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

```asm
<a2f>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  xor    %r12d,%r12d
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rdi,%rbx
  sub    $0x28,%rsp
  jmp    L38
  nopl   (%rax)
L37:
  add    $0x1,%r12d
L38:
  movsbl 0x0(%rbp),%edi
  mov    %rbp,%r13
  add    $0x1,%rbp
  call   <isspace@plt>
  test   %rax,%rax
  jne    L37
  movsbl 0x0(%r13),%edi
  cmp    $0x2d,%dil
  je     L111
  movl   $0x1,0x1c(%rsp)
  movslq %r12d,%r13
  cmp    $0x2b,%dil
  je     L14
L85:
  add    %rbx,%r13
  pxor   %xmm7,%xmm7
  mov    %r13,%r15
  movsd  %xmm7,0x8(%rsp)
  jmp    L128
  nop
L187:
  movsbl -0x1(%r15),%eax
  movsd  D41(%rip),%xmm0
  pxor   %xmm1,%xmm1
  mulsd  0x8(%rsp),%xmm0
  movsbl (%r15),%edi
  sub    $0x30,%eax
  cvtsi2sd %eax,%xmm1
  addsd  %xmm0,%xmm1
  movsd  %xmm1,0x8(%rsp)
L128:
  call   <isdigit@plt>
  mov    %r12d,%ebp
  mov    %r15,%r14
  sub    %r13d,%ebp
  add    %r15d,%ebp
  add    $0x1,%r15
  test   %rax,%rax
  jne    L187
  movsbl (%r14),%edi
  movslq %ebp,%r13
  cmp    $0x2e,%dil
  jne    L122
  add    $0x1,%ebp
  movslq %ebp,%r13
  movsbl (%rbx,%r13,1),%edi
L122:
  movsd  D30(%rip),%xmm7
  add    %rbx,%r13
  mov    %r13,%r15
  movsd  %xmm7,0x10(%rsp)
  jmp    L86
  nopl   0x0(%rax)
L69:
  movsbl -0x1(%r15),%eax
  pxor   %xmm1,%xmm1
  movsbl (%r15),%edi
  movsd  D41(%rip),%xmm0
  mulsd  0x8(%rsp),%xmm0
  sub    $0x30,%eax
  movsd  D41(%rip),%xmm2
  cvtsi2sd %eax,%xmm1
  mulsd  0x10(%rsp),%xmm2
  addsd  %xmm0,%xmm1
  movsd  %xmm2,0x10(%rsp)
  movsd  %xmm1,0x8(%rsp)
L86:
  call   <isdigit@plt>
  mov    %ebp,%r12d
  mov    %r15,%r14
  sub    %r13d,%r12d
  add    %r15d,%r12d
  add    $0x1,%r15
  test   %rax,%rax
  jne    L69
  movsbl (%r14),%edi
  mov    %edi,%eax
  and    $0xffffffdf,%eax
  cmp    $0x45,%al
  jne    L75
  add    $0x1,%r12d
  movslq %r12d,%rax
  movsbl (%rbx,%rax,1),%edi
L75:
  cmp    $0x2d,%dil
  je     L39
  mov    $0x1,%ebp
  movslq %r12d,%rax
  cmp    $0x2b,%dil
  je     L161
L106:
  add    %rax,%rbx
  xor    %r12d,%r12d
  jmp    L144
  xchg   %ax,%ax
L192:
  movsbl -0x1(%rbx),%eax
  lea    (%r12,%r12,4),%edx
  movsbl (%rbx),%edi
  lea    -0x30(%rax,%rdx,2),%r12d
L144:
  call   <isdigit@plt>
  add    $0x1,%rbx
  test   %rax,%rax
  jne    L192
  cmp    $0x1,%ebp
  je     L176
  movsd  D34(%rip),%xmm0
  test   %r12d,%r12d
  jle    L109
  nopl   0x0(%rax)
L35:
  movsd  0x8(%rsp),%xmm6
  add    $0x1,%eax
  mulsd  %xmm0,%xmm6
  movsd  %xmm6,0x8(%rsp)
  cmp    %eax,%r12d
  jne    L35
L109:
  pxor   %xmm0,%xmm0
  cvtsi2sdl 0x1c(%rsp),%xmm0
  mulsd  0x8(%rsp),%xmm0
  divsd  0x10(%rsp),%xmm0
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   (%rax)
L39:
  mov    $0xffffffff,%ebp
L161:
  add    $0x1,%r12d
  movslq %r12d,%rax
  movsbl (%rbx,%rax,1),%edi
  jmp    L106
  nopl   (%rax)
L111:
  movl   $0xffffffff,0x1c(%rsp)
L14:
  add    $0x1,%r12d
  movslq %r12d,%r13
  movsbl (%rbx,%r13,1),%edi
  jmp    L85
  nopl   0x0(%rax)
L176:
  test   %r12d,%r12d
  jle    L109
  movsd  D41(%rip),%xmm0
  xor    %eax,%eax
  nop
L4:
  movsd  0x8(%rsp),%xmm7
  add    $0x1,%eax
  mulsd  %xmm0,%xmm7
  movsd  %xmm7,0x8(%rsp)
  cmp    %eax,%r12d
  jne    L4
  jmp    L109
```

tool_calls: name: extract_symbolic_data
arguments: tag: D41
type: f64
name: extract_symbolic_data
arguments: tag: D30
type: f64
name: extract_symbolic_data
arguments: tag: D34
type: f64

tool: D41: 10

tool: D30: 1

tool: D34: 0.1

assistant: ```c
double a2f(char s[]) {
  double val, power;
  int i, sign, exp_sign, exp;
  for (i = 0; isspace(s[i]); i++)
    ;
  sign = (s[i] == '-') ? -1 : 1;
  if (s[i] == '+' || s[i] == '-')
    i++;
  for (val = 0.0; isdigit(s[i]); i++)
    val = val * 10 + (s[i] - '0');
  if (s[i] == '.')
    i++;
  for (power = 1.0; isdigit(s[i]); i++) {
    val = val * 10 + (s[i] - '0');
    power *= 10.0;
  }
  if (s[i] == 'e' || s[i] == 'E')
    i++;
  exp_sign = (s[i] == '-') ? -1 : 1;
  if (s[i] == '+' || s[i] == '-')
    i++;
  for (exp = 0; isdigit(s[i]); i++)
    exp = exp * 10 + (s[i] - '0');
  if (exp_sign > 0) {
    for (i = 0; i < exp; i++)
      val *= 10;
  } else {
    for (i = 0; i < exp; i++)
      val *= 0.1;
  }
  return sign * val / power;
}
```