user: 这段汇编代码用C语言表示是什么样的？

```asm
<rotate>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x40,%rsp
  mov    %rdi,-0x38(%rbp)
  mov    %fs:0x28,%rax
  mov    %rax,-0x8(%rbp)
  xor    %eax,%eax
  movl   $0x0,-0x1c(%rbp)
  movl   $0x3,-0x18(%rbp)
  movl   $0x2,-0x14(%rbp)
  movl   $0x0,-0x24(%rbp)
  movl   $0x0,-0x2c(%rbp)
  movl   $0x0,-0x10(%rbp)
  jmp    L32
L35:
  movl   $0x0,-0x20(%rbp)
  movl   $0x0,-0x28(%rbp)
  movl   $0x0,-0xc(%rbp)
  jmp    L5
L43:
  mov    -0x24(%rbp),%eax
  sub    -0x18(%rbp),%eax
  mov    %eax,-0x2c(%rbp)
  mov    -0x20(%rbp),%eax
  sub    -0x18(%rbp),%eax
  mov    %eax,-0x28(%rbp)
  mov    -0x2c(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x28(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  mov    (%rcx,%rax,4),%eax
  mov    %eax,-0x1c(%rbp)
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x28(%rbp),%eax
  mov    %eax,-0xc(%rbp)
  lea    -0x28(%rbp),%rdx
  lea    -0x2c(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <R90deg@plt>
  mov    -0x2c(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  mov    -0x28(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  mov    %eax,%r8d
  mov    -0x10(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0xc(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  mov    %eax,%edi
  movslq %r8d,%rax
  mov    (%rsi,%rax,4),%edx
  movslq %edi,%rax
  mov    %edx,(%rcx,%rax,4)
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x28(%rbp),%eax
  mov    %eax,-0xc(%rbp)
  lea    -0x28(%rbp),%rdx
  lea    -0x2c(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <R90deg@plt>
  mov    -0x2c(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  mov    -0x28(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  mov    %eax,%r8d
  mov    -0x10(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0xc(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  mov    %eax,%edi
  movslq %r8d,%rax
  mov    (%rsi,%rax,4),%edx
  movslq %edi,%rax
  mov    %edx,(%rcx,%rax,4)
  mov    -0x2c(%rbp),%eax
  mov    %eax,-0x10(%rbp)
  mov    -0x28(%rbp),%eax
  mov    %eax,-0xc(%rbp)
  lea    -0x28(%rbp),%rdx
  lea    -0x2c(%rbp),%rax
  mov    %rdx,%rsi
  mov    %rax,%rdi
  call   <R90deg@plt>
  mov    -0x2c(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  mov    -0x28(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  mov    %eax,%r8d
  mov    -0x10(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0xc(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  mov    %eax,%edi
  movslq %r8d,%rax
  mov    (%rsi,%rax,4),%edx
  movslq %edi,%rax
  mov    %edx,(%rcx,%rax,4)
  mov    -0x2c(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  shl    $0x4,%rax
  mov    %rax,%rdx
  mov    -0x38(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  mov    -0x28(%rbp),%edx
  mov    -0x18(%rbp),%eax
  add    %edx,%eax
  cltd
  idivl  -0x14(%rbp)
  cltq
  mov    -0x1c(%rbp),%edx
  mov    %edx,(%rcx,%rax,4)
  mov    -0x14(%rbp),%eax
  add    %eax,-0x20(%rbp)
L5:
  mov    -0x14(%rbp),%eax
  add    %eax,%eax
  cmp    %eax,-0x20(%rbp)
  jl     L43
  mov    -0x14(%rbp),%eax
  add    %eax,-0x24(%rbp)
L32:
  mov    -0x14(%rbp),%eax
  add    %eax,%eax
  cmp    %eax,-0x24(%rbp)
  jl     L35
  mov    $0x0,%eax
  mov    -0x8(%rbp),%rdx
  sub    %fs:0x28,%rdx
  je     L23
  call   <__stack_chk_fail@plt>
L23:
  leave
  ret
```

assistant: ```c
int rotate(int field[][4]) {
  int tmp = 0, offset = (4 * 2 - 1) / 2, step = 2;
  for (int i = 0, x = 0, ox = 0; i < step * 4 / 2; i += step) {
    for (int j = 0, y = 0, oy = 0; j < step * 4 / 2; j += step) {
      x = i - offset, y = j - offset;
      tmp = field[(x + offset) / step][(y + offset) / step];
      ox = x, oy = y;
      R90deg(&x, &y);
      field[(ox + offset) / step][(oy + offset) / step] = field[(x + offset) / step][(y + offset) / step];
      ox = x, oy = y;
      R90deg(&x, &y);
      field[(ox + offset) / step][(oy + offset) / step] = field[(x + offset) / step][(y + offset) / step];
      ox = x, oy = y;
      R90deg(&x, &y);
      field[(ox + offset) / step][(oy + offset) / step] = field[(x + offset) / step][(y + offset) / step];
      field[(x + offset) / step][(y + offset) / step] = tmp;
    }
  }
  return 0;
}
```