user: 这段汇编代码用C语言表示是什么样的：

```asm
<FormatCCF>:
  endbr64
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x1000,%rsp
  orq    $0x0,(%rsp)
  sub    $0x728,%rsp
  mov    %fs:0x28,%rax
  mov    %rax,0x2718(%rsp)
  xor    %eax,%eax
  movzbl (%rdi),%eax
  mov    %rdi,%rbp
  test   %al,%al
  je     L344
  movabs $0xf8000001fc00fffe,%rsi
  mov    %rdi,%rdx
  jmp    L288
  nopl   0x0(%rax)
L190:
  lea    -0x20(%rax),%ecx
  sub    $0x40,%eax
  mov    %cl,(%rdx)
L220:
  bt     %rax,%rsi
  jb     L80
  movzbl 0x1(%rdx),%eax
  add    $0x1,%rdx
  test   %al,%al
  je     L38
L288:
  lea    -0x61(%rax),%ecx
  cmp    $0x19,%cl
  jbe    L190
  mov    %eax,%ecx
  and    $0xfffffffd,%ecx
  cmp    $0x8,%cl
  je     L227
  cmp    $0xd,%al
  jne    L116
L227:
  movb   $0x20,(%rdx)
  movzbl 0x1(%rdx),%eax
  add    $0x1,%rdx
  test   %al,%al
  jne    L288
L38:
  movzbl 0x0(%rbp),%esi
  xor    %ecx,%ecx
  test   %sil,%sil
  je     L344
  cs nopw 0x0(%rax,%rax,1)
L212:
  cmp    $0x20,%sil
  jne    L60
  movslq %ecx,%rax
  lea    0x1(%rcx),%edi
  lea    0x1(%rbp,%rax,1),%rdx
  sub    %edx,%edi
  nopw   0x0(%rax,%rax,1)
L314:
  lea    (%rdi,%rdx,1),%ecx
  mov    %rdx,%rax
  movzbl (%rdx),%esi
  lea    0x1(%rdx),%rdx
  cmp    $0x20,%sil
  je     L314
  test   %sil,%sil
  jne    L60
L329:
  movzbl (%rax),%esi
  cmp    $0x20,%sil
  jne    L35
  movslq %ecx,%rax
  lea    0x1(%rcx),%edi
  lea    0x1(%rbp,%rax,1),%rdx
  sub    %edx,%edi
  nopw   0x0(%rax,%rax,1)
L26:
  lea    (%rdi,%rdx,1),%ecx
  mov    %rdx,%rax
  movzbl (%rdx),%esi
  add    $0x1,%rdx
  cmp    $0x20,%sil
  je     L26
L35:
  lea    0x1(%rbx),%edi
  test   %sil,%sil
  je     L18
  lea    0x1(%rcx),%edx
  movslq %ebx,%rbx
  movslq %edx,%rax
  mov    %sil,(%rsp,%rbx,1)
  add    %rbp,%rax
  movzbl (%rax),%esi
  cmp    $0x20,%sil
  jne    L132
  lea    0x2(%rcx),%edx
  movslq %edx,%rdx
  nopw   0x0(%rax,%rax,1)
L76:
  mov    %edx,%ecx
  lea    0x0(%rbp,%rdx,1),%rax
  add    $0x1,%rdx
  movzbl -0x1(%rbp,%rdx,1),%esi
  cmp    $0x20,%sil
  je     L76
L271:
  test   %sil,%sil
  je     L349
  movslq %edi,%rax
  add    $0x1,%ecx
  lea    0x2(%rdi),%ebx
  add    $0x1,%edi
  mov    %sil,(%rsp,%rax,1)
  movslq %ecx,%rax
  movslq %edi,%rdi
  movzbl 0x0(%rbp,%rax,1),%esi
  movb   $0x20,(%rsp,%rdi,1)
  test   %sil,%sil
  jne    L212
L344:
  mov    %rsp,%r13
  movslq %ebx,%rax
  mov    %r13,%rdi
  movb   $0x0,(%rsp,%rax,1)
  call   <strlen@plt>
  cmp    $0x17,%eax
  jle    L191
  mov    %r13,%rdi
  call   <strlen@plt>
  movslq %eax,%r12
  cltd
  imul   $0x66666667,%r12,%r12
  sar    $0x21,%r12
