; COM program displaying hello world string
; This is primarily for testing purposes
org 0x0100
main: mov si, string
mov ah, 0x0e
xor bx, bx
.loop: lodsb
test al, al
jz .end
int 0x10
jmp .loop
.end: ret
string: db "Hello world!", 0x0A, 0x0D, 0