global _start section .data align 16 quad1: dq 0xad0000ceadad00ff quad2: dq 0xffffffffffffffff quad3: dq 0x0000000000000000 quad4: dq 0x7fff8000ffff0808 myquad: dq 0xad0000ceadad00ff mydword: dd 0xcafebabe myaddress: dq 0x00adbeefc0de00ce %include "header.inc" movq mm0, [quad1] movq mm1, [quad2] movq mm2, [quad3] movq mm3, [quad4] movq mm4, [quad1] psubw mm1, [quad2] psubw mm1, mm2 psubw mm2, [quad1] psubw mm2, mm3 psubw mm3, [quad3] psubw mm3, mm4 psubw mm4, [quad1] psubw mm4, mm1 psubw mm4, mm3 %include "footer.inc"