global _start
section .data
summand1: dq 0x0102030405060708
summand2: db '0', '0', '0', '0', '0', '0', '0', '0'
summe: dq 0x0000000000000000
len: equ 8
section .text
_start:
movq mm0, [summand1]
movq mm1, [summand2]
paddb mm0, mm1
movq [summe], mm0
mov edx, len
mov ecx, summe
mov ebx, 1
mov eax, 4
int 0x80
mov ebx, 0
mov eax, 1
int 0x80