BrokenThorn Entertainment

I have very simple bootloader which i am trying to run through qemu in linux. But qemu gets idle and show "booting from floppy" I dont know how to make it work! I have included bootloader code and makefile script. Here is the code for the bootloader org 0 bits 16 jmp boot1 bootmsg db "Preparing to L...

Ok, Thank You,
Actually tutorial said that since we are not using virtual at this point this bit should be set to 0. Thats y i got confused!!

access bit 7 (bit 47 of descriptor ) says: it should be set to 0 if we are not using virtual mode
But we are setting this bit, why ?

db 10011010b ; access

I am using windows 8 to develop my own OS and I faced so many difficulties: here is what you can do. download vfd for both 64 bit and previous version(32bit) that ran on windows xp. you need to digitally sign vfd drivers. To do so restart ur vista and try pressing F8 AFTER THAT you will get several ...

I am not sure, but as far as i found about the bootloader.
bios loads the bootcode at CS:0, ip 07c0
So to make ds and cs point to same are we make ds and other segments 0

I found out. The answer is unused area in memory area, where we can load our data

http://staff.ustc.edu.cn/~xyfeng/resear ... ne/mem.htm

Why are we reading the "KRNLD SYS" file at the memory address 0050:0000 ?
Is there any specific reason or just randomly ? or I can load the file anywhere I where I want ?