cpu 8086 org 0x7C00 %include "inc/bpb.asm" %include "inc/mbr.asm" %include "inc/fcb.asm" %include "inc/dpt.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 cmp dl, 0x80 jc .k sub dl, (0x80-2) .k: mov [defdrv], dl call dskrst mov bx, testfcb call fcbfst hlt: hlt jmp hlt %include "kernel/far.asm" %include "kernel/fcb.asm" %include "kernel/drive.asm" section .data %defstr VERSIONSTR VERSION banner: db "RDOS ", VERSIONSTR, 0x0A, 0x0D testfcb: db 0 db "HELLO ", "COM" times 30 db 0 section .bss stack: resb stacksize