BrokenThorn Entertainment

I am reading the tutorial 6 bootloader 4 chapter As written here : absolute sector = (logical sector / sectors per track) + 1 and the code written after this: xor dx, dx ; prepare dx:ax for operation div WORD [bpbSectorsPerTrack] ; divide by sectors per track inc dl ; add 1 (obsolute sector formula)...

thank you.

In chapter 6 : Bootloaders 4
under the topic File system theory

Because of the limited cluster size, The maximum number of files possible is 4,077

why is this so? can you explain?

the kernel is being copied but is not executing
actually the system restarts when this instruction is reached: (from stage2 boot)

I am trying to build a bootloader from the tutorial of operating system development series. i have a separate kernel file which i made earlier and used grub to boot it. I downloaded the Demo4 package from here and tried to use. The kernel file provided with the Demo4 package is being loaded. But whe...

In tutorial 5 (Bootloaders 3) of operating system developement series : The Media Descriptor Byte (bpbMedia) is a byte code that contains information about the disk. This byte is a Bit Pattern: Bits 0: Sides/Heads = 0 if it is single sided, 1 if its double sided Bits 1: Size = 0 if it has 9 sectors ...

thank you

we are yet in real mode. how can we cross the 1mb th limit? will not it generate a fault? that is my confusion.

hello...i am new to this site Here is my query: In Tutorial 4 of Operating System Development series (Bootloaders 2) there is a portion in segment offset addressing base address = base address * segment size (16) + offset 07C0:0000 = 07C0 * 16 (decimal) + 0 = 07C00 + 0 = 0x7C00 And in tutorial 5 at ...