cpu 8086
		org 0x7C00

		jmp init

%include	"kernel/fd.asm"
%include	"kernel/con.asm"

entry_int21:	iret

init:		; install int 21h handler
		mov ax, cs
		mov ds, ax
		mov es, ax
		mov word [4*0x21], entry_int21
		mov word [4*0x21+2], cs

		mov word [fd_table], con_ftab

		; print banner
		mov dx, .banner
		mov cx, 13
		mov bx, 0
		call con_write

		; execute shell
		mov ax, 0x4B00
		mov dx, .shellfn
		int 0x21

.hlt:		hlt
		jmp .hlt

.banner:	db "rdos kernel", 0x0A, 0x0D

.shellfn:	db "SHELL.COM", 0