user: 下面的汇编指令对应的C源代码是什么:

```asm
<strtod_flags>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    %rdi,%r14
  mov    %rsi,%r13
  mov    %edx,%r12d
  mov    %rdi,%rbx
L89:
  mov    %rbx,%r15
  add    $0x1,%rbx
  movzbl -0x1(%rbx),%ebp
  movsbl %bpl,%edi
  call   <isspace@plt>
  test   %rax,%rax
  jne    L89
  mov    $0x0,%ecx
  test   $0x1,%r12b
  jne    L103
  cmp    $0x2b,%bpl
  je     L256
  cmp    $0x2d,%bpl
  jne    L103
  mov    $0x1,%ecx
L300:
  movzbl (%rbx),%ebp
  lea    0x2(%r15),%rbx
L103:
  mov    $0x0,%edx
  mov    $0x0,%eax
  movsd  D6(%rip),%xmm1
  pxor   %xmm0,%xmm0
  mov    $0x1,%r8d
  mov    %r12d,%edi
  and    $0x4,%edi
  mov    %r12d,%esi
  and    $0x2,%esi
L155:
  cmp    $0x2e,%bpl
  je     L17
  cmp    $0x2c,%bpl
  je     L252
  lea    -0x30(%rbp),%r9d
  cmp    $0x9,%r9b
  ja     L308
  add    $0x1,%eax
  mulsd  D8(%rip),%xmm0
  movsbl %bpl,%ebp
  sub    $0x30,%ebp
  pxor   %xmm2,%xmm2
  cvtsi2sd %ebp,%xmm2
  addsd  %xmm2,%xmm0
  test   %edx,%edx
  je     L18
  mulsd  D8(%rip),%xmm1
  jmp    L18
L256:
  mov    $0x0,%ecx
  jmp    L300
L17:
  test   %esi,%esi
  je     L79
L308:
  and    $0xffffffdf,%ebp
  cmp    $0x45,%bpl
  jne    L13
  test   $0x8,%r12b
  jne    L13
  test   %eax,%eax
  je     L13
  movzbl (%rbx),%eax
  cmp    $0x2b,%al
  je     L55
  cmp    $0x2d,%al
  je     L267
  lea    0x1(%rbx),%rsi
  mov    $0x0,%edi
  jmp    L179
L252:
  test   %edi,%edi
  jne    L13
L79:
  test   %edx,%edx
  je     L45
L13:
  test   %eax,%eax
  je     L180
L104:
  test   %r13,%r13
  je     L60
  sub    $0x1,%rbx
  mov    %rbx,0x0(%r13)
L60:
  test   %ecx,%ecx
  je     L11
  xorpd  D20(%rip),%xmm0
L11:
  divsd  %xmm1,%xmm0
L193:
  add    $0x8,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L45:
  mov    %r8d,%edx
L18:
  add    $0x1,%rbx
  movzbl -0x1(%rbx),%ebp
  jmp    L155
L55:
  mov    $0x0,%edi
  jmp    L186
L267:
  mov    $0x1,%edi
L186:
  lea    0x2(%rbx),%rsi
  movzbl 0x1(%rbx),%eax
L179:
  lea    -0x30(%rax),%edx
  cmp    $0x9,%dl
  ja     L104
  movsbl %al,%eax
  lea    -0x30(%rax),%edx
  lea    0x1(%rsi),%rbx
  movzbl (%rsi),%eax
  lea    -0x30(%rax),%esi
  cmp    $0x9,%sil
  ja     L108
L181:
  lea    (%rdx,%rdx,4),%edx
  movsbl %al,%eax
  lea    -0x30(%rax,%rdx,2),%edx
  add    $0x1,%rbx
  movzbl -0x1(%rbx),%eax
  lea    -0x30(%rax),%esi
  cmp    $0x9,%sil
  jbe    L181
L108:
  mov    $0x134,%eax
  cmp    %eax,%edx
  cmovle %edx,%eax
  test   %edx,%edx
  jle    L104
  movsd  D8(%rip),%xmm3
  movapd %xmm3,%xmm2
  jmp    L71
L110:
  divsd  %xmm3,%xmm1
L126:
  sub    $0x1,%eax
  test   %eax,%eax
  jle    L104
L71:
  test   %edi,%edi
  je     L110
  mulsd  %xmm2,%xmm1
  jmp    L126
L180:
  pxor   %xmm0,%xmm0
  test   %r13,%r13
  je     L193
  mov    %r14,0x0(%r13)
  pxor   %xmm0,%xmm0
  jmp    L193
```

tool_calls: name: read_data
arguments: tag: D6
datatype: f64
name: read_data
arguments: tag: D8
datatype: f32[2]
name: read_data
arguments: tag: D20
datatype: f32[4]

tool: D6: 1

tool: {"D8": [0.0,2.5625]}

tool: {"D20": [0.0,-0.0,0.0,0.0]}

assistant: ```c
double strtod_flags(const char *str, const char **ptr, unsigned int flags) {
  char c;
  const char *p = str, *ep;
  double val = 0.0;
  double decimal = 1.0;
  int sign = 0, esign = 0;
  int numbers = 0, dot = 0;
  while (isspace(c = *p++))
    ;
  if (!(flags & 0x01)) {
    switch (c) {
    case '-':
      sign = 1;
    case '+':
      c = *p++;
    }
  }
  for (;; c = *p++) {
    if ((c == '.' && !(flags & 0x02)) || (c == ',' && !(flags & 0x04))) {
      if (dot)
        goto done;
      dot = 1;
      continue;
    }
    if (c >= '0' && c <= '9') {
      numbers++;
      val = (val * 10) + (c - '0');
      if (dot)
        decimal *= 10;
      continue;
    }
    if (c != 'e' && c != 'E')
      goto done;
    if (flags & 0x08)
      goto done;
    break;
  }
  if (!numbers)
    goto done;
  ep = p;
  c = *ep++;
  switch (c) {
  case '-':
    esign = 1;
  case '+':
    c = *ep++;
  }
  if (c >= '0' && c <= '9') {
    p = ep;
    int exponent = c - '0';
    for (;;) {
      c = *p++;
      if (c < '0' || c > '9')
        break;
      exponent *= 10;
      exponent += c - '0';
    }
    if (exponent > 308)
      exponent = 308;
    while (exponent-- > 0) {
      if (esign)
        decimal *= 10;
      else
        decimal /= 10;
    }
  }
done:
  if (!numbers)
    goto no_conversion;
  if (ptr)
    *ptr = p - 1;
  return (sign ? -val : val) / decimal;
no_conversion:
  if (ptr)
    *ptr = str;
  return 0.0;
}
```