user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<tksl>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %rdi,-0x18(%rbp)
  mov    %rsi,-0x20(%rbp)
  mov    %edx,-0x24(%rbp)
  mov    %ecx,-0x28(%rbp)
  mov    %r8d,-0x2c(%rbp)
  mov    %r9d,-0x30(%rbp)
  mov    -0x28(%rbp),%eax
  cmp    -0x24(%rbp),%eax
  jne    L53
  mov    -0x2c(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  je     L53
  mov    -0x30(%rbp),%edx
  mov    -0x2c(%rbp),%esi
  mov    -0x20(%rbp),%rax
  mov    0x10(%rbp),%ecx
  mov    %rax,%rdi
  call   <ksel@plt>
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  jmp    L86
L53:
  mov    -0x30(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jne    L21
  mov    -0x24(%rbp),%eax
  cmp    -0x28(%rbp),%eax
  je     L21
  mov    -0x28(%rbp),%edx
  mov    -0x24(%rbp),%esi
  mov    -0x18(%rbp),%rax
  mov    0x10(%rbp),%ecx
  mov    %rax,%rdi
  call   <ksel@plt>
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  jmp    L86
L21:
  cmpl   $0x1,0x10(%rbp)
  jg     L40
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x20(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jle    L48
  mov    -0x2c(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  jmp    L86
L48:
  mov    -0x24(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  jmp    L86
L40:
  mov    0x10(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,%ecx
  mov    -0x28(%rbp),%edx
  mov    -0x24(%rbp),%esi
  mov    -0x18(%rbp),%rax
  mov    %rax,%rdi
  call   <ksel@plt>
  mov    %eax,-0x8(%rbp)
  mov    0x10(%rbp),%eax
  mov    %eax,%edx
  shr    $0x1f,%edx
  add    %edx,%eax
  sar    %eax
  mov    %eax,%ecx
  mov    -0x30(%rbp),%edx
  mov    -0x2c(%rbp),%esi
  mov    -0x20(%rbp),%rax
  mov    %rax,%rdi
  call   <ksel@plt>
  mov    %eax,-0x4(%rbp)
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x20(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jle    L71
  mov    0x10(%rbp),%eax
  sub    -0x4(%rbp),%eax
  mov    %eax,%ecx
  mov    -0x2c(%rbp),%edx
  mov    -0x4(%rbp),%eax
  add    %edx,%eax
  lea    0x1(%rax),%r9d
  mov    -0x24(%rbp),%edx
  mov    -0x8(%rbp),%eax
  lea    (%rdx,%rax,1),%edi
  mov    -0x2c(%rbp),%r8d
  mov    -0x28(%rbp),%edx
  mov    -0x20(%rbp),%rsi
  mov    -0x18(%rbp),%rax
  sub    $0x8,%rsp
  push   %rcx
  mov    %edx,%ecx
  mov    %edi,%edx
  mov    %rax,%rdi
  call   <tksl>
  add    $0x10,%rsp
  jmp    L86
L71:
  mov    -0x8(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rdx
  mov    -0x18(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%edx
  mov    -0x4(%rbp),%eax
  cltq
  lea    0x0(,%rax,4),%rcx
  mov    -0x20(%rbp),%rax
  add    %rcx,%rax
  mov    (%rax),%eax
  cmp    %eax,%edx
  jge    L86
  mov    0x10(%rbp),%eax
  sub    -0x8(%rbp),%eax
  mov    %eax,%edi
  mov    -0x2c(%rbp),%edx
  mov    -0x4(%rbp),%eax
  lea    (%rdx,%rax,1),%r10d
  mov    -0x24(%rbp),%edx
  mov    -0x8(%rbp),%eax
  add    %edx,%eax
  lea    0x1(%rax),%ecx
  mov    -0x30(%rbp),%r8d
  mov    -0x24(%rbp),%edx
  mov    -0x20(%rbp),%rsi
  mov    -0x18(%rbp),%rax
  sub    $0x8,%rsp
  push   %rdi
  mov    %r8d,%r9d
  mov    %r10d,%r8d
  mov    %rax,%rdi
  call   <tksl>
  add    $0x10,%rsp
  jmp    L86
L86:
  leave
  ret
```

assistant: ```c
int tksl(int a[], int b[], int al, int au, int bl, int bu, int k) {
  if (au == al && bl != bu)
    return (b[ksel(b, bl, bu, k)]);
  if (bu == bl && al != au)
    return (a[ksel(a, al, au, k)]);
  if (k < 2) {
    if (a[al] > b[bl])
      return (b[bl]);
    else
      return (a[al]);
  }
  int k1 = ksel(a, al, au, k / 2);
  int k2 = ksel(b, bl, bu, k / 2);
  if (a[k1] > b[k2])
    return (tksl(a, b, al + k1, au, bl, bl + k2 + 1, k - k2));
  else if (a[k1] < b[k2])
    return (tksl(a, b, al, al + k1 + 1, bl + k2, bu, k - k1));
}
```