1 2 # count for 1 million instructions 3 # total is 2 + 1 + 499997*2 + 3 4 5 .globl _start 6 _start: 7 xor %rcx,%rcx # not needed, pads total to 1M 8 xor %rax,%rax # not needed, pads total to 1M 9 10 mov $499997,%rcx # load counter 11 test_loop: 12 dec %rcx # repeat count times 13 jnz test_loop 14 15 #================================ 16 # Exit 17 #================================ 18 exit: 19 xor %rdi,%rdi # we return 0 20 mov $60,%rax # put exit syscall number (60) in rax 21 syscall 22 23
