user: 请从给定的汇编指令推导出C源代码：

```asm
<main>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x8,%rsp
  mov    $0x0,%eax
  call   <fork@plt>
  test   %rax,%rax
  je     L8
  lea    D87(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
L40:
  mov    $0x0,%eax
  call   <calculator_operations@plt>
  lea    D5(%rip),%r12
  lea    D37(%rip),%rbp
  lea    D36(%rip),%rbx
  lea    D118(%rip),%r13
  jmp    L107
L8:
  lea    D23(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x1,%edi
  call   <sleep@plt>
  lea    D69(%rip),%rsi
  lea    D40(%rip),%rdi
  call   <execv@plt>
  jmp    L40
  mov    $0x0,%eax
  call   <addition@plt>
L107:
  mov    $0xa,%edi
  call   <putchar@plt>
  mov    %r12,%rsi
  mov    %rbp,%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  mov    $0x0,%eax
  call   <getch@plt>
  sub    $0x21,%eax
  cmp    $0x50,%al
  ja     L133
  movzbl %al,%eax
  movslq (%rbx,%rax,4),%rax
  add    %rbx,%rax
  notrack jmp *%rax
  mov    $0x0,%eax
  call   <subtraction@plt>
  jmp    L107
  mov    $0x0,%eax
  call   <multiplication@plt>
  jmp    L107
  mov    $0x0,%eax
  call   <division@plt>
  jmp    L107
  mov    $0x0,%eax
  call   <modulus@plt>
  jmp    L107
  mov    $0x0,%eax
  call   <factorial@plt>
  jmp    L107
  mov    $0x0,%eax
  call   <power@plt>
  jmp    L107
  mov    $0x0,%eax
  call   <calculator_operations@plt>
  jmp    L107
  mov    $0x0,%edi
  call   <exit@plt>
  jmp    L107
  mov    %r13,%rdi
  call   <system@plt>
  mov    $0x0,%eax
  call   <calculator_operations@plt>
  jmp    L107
L133:
  mov    %r13,%rdi
  call   <system@plt>
  lea    D98(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D13(%rip),%rdi
  call   <puts@plt>
  lea    D80(%rip),%rdi
  mov    $0x0,%eax
  call   <printf@plt>
  lea    D2(%rip),%rdi
  call   <puts@plt>
  mov    $0x0,%eax
  call   <calculator_operations@plt>
  jmp    L107
```

tool_calls: name: disassemble_data
arguments: data_tag: D87
datatype: string
name: disassemble_data
arguments: data_tag: D5
datatype: string
name: disassemble_data
arguments: data_tag: D37
datatype: string
name: disassemble_data
arguments: data_tag: D118
datatype: string
name: disassemble_data
arguments: data_tag: D23
datatype: string
name: disassemble_data
arguments: data_tag: D40
datatype: string
name: disassemble_data
arguments: data_tag: D98
datatype: string
name: disassemble_data
arguments: data_tag: D13
datatype: string
name: disassemble_data
arguments: data_tag: D80
datatype: string
name: disassemble_data
arguments: data_tag: D2
datatype: string

tool: D87: I'm the Father program.

tool: D5: Enter the calculator Operation you want to do:

tool: D37: %s : 

tool: D118: cls

tool: D23: I'm the Son program.

tool: D40: ./SimpleCalculator

tool: D98: 
**********You have entered unavailable option

tool: D13: ***********

tool: D80: 
*****Please Enter any one of below available 

tool: D2: options****

assistant: ```c
int main() {
  int X = 1;
  char Calc_oprn;
  int pid, status;
  if (fork()) {
    printf("I'm the Father program.");
  } else {
    printf("I'm the Son program.");
    sleep(1);
    static char *argv[] = {"SimpleCalculator", ".", NULL};
    execv("./SimpleCalculator", argv);
  }
  calculator_operations();
  while (X) {
    printf("\n");
    printf("%s : ", "Enter the calculator Operation you want to do:");
    Calc_oprn = getch();
    switch (Calc_oprn) {
    case '+':
      addition();
      break;
    case '-':
      subtraction();
      break;
    case '*':
      multiplication();
      break;
    case '/':
      division();
      break;
    case '?':
      modulus();
      break;
    case '!':
      factorial();
      break;
    case '^':
      power();
      break;
    case 'H':
    case 'h':
      calculator_operations();
      break;
    case 'Q':
    case 'q':
      exit(0);
      break;
    case 'c':
    case 'C':
      system("cls");
      calculator_operations();
      break;
    default:
      system("cls");
      printf("\n**********You have entered unavailable option");
      printf("***********\n");
      printf("\n*****Please Enter any one of below available ");
      printf("options****\n");
      calculator_operations();
    }
  }
}
```