user: Demonstrate the C code that generates the assembly output below:

```asm
<str2dbl>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x28(%rbp)
  movl   $0x0,-0x18(%rbp)
  mov    -0x28(%rbp),%rax
  mov    $0x0,%edx
  mov    $0x2e,%esi
  mov    %rax,%rdi
  call   <firstIndexOf@plt>
  mov    %eax,-0xc(%rbp)
  movl   $0x0,-0x10(%rbp)
  pxor   %xmm0,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  mov    -0x28(%rbp),%rax
  movzbl (%rax),%eax
  cmp    $0x2d,%al
  jne    L57
  movl   $0x1,-0x10(%rbp)
  movl   $0x1,-0x18(%rbp)
L57:
  cmpl   $0xffffffff,-0xc(%rbp)
  jne    L40
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  mov    %eax,-0xc(%rbp)
  mov    -0xc(%rbp),%eax
  sub    $0x1,%eax
  sub    -0x10(%rbp),%eax
  mov    %eax,-0x14(%rbp)
  jmp    L54
L67:
  mov    -0x14(%rbp),%eax
  mov    %eax,%esi
  mov    $0xa,%edi
  call   <pow@plt>
  movsbl %al,%eax
  mov    -0x18(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rdx),%edx
  movsbl %dl,%edx
  sub    $0x30,%edx
  imul   %edx,%eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  -0x8(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  addl   $0x1,-0x18(%rbp)
  subl   $0x1,-0x14(%rbp)
L54:
  cmpl   $0x0,-0x14(%rbp)
  jns    L67
  jmp    L2
L40:
  mov    -0xc(%rbp),%eax
  sub    $0x1,%eax
  sub    -0x10(%rbp),%eax
  mov    %eax,-0x18(%rbp)
  cmpl   $0x0,-0x10(%rbp)
  setne  %al
  movzbl %al,%eax
  mov    %eax,-0x14(%rbp)
  jmp    L35
L17:
  mov    -0x18(%rbp),%eax
  mov    %eax,%esi
  mov    $0xa,%edi
  call   <pow@plt>
  movsbl %al,%eax
  mov    -0x14(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rdx),%edx
  movsbl %dl,%edx
  sub    $0x30,%edx
  imul   %edx,%eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  -0x8(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  subl   $0x1,-0x18(%rbp)
  addl   $0x1,-0x14(%rbp)
L35:
  mov    -0x14(%rbp),%eax
  cmp    -0xc(%rbp),%eax
  jl     L17
  addl   $0x1,-0x14(%rbp)
  movl   $0xffffffff,-0x18(%rbp)
  jmp    L93
L68:
  mov    -0x18(%rbp),%eax
  mov    %eax,%esi
  mov    $0xa,%edi
  call   <pow@plt>
  movsbl %al,%eax
  mov    -0x14(%rbp),%edx
  movslq %edx,%rcx
  mov    -0x28(%rbp),%rdx
  add    %rcx,%rdx
  movzbl (%rdx),%edx
  movsbl %dl,%edx
  sub    $0x30,%edx
  imul   %edx,%eax
  pxor   %xmm0,%xmm0
  cvtsi2sd %eax,%xmm0
  movsd  -0x8(%rbp),%xmm1
  addsd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%rbp)
  subl   $0x1,-0x18(%rbp)
  addl   $0x1,-0x14(%rbp)
L93:
  mov    -0x28(%rbp),%rax
  mov    %rax,%rdi
  call   <strlen@plt>
  cmp    %eax,-0x14(%rbp)
  jl     L68
L2:
  cmpl   $0x0,-0x10(%rbp)
  je     L51
  movsd  -0x8(%rbp),%xmm0
  movq   D8(%rip),%xmm1
  xorpd  %xmm1,%xmm0
  movsd  %xmm0,-0x8(%rbp)
L51:
  movsd  -0x8(%rbp),%xmm0
  movq   %xmm0,%rax
  movq   %rax,%xmm0
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_tag: D8
type: f32[2]

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

assistant: ```c
double str2dbl(char *str) {
  int j = 0, i, n = firstIndexOf(str, '.', 0), neg = 0;
  double result = 0;
  if (str[0] == '-') {
    neg = 1;
    j = 1;
  }
  if (n == -1) {
    n = strlen(str);
    for (i = n - 1 - neg; i >= 0; i--) {
      result += pow(10, i) * (str[j] - 48);
      j++;
    }
  } else {
    j = n - 1 - neg;
    for (i = neg ? 1 : 0; i < n; i++) {
      result += pow(10, j) * (str[i] - 48);
      j--;
    }
    i++;
    j = -1;
    for (i = i; i < strlen(str); i++) {
      result += pow(10, j) * (str[i] - 48);
      j--;
    }
  }
  if (neg)
    result *= -1;
  return result;
}
```