boot1.asm

bits 16 ; tell NASM this is 16 bit code
org 0x7c00 ; tell NASM to start outputting stuff at offset 0x7c00
boot:
    mov si,hello ; point si register to hello label memory location
    mov ah,0x0e ; 0x0e means 'Write Character in TTY mode'
.loop:
    lodsb
    or al,al ; is al == 0 ?
    jz halt  ; if (al == 0) jump to halt label
    int 0x10 ; runs BIOS interrupt 0x10 - Video Services
    jmp .loop
halt:
    cli ; clear interrupt flag
    hlt ; halt execution
hello: db "Hello world you can go to hell lol don't at me!Letâs get hello world printing to the screen. To do this we’re going to use the âWeen. To do this weâre going to use the âWrite Character in TTY mode o this weâre going to use the âWrite Characo this weâre going to use the âWrite Charing  âWrito this weâre going to use the âWrite Characo this weâre going to use the âWrite Characo this weâre going to use the âWrite Characo this weâre going to use the âWrite Characo this weâre going",0
times 510 - ($-$$) db 0 ; pad remaining 510 bytes with zeroes
dw 0xaa55 ; magic bootloader magic - marks this 512 byte sector bootable!