1.psize 0 2.text 3# test segment reg insns with memory operand 4 movw %ds,(%rax) 5 mov %ds,(%rax) 6 movw (%rax),%ds 7 mov (%rax),%ds 8# test segment reg insns with REX 9 movq %ds,%rax 10 movq %rax,%ds 11 # Force a good alignment. 12 .p2align 4,0 13