global _start section .data align 16 myquad: dq 0x1234567890abcdef mydword: dd 0xcafebabe myaddress: dd 0xdeadbeef %include "header.inc" movd mm0, [mydword] movd [myaddress], mm0 movd mm1, [myaddress] movd eax, mm0 movd mm4, eax mov eax, 0x42 movd mm6, eax %include "footer.inc"