  sub    %edx,%r12d
  lea    (%r12,%r12,4),%edx
  sub    %edx,%eax
  mov    %eax,%r12d
  jne    L191
  mov    %r13,%rdi
  call   <strlen@plt>
  cmp    $0x1414,%eax
  jg     L191
  lea    -0x1(%rbx),%eax
  mov    %r13,%rsi
  mov    %rbp,%rdi
  cltq
  movb   $0x0,(%rsp,%rax,1)
  call   <strcpy@plt>
  jmp    L34
  nopl   0x0(%rax)
L116:
  sub    $0x20,%eax
  cmp    $0x3a,%al
  jbe    L220
L80:
  mov    $0x2d,%r12d
L34:
  mov    0x2718(%rsp),%rax
  sub    %fs:0x28,%rax
  jne    L279
  add    $0x2728,%rsp
  mov    %r12d,%eax
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  ret
  nopl   0x0(%rax)
L191:
  mov    $0x2b,%r12d
  jmp    L34
  nopl   0x0(%rax,%rax,1)
L60:
  lea    0x1(%rcx),%edi
  movslq %ebx,%rax
  lea    0x1(%rbx),%r8d
  movslq %edi,%rdx
  mov    %sil,(%rsp,%rax,1)
  lea    0x0(%rbp,%rdx,1),%rax
  movzbl (%rax),%esi
  cmp    $0x20,%sil
  jne    L120
  lea    0x1(%rbp,%rdx,1),%rdx
  add    $0x2,%ecx
  sub    %edx,%ecx
  nopl   0x0(%rax)
L29:
  lea    (%rcx,%rdx,1),%edi
  mov    %rdx,%rax
  movzbl (%rdx),%esi
  add    $0x1,%rdx
  cmp    $0x20,%sil
  je     L29
L120:
  test   %sil,%sil
  je     L188
  lea    0x1(%rdi),%ecx
  movslq %r8d,%r8
  add    $0x2,%ebx
  movslq %ecx,%rax
  mov    %sil,(%rsp,%r8,1)
  add    %rbp,%rax
  jmp    L329
L349:
  lea    0x1(%rdi),%ebx
  movslq %edi,%rdi
  movb   $0x20,(%rsp,%rdi,1)
  movzbl (%rax),%esi
  test   %sil,%sil
  jne    L212
  jmp    L344
  nopl   0x0(%rax,%rax,1)
L188:
  mov    %edi,%ecx
  mov    %r8d,%ebx
  jmp    L329
  nopw   0x0(%rax,%rax,1)
L18:
  movzbl (%rax),%esi
  mov    %ebx,%edi
  jmp    L271
L132:
  mov    %edx,%ecx
  jmp    L271
L279:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
int FormatCCF(char *ccf) {
  char st[10000];
  int j, i;
  i = 0;
  while (ccf[i]) {
    if (ccf[i] >= 'a' && ccf[i] <= 'z')
      ccf[i] -= 'a' - 'A';
    if (ccf[i] == 13 || ccf[i] == 10 || ccf[i] == 8)
      ccf[i] = ' ';
    if ((ccf[i] < '0' || ccf[i] > '9') && (ccf[i] < 'A' || ccf[i] > 'Z') && ccf[i] != ' ') {
      return (45);
    }
    i++;
  }
  i = 0;
  while (ccf[i]) {
    while (ccf[i] == ' ')
      i++;
    if (ccf[i])
      st[j++] = ccf[i++];
    while (ccf[i] == ' ')
      i++;
    if (ccf[i])
      st[j++] = ccf[i++];
    while (ccf[i] == ' ')
      i++;
    if (ccf[i])
      st[j++] = ccf[i++];
    while (ccf[i] == ' ')
      i++;
    if (ccf[i])
      st[j++] = ccf[i++];
    st[j++] = ' ';
  }
  st[j] = 0;
  if (strlen(st) < 24 || (strlen(st) % 5) || strlen(st) > 5140)
    return (43);
  st[j - 1] = 0;
  strcpy(ccf, st);
  return (0);
}
```