32 
  33   // Get current sp
  34       .inline _get_current_sp,0
  35       .volatile
  36       movq     %rsp, %rax
  37       .end
  38 
  39   // Get current fp
  40       .inline _get_current_fp,0
  41       .volatile
  42       movq     %rbp, %rax
  43       .end
  44 
  45   // Support for os::rdtsc()
  46       .inline _raw_rdtsc,0
  47       rdtsc
  48       salq     $32, %rdx
  49       orq      %rdx, %rax
  50       .end
  51 
  52   // Support for jint Atomic::add(jint add_value, volatile jint* dest)
  53       .inline _Atomic_add,2
  54       movl     %edi, %eax      // save add_value for return
  55       lock
  56       xaddl    %edi, (%rsi)
  57       addl     %edi, %eax
  58       .end
  59 
  60   // Support for jlong Atomic::add(jlong add_value, volatile jlong* dest)
  61       .inline _Atomic_add_long,2
  62       movq     %rdi, %rax      // save add_value for return
  63       lock
  64       xaddq    %rdi, (%rsi)
  65       addq     %rdi, %rax
  66       .end
  67 
  68   // Support for jint Atomic::xchg(jint exchange_value, volatile jint* dest).
  69       .inline _Atomic_xchg,2
  70       xchgl    (%rsi), %edi
  71       movl     %edi, %eax
  72       .end
  73 
  74   // Support for jlong Atomic::xchg(jlong exchange_value, volatile jlong* dest).
  75       .inline _Atomic_xchg_long,2
  76       xchgq    (%rsi), %rdi
  77       movq     %rdi, %rax
  78       .end
  79 
  80   // Support for jbyte Atomic::cmpxchg(jbyte exchange_value,

  32 
  33   // Get current sp
  34       .inline _get_current_sp,0
  35       .volatile
  36       movq     %rsp, %rax
  37       .end
  38 
  39   // Get current fp
  40       .inline _get_current_fp,0
  41       .volatile
  42       movq     %rbp, %rax
  43       .end
  44 
  45   // Support for os::rdtsc()
  46       .inline _raw_rdtsc,0
  47       rdtsc
  48       salq     $32, %rdx
  49       orq      %rdx, %rax
  50       .end
  51 
  52   // Support for jint Atomic::add(volatile jint* dest, jint add_value)
  53       .inline _Atomic_add,2
  54       movl     %edi, %eax      // save add_value for return
  55       lock
  56       xaddl    %edi, (%rsi)
  57       addl     %edi, %eax
  58       .end
  59 
  60   // Support for jlong Atomic::add(volatile jlong* dest, jlong add_value)
  61       .inline _Atomic_add_long,2
  62       movq     %rdi, %rax      // save add_value for return
  63       lock
  64       xaddq    %rdi, (%rsi)
  65       addq     %rdi, %rax
  66       .end
  67 
  68   // Support for jint Atomic::xchg(jint exchange_value, volatile jint* dest).
  69       .inline _Atomic_xchg,2
  70       xchgl    (%rsi), %edi
  71       movl     %edi, %eax
  72       .end
  73 
  74   // Support for jlong Atomic::xchg(jlong exchange_value, volatile jlong* dest).
  75       .inline _Atomic_xchg_long,2
  76       xchgq    (%rsi), %rdi
  77       movq     %rdi, %rax
  78       .end
  79 
  80   // Support for jbyte Atomic::cmpxchg(jbyte exchange_value,