stdlib/erand48_r.s

   1         .text
   2         .p2align 4,,15
   3         .globl  __erand48_r
   4         .hidden __erand48_r
   5         .type   __erand48_r, @function
   6 __erand48_r:
   7         pushq   %rbp
   8         pushq   %rbx
   9         movq    %rdi, %rbp
  10         movq    %rdx, %rbx
  11         subq    $24, %rsp
  12         call    __drand48_iterate
  13         testl   %eax, %eax
  14         js      .L3
  15         movzwl  2(%rbp), %edx
  16         movzwl  4(%rbp), %ecx
  17         movl    %edx, %eax
  18         sall    $4, %ecx
  19         sall    $20, %edx
  20         shrw    $12, %ax
  21         movzwl  %ax, %eax
  22         orl     %eax, %ecx
  23         movzwl  0(%rbp), %eax
  24         salq    $32, %rcx
  25         sall    $4, %eax
  26         orl     %edx, %eax
  27         movabsq $4607182418800017408, %rdx
  28         orq     %rdx, %rcx
  29         orq     %rax, %rcx
  30         xorl    %eax, %eax
  31         movq    %rcx, 8(%rsp)
  32         movsd   8(%rsp), %xmm0
  33         subsd   .LC0(%rip), %xmm0
  34         movsd   %xmm0, (%rbx)
  35 .L1:
  36         addq    $24, %rsp
  37         popq    %rbx
  38         popq    %rbp
  39         ret
  40         .p2align 4,,10
  41         .p2align 3
  42 .L3:
  43         movl    $-1, %eax
  44         jmp     .L1
  45         .size   __erand48_r, .-__erand48_r
  46         .weak   erand48_r
  47         .set    erand48_r,__erand48_r
  48         .section        .rodata.cst8,"aM",@progbits,8
  49         .align 8
  50 .LC0:
  51         .long   0
  52         .long   1072693248
  53         .hidden __drand48_iterate