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Strange BIOS int 10h ah=0eh teletype output on Sony Vaio
I am having something bizarre on a Sony Vaio when playing with a boot sector. I am compiling some code with nasm, copying it to a usb stick and booting that on the Vaio.
I am running this code:
[ORG 7...
freewill
Votes: 0
Answers: 0
Why does Bochs say "No bootable devices found" when I concatenate a kernel to my boot sector?
I am following along with this guide in order to try to write my own (very basic) operating system. I have gotten my boot sector to run with Bochs perfectly fine (I've just tested it with writing to t...
jack101yello
Votes: 0
Answers: 0
a20 gate is enabled, after disabling attempts
I've encountered a problem with disabling (for learning purpose) a20 gate.
Here is my bootloader code:
onboot:
xorw %ax, %ax
movw %ax, %ds
movw %ax, %es
movw %ax, %ss
movw $0x7c...
TheCPPNoob
Votes: 0
Answers: 0
Assembly string issue
I was trying to make an OS and started learning x86 assembly language. I learnt some basics of BIOS and 16-bit mode. Although the issue I am facing right now is that when I load the .bin file in qemu ...
Uman Sheikh
Votes: 0
Answers: 0