rdos/boot/kernel.asm

35 lines
445 B
NASM

cpu 8086
org 0x7C00
%include "inc/bpb.asm"
%include "inc/mbr.asm"
; kernel stack size in words
%define stacksize 512
init: cli
xor ax, ax
mov ds, ax
mov es, ax
mov ss, ax
mov sp, ( stack+stacksize )
print_banner: mov si, banner
mov ah, 0x0e
xor bx, bx
.loop: lodsb
int 0x10
cmp al, 0x0D
jnz .loop
hlt: hlt
jmp hlt
banner: db "rdos kernel", 0x0A, 0x0D
end: align 512
section .bss
stack: resb stacksize