# Author: Susam Pal <http://susam.in/>
#
# To assemble and link this code, execute the following commands:-
# as -o char.o char.s
# ld --oformat binary -o char char.o
#
# To write this code into the boot sector of a device, say /dev/sdb:-
# dd if=char of=/dev/sdb
# echo -ne "\x55\xaa" | dd seek=510 bs=1 of=/dev/sdb

.code16
.globl _start
.org 0x00
.section .text
_start:
  movw $0x0C70, %ax
  movw %ax, %ds
  movw %ax,%es

  movw $0x8000,%ax
  movw %ax,%ss
 movw $0xf000,%ax
 movw %ax,%sp

	movw $message,%si
	call print

print:
	push %ax
	push %bx
.debut: 
	lodsb
	cmpw %ax,0
	jz .end
	movb $0x0E,%ah
	movw $0x07,%bx
	int $0x10
	jmp .debut
.end:
	pop %bx
	pop %ax
	ret
idle:
	jmp idle
.section .data
message:
	.asciz "Hello the world"