user: 请将这段汇编代码片段转换成等效的C代码：

```asm
<prodVetorial>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x38(%rbp)
  movl   $0x1,-0x30(%rbp)
  lea    D65(%rip),%rax
  mov    %rax,%rdi
  call   <system@plt>
  jmp    L31
L16:
  cmpl   $0x0,-0x38(%rbp)
  jne    L100
  mov    -0x38(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%esi
  lea    D19(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x34(%rbp)
  jmp    L96
L107:
  mov    -0x34(%rbp),%eax
  mov    %eax,%edi
  call   <letraCoeficiente@plt>
  mov    %eax,%esi
  lea    D17(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    -0x20(%rbp),%rdx
  mov    -0x34(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    %rax,%rsi
  lea    D86(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  addl   $0x1,-0x34(%rbp)
L96:
  cmpl   $0x2,-0x34(%rbp)
  jle    L107
  jmp    L25
L100:
  mov    -0x38(%rbp),%eax
  add    $0x1,%eax
  mov    %eax,%esi
  lea    D56(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  movl   $0x0,-0x34(%rbp)
  jmp    L14
L99:
  mov    -0x34(%rbp),%eax
  mov    %eax,%edi
  call   <letraCoeficiente@plt>
  mov    %eax,%esi
  lea    D17(%rip),%rax
  mov    %rax,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    -0x2c(%rbp),%rdx
  mov    -0x34(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    %rax,%rsi
  lea    D86(%rip),%rax
  mov    %rax,%rdi
  call   <scanf@plt>
  addl   $0x1,-0x34(%rbp)
L14:
  cmpl   $0x2,-0x34(%rbp)
  jle    L99
  mov    -0x1c(%rbp),%edx
  mov    -0x24(%rbp),%eax
  imul   %edx,%eax
  mov    -0x18(%rbp),%ecx
  mov    -0x28(%rbp),%edx
  imul   %ecx,%edx
  sub    %edx,%eax
  mov    %eax,-0x14(%rbp)
  mov    -0x18(%rbp),%edx
  mov    -0x2c(%rbp),%eax
  imul   %edx,%eax
  mov    -0x20(%rbp),%ecx
  mov    -0x24(%rbp),%edx
  imul   %ecx,%edx
  sub    %edx,%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x20(%rbp),%edx
  mov    -0x28(%rbp),%eax
  imul   %edx,%eax
  mov    -0x1c(%rbp),%ecx
  mov    -0x2c(%rbp),%edx
  imul   %ecx,%edx
  sub    %edx,%eax
  mov    %eax,-0xc(%rbp)
L25:
  addl   $0x1,-0x38(%rbp)
  cmpl   $0x1,-0x38(%rbp)
  jg     L40
  lea    D65(%rip),%rax
  mov    %rax,%rdi
  call   <system@plt>
L31:
  cmpl   $0x0,-0x30(%rbp)
  jne    L16
  jmp    L13
L40:
  nop
L13:
  lea    D78(%rip),%rax
  mov    %rax,%rdi
  call   <puts@plt>
  lea    -0x14(%rbp),%rax
  mov    %rax,%rdi
  call   <mostrarResultado@plt>
  nop
  mov    -0x8(%rbp),%rax
  sub    %fs:0x28,%rax
  je     L35
  call   <__stack_chk_fail@plt>
L35:
  leave
  ret
```

tool_calls: name: retrieve_data
arguments: data_label: D65
type_guessed: string
name: retrieve_data
arguments: data_label: D19
type_guessed: string
name: retrieve_data
arguments: data_label: D17
type_guessed: string
name: retrieve_data
arguments: data_label: D86
type_guessed: string
name: retrieve_data
arguments: data_label: D56
type_guessed: string
name: retrieve_data
arguments: data_label: D78
type_guessed: string

tool: D65: cls

tool: D19: --vetor %d---


tool: D17: Informe o coeficiente de %c: 

tool: D86: %d

tool: D56: ---vetor %d---


tool: D78: ---Produto Vetorial---

assistant: ```c
void prodVetorial() {
  int i = 0, j, u[3];
  int v[3];
  int vetResult[3];
  int op = 1;
  system("cls");
  while (op) {
    if (i == 0) {
      printf("--vetor %d---\n", i + 1);
      for (j = 0; j < 3; j++) {
        printf("Informe o coeficiente de %c: ", letraCoeficiente(j));
        scanf("%d", &v[j]);
      }
    } else {
      printf("---vetor %d---\n", i + 1);
      for (j = 0; j < 3; j++) {
        printf("Informe o coeficiente de %c: ", letraCoeficiente(j));
        scanf("%d", &u[j]);
      }
      vetResult[0] = ((v[1] * u[2]) - (v[2] * u[1]));
      vetResult[1] = (((v[0] * u[2]) - (v[2] * u[0]))) * (-1);
      vetResult[2] = ((v[0] * u[1]) - (v[1] * u[0]));
    }
    i++;
    if (i > 1) {
      break;
    }
    system("cls");
  }
  printf("---Produto Vetorial---\n");
  mostrarResultado(vetResult);
}
```