user: 这段汇编代码用C语言表示是什么样的?

```asm
<libc_dtos>:
  endbr64
  push   %r15
  mov    $0x20,%edi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x18,%rsp
  movsd  %xmm0,(%rsp)
  call   <malloc@plt>
  pxor   %xmm0,%xmm0
  comisd (%rsp),%xmm0
  mov    %rax,%r12
  ja     L81
  movb   $0x0,(%rax)
  mov    $0x1,%r13d
  mov    $0x1,%esi
  xor    %edx,%edx
  mov    $0x2,%r15d
  xor    %ebp,%ebp
L71:
  cvttsd2si (%rsp),%rbx
  mov    %rbx,0x8(%rsp)
  test   %rbx,%rbx
  jne    L84
  movb   $0x30,(%rax)
  mov    $0x11,%ebx
L46:
  pxor   %xmm1,%xmm1
  movsd  (%rsp),%xmm0
  movb   $0x2e,(%r12,%r13,1)
  xor    %esi,%esi
  cvtsi2sdq 0x8(%rsp),%xmm1
  lea    (%r12,%r15,1),%rdi
  movabs $0x6666666666666667,%r8
  subsd  %xmm1,%xmm0
  movsd  D8(%rip),%xmm1
  nopl   0x0(%rax,%rax,1)
L17:
  mulsd  %xmm1,%xmm0
  cvttsd2si %xmm0,%rcx
  mov    %rcx,%rax
  imul   %r8
  mov    %rcx,%rax
  sar    $0x3f,%rax
  sar    $0x2,%rdx
  sub    %rax,%rdx
  lea    (%rdx,%rdx,4),%rax
  add    %rax,%rax
  sub    %rax,%rcx
  add    $0x30,%ecx
  mov    %cl,(%rdi,%rsi,1)
  add    $0x1,%rsi
  cmp    %rsi,%rbx
  jg     L17
  lea    -0x1(%rbx),%rax
  xor    %edx,%edx
  test   %rbx,%rbx
  cmovle %rdx,%rax
  movb   $0x0,(%rdi,%rax,1)
  add    $0x18,%rsp
  mov    %r12,%rax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L84:
  jle    L41
  movabs $0xcccccccccccccccd,%r9
  mov    %rbx,%rdi
  mov    %rbp,%rsi
  cs nopw 0x0(%rax,%rax,1)
L94:
  mov    %rdi,%rax
  mov    %rsi,%r14
  lea    0x1(%rsi),%rsi
  mul    %r9
  mov    %rsi,%r13
  shr    $0x3,%rdx
  lea    (%rdx,%rdx,4),%r8
  mov    %rdx,%rax
  mov    %rdi,%rdx
  add    %r8,%r8
  sub    %r8,%rdx
  mov    %rdi,%r8
  mov    %rax,%rdi
  add    $0x30,%edx
  mov    %dl,-0x1(%r12,%rsi,1)
  cmp    $0x9,%r8
  jg     L94
  lea    0x2(%r14),%r15
  mov    %rbp,%rax
  sub    %r15,%rax
  lea    0x13(%rax),%rbx
  mov    $0x7,%eax
  cmp    %rax,%rbx
  cmovl  %rax,%rbx
  cmp    %r14,%rbp
  jge    L46
  nopl   0x0(%rax,%rax,1)
L44:
  movsbl (%r12,%r14,1),%esi
  movsbl (%r12,%rbp,1),%edi
  sub    $0x1,%r14
  add    $0x1,%rbp
  call   <swap@plt>
  cmp    %r14,%rbp
  jl     L44
  jmp    L46
  nopl   0x0(%rax)
L81:
  movsd  (%rsp),%xmm3
  movb   $0x2d,(%rax)
  lea    0x1(%rax),%rax
  mov    $0x2,%r13d
  mov    $0x3,%r15d
  mov    $0x2,%esi
  mov    $0x1,%edx
  mov    $0x1,%ebp
  xorpd  D0(%rip),%xmm3
  movsd  %xmm3,(%rsp)
  jmp    L71
L41:
  mov    %rsi,%r15
  mov    %rdx,%r13
  mov    $0x12,%ebx
  jmp    L46
```

tool_calls: name: parse_data
arguments: tag: D8
type: byte[8]
name: parse_data
arguments: tag: D0
type: byte[16]

tool: {"D8": [0x00,0x00,0x00,0x00,0x00,0x00,0x24,0x40]}

tool: {"D0": [0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x80,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00]}

assistant: ```c
char *libc_dtos(double n) {
  char *buff = malloc(32);
  *buff = +0;
  char *a1 = buff;
  long long i = 0, j = 0, k = 0;
  long long x = 0, y = 0, t = 0, z = 0, u = 0, p = 0;
  if (n < 0) {
    a1[j++] = '-';
    n = -n;
    p = 1;
  }
  y = x = n;
  if (x == 0) {
    a1[j++] = '0';
  }
  k = j;
  while (x > 0) {
    t = x % 10;
    x /= 10;
    a1[k++] = t + '0';
  }
  i = k--;
  while (k > j) {
    swap(a1[j], a1[k]);
    j++;
    k--;
  }
  j = i;
  n = n - y;
  a1[j++] = '.';
  u = (19 - j) + p;
  if (u < 7) {
    u = 7;
  }
  z = 0;
  while (z < u) {
    n = n * 10;
    t = (long long)n % 10;
    a1[j++] = t + '0';
    z++;
  }
  a1[j - 1] = '\0';
  return a1;
}
```