[SECTION .text]
global _start
_start:
        mov eax, 0
        push eax
        push 0x000a0d21
        push "orld"
        push ??       ; (complete)
        push ??       ; (complete)

        mov eax, ??   ; (complete) opcode for write system call
        mov ebx, ??   ; (complete) 1st arg is the fd
        ?? 	      ; (complete) 2nd arg is the string address
	mov edx, 15   ; 3rd arg, len
        int 0x80      ; system call interrupt

        mov eax, 1   ; opcode for exit system call
        mov ebx, 0   ; 1st arg, exit(0)
        int 0x80     ; system call interrupt