arno/linux-insides
1
0
Fork 0
mirror of https://github.com/0xAX/linux-insides.git synced 2024-12-22 14:48:08 +00:00
Code Issues Releases Wiki Activity

Update linux-bootstrap-1.md

Browse Source
This commit is contained in:
Z 2020-11-21 16:20:04 +08:00 committed by GitHub
parent ff558bcccd
commit 7af1d84b19
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 1 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
Booting/linux-bootstrap-1.md
View File

@ -141,7 +141,7 @@ You will see:
![Simple bootloader which prints only `!`](images/simple_bootloader.png) ![Simple bootloader which prints only `!`](images/simple_bootloader.png)
In this example, we can see that the code will be executed in `16-bit` real mode. After starting, it calls the [0x10](http://www.ctyme.com/intr/rb-0106.htm) interrupt, which just prints the `!` symbol. It fills the remaining `510` bytes with zeros and finishes with the two magic bytes `0xaa` and `0x55`. In this example, we can see that the code will be executed in `16-bit` real mode. After starting, it calls the [0x10](http://www.ctyme.com/intr/rb-0106.htm) interrupt, which just prints the `!` symbol. The times directive will pad that number of bytes up to 510th byte with zeros and finishes with the two magic bytes `0xaa` and `0x55`.
You can see a binary dump of this using the `objdump` utility: You can see a binary dump of this using the `objdump` utility: