I'm new at osdev, and i made a simple bootsector that activates the a20 gate and enters protected mode.
I'm triyng to call an external C function, but my bootsector code is assembled with nasm -f bin boot.asm (bin doesn't support extern calls)
I'm using gcc -ffreestanding -c kernel.c to compile the C file.
I tried to use extern functions, but i'm using BIN filetype.
I researched about, and found that it is possible to load the kernel memory address with int 13h, but I couldn't do it
