,14 @@ We will see:
![Simple bootloader which prints only `!`](http://oi60.tinypic.com/2qbwup0.jpg)
In this example we can see that this code will be executed in 16 bit real mode and will start at 0x7c00 in memory. After the start it calls the [0x10](http://www.ctyme.com/intr/rb-0106.htm) interrupt which just prints `!` symbol. It fills rest of 510 bytes with zeros and finish with two magic bytes 0xaa and 0x55.
In this example we can see that this code will be executed in 16 bit real mode and will start at 0x7c00 in memory. After the start it calls the [0x10](http://www.ctyme.com/intr/rb-0106.htm) interrupt which just prints `!` symbol. It fills rest of 510 bytes with zeros and finish with two magic bytes `0xaa` and `0x55`.
Although you can see binary dump of it with `objdump` util:
```
nasm -f binary boot.nasm
objdump -D -b binary -mi386 -Maddr16,data16,intel boot
```
A real-world boot sector has code for continuing the boot process and the partition table... instead of a bunch of 0's and an exclamation point :) Ok, so, from this moment BIOS handed control to the bootloader and we can go ahead.