C Kernel - Works fine on VM but not actual computer?

Question

I am making a basic C kernel. (Loaded by an assembly program) I am compiling it with an i686-elf cross compiler for windows. My C code is as follows:

void c         


        

Answer 1

You're not initializing the segment registers. Try changing the start of your bootsector to something like this:

xor ax, ax
mov bp, 0x9000
mov ds, ax
mov es, ax
mov ss, ax ; disables interrupts until the end of the next instruction
mov sp, bp
mov [BOOT_DRIVE], dl