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xor ax, ax
xor bx, ax
mov ax,8
push ax
mov bx,7
push bx
pop ax

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[section .text]
    ; Code goes here

[section .data]
    ; Data goes here
someValue:
    dd  0x0badbeef

[section .bss]
    resb 1024
stack:

Code: Select all

bits 16
org 7c00h
      
start: jmp prog

msg db "Hello, Joker!",0    

prog:        
    mov bp, 7c02h 
    mov es, si

    xor ax, ax
    mov ah, 0
    mov al, 13h
    int 10h

    xor ax, ax
    mov bx, ax
    mov cx, ax
	mov ah, 13h
	mov al, 0
	mov bh, 0
	mov bl, 100b
	mov cx, 13
	mov dh, 5
	mov dl, 5  
    int 10h

    cli
    hlt

TIMES 510 - ($-$$) db 0
DW 0xAA55

Code: Select all

bits 16
org 7c00h
     
start: jmp prog
msg db "Hello, Joker!",0   

prog:   
    mov     ah, 00h        ; set default video mode   
    mov     al, 03h         ; 80 collotions x 25 rows 
    int     10h                ; Do it. 

   lea si, msg        ; Move the message to print into SI
   Call  PrintString   ; Print text to the screen.
   jmp  $                 ; Halt PC

PrintString:
     mov   AH, 0Eh    ; Request print. 
p_loop: 
   lodsb                  ; Load byte from SI into AL. 
    cmp    AL, 0       ; is ALs value 0?   
    jz        p_done    ; If so were done here.    
    int      10h          ; use BIOS to Print charictar. 
    jmp     p_loop     ; Do it again. 
p_done: 
    ret              ; Return to call.  

TIMES 510 - ($-$$) db 0   ; Add pading to make loader 512 bytes
DW 0xAA55                    ; two extra bytes that make up a boot signature for the full 512.