user: 这段汇编代码用C语言表示是什么样的?

```asm
<main>:
  endbr64
  push   %r12
  add    $0xffffffffffffff80,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x78(%rsp)
  xor    %eax,%eax
  lea    0x38(%rsp),%rax
  lea    0x18(%rsp),%rcx
  mov    %rsp,%rdi
  lea    0x10(%rsp),%rdx
  lea    0x8(%rsp),%rsi
  push   %rax
  lea    0x38(%rsp),%rax
  push   %rax
  lea    0x38(%rsp),%r9
  lea    0x30(%rsp),%r8
  call   <params_exactN@plt>
  mov    $0x1,%eax
  lea    D100(%rip),%rdi
  movsd  0x18(%rsp),%xmm0
  divsd  D21(%rip),%xmm0
  call   <printf@plt>
  lea    0x50(%rsp),%rsi
  lea    D71(%rip),%rdi
  call   <scanf@plt>
  pop    %rdx
  pop    %rcx
  cmp    $0x1,%eax
  je     L54
  lea    D121(%rip),%rdi
  mov    $0x1,%r12d
  call   <puts@plt>
L7:
  mov    0x78(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L45
  sub    $0xffffffffffffff80,%rsp
  mov    %r12d,%eax
  pop    %r12
  ret
L54:
  movsd  D21(%rip),%xmm0
  mulsd  0x40(%rsp),%xmm0
  lea    0x60(%rsp),%rcx
  lea    0x58(%rsp),%rdx
  lea    0x50(%rsp),%rsi
  lea    0x48(%rsp),%rdi
  mov    %eax,%r12d
  lea    0x70(%rsp),%r9
  lea    0x68(%rsp),%r8
  movsd  %xmm0,0x40(%rsp)
  call   <exactN@plt>
  test   %eax,%eax
  jne    L67
  movsd  0x40(%rsp),%xmm0
  movsd  0x10(%rsp),%xmm1
  comisd %xmm1,%xmm0
  ja     L15
L48:
  lea    D35(%rip),%rdi
  xor    %r12d,%r12d
  call   <puts@plt>
  movsd  0x60(%rsp),%xmm3
  mov    $0x6,%eax
  movsd  D20(%rip),%xmm2
  movsd  0x70(%rsp),%xmm5
  movsd  0x68(%rsp),%xmm4
  lea    D73(%rip),%rdi
  mulsd  %xmm2,%xmm3
  movsd  0x50(%rsp),%xmm1
  movsd  0x48(%rsp),%xmm0
  mulsd  D91(%rip),%xmm3
  mulsd  0x58(%rsp),%xmm2
  call   <printf@plt>
  jmp    L7
L67:
  lea    D56(%rip),%rdi
  mov    $0x1,%eax
  movsd  0x8(%rsp),%xmm0
  divsd  D21(%rip),%xmm0
  call   <printf@plt>
  jmp    L7
L15:
  lea    D38(%rip),%rdi
  mov    $0x2,%eax
  divsd  D21(%rip),%xmm0
  divsd  D21(%rip),%xmm1
  call   <printf@plt>
  jmp    L48
L45:
  call   <__stack_chk_fail@plt>
```

tool_calls: name: unpack_data
arguments: tag: D100
data_type: string
name: unpack_data
arguments: tag: D21
data_type: f64
name: unpack_data
arguments: tag: D71
data_type: string
name: unpack_data
arguments: tag: D121
data_type: string
name: unpack_data
arguments: tag: D35
data_type: string
name: unpack_data
arguments: tag: D20
data_type: f64
name: unpack_data
arguments: tag: D73
data_type: string
name: unpack_data
arguments: tag: D91
data_type: f64
name: unpack_data
arguments: tag: D56
data_type: string
name: unpack_data
arguments: tag: D38
data_type: string

tool: D100: Enter  x  (in km; 0.0 <= x <= %5.1f):   

tool: D21: 1000

tool: D71: %lf

tool: D121: ... input error; exiting

tool: D35: Results from Test N:

tool: D20: 31556926

tool: D73:      H    = ice thickness        = %12.5f (m)
     h_x  = surface slope        = %12.5e
     u    = ice velocity         = %12.5f (m/year)
     M    = surface mass balance = %12.5f (cm/year)
     B    = ice hardness         = %12.5e (Pa s^(1/3))
     beta = ice hardness         = %12.5e (Pa s m-1)


tool: D91: 100

tool: D56: SIMPLEN ERROR:  x  out of allowed domain  0.0 <= x <= %5.1f km
   ... ending ...


tool: D38: WARNING:  x = %5.1f km is past the calving front at xc = %5.1f km


assistant: ```c
int main() {
  double H0, L0, xc, a, Hela, k, Hc, Tc, x, H, hx, u, M, B, beta;
  const double secpera = 31556926.0;
  int scanret, retvalN;
  params_exactN(&H0, &L0, &xc, &a, &Hela, &k, &Hc, &Tc);
  printf("Enter  x  (in km; 0.0 <= x <= %5.1f):   ", L0 / 1000.0);
  scanret = scanf("%lf", &x);
  if (scanret != 1) {
    printf("... input error; exiting\n");
    return 1;
  }
  x = x * 1000.0;
  retvalN = exactN(x, &H, &hx, &u, &M, &B, &beta);
  if (retvalN) {
    printf("SIMPLEN ERROR:  x  out of allowed domain  0.0 <= x <= %5.1f km\n"
           "   ... ending ...\n",
           L0 / 1000.0);
    return 1;
  }
  if (x > xc) {
    printf("WARNING:  x = %5.1f km is past the calving front at xc = %5.1f km\n", x / 1000.0, xc / 1000.0);
  }
  printf("Results from Test N:\n");
  printf("     H    = ice thickness        = %12.5f (m)\n"
         "     h_x  = surface slope        = %12.5e\n"
         "     u    = ice velocity         = %12.5f (m/year)\n"
         "     M    = surface mass balance = %12.5f (cm/year)\n"
         "     B    = ice hardness         = %12.5e (Pa s^(1/3))\n"
         "     beta = ice hardness         = %12.5e (Pa s m-1)\n",
         H, hx, u * secpera, M * secpera * 100.0, B, beta);
  return 0;
}
```