string_example.asm

jmp execution
boot_string:
        db 'String Hype',0 ; Null termination Hype
;;Requires BX to have the start address of our String , e.g. boot_string
print_string:
        mov ah,0x0e
        add bx,0x7c00;;//OFfset for getting the true memory adress
        ps_l:
                mov al,[bx]
                cmp al,0
                je fin
                int 0x10
                inc bx
                jmp ps_l
        fin:
                ret

execution:
        mov bx,boot_string
        call print_string
        jmp $


times 510-($-$$) db 0
dw 0xaa55

string_example.hex

eb 1e 53 74 72 69 6e 67 20 48 79 70 65 00 b4 0e
81 c3 00 7c 8a 07 3c 00 74 05 cd 10 43 eb f5 c3
bb 02 00 e8 e8 ff eb fe 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
*
00 00 00 00 00 00 00 00 00 00 00 00 00 00 55 aa