user: 这段汇编代码用C语言表示是什么样的?

```asm
<transpose>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x20,%rsp
  mov    %edi,0xc(%rsp)
  mov    %rsi,0x10(%rsp)
  test   %edi,%edi
  jle    L26
  mov    %edi,%eax
  shl    $0x4,%edi
  mov    %rsi,%r10
  mov    %rdx,(%rsp)
  movslq %edi,%rsi
  movslq %eax,%rdi
  movq   $0x0,-0x10(%rsp)
  lea    (%rdi,%rdi,1),%rcx
  lea    0x0(,%rdi,4),%r11
  movl   $0x0,0x8(%rsp)
  lea    (%rcx,%rdi,1),%r9
  mov    %rcx,-0x8(%rsp)
  mov    %r9,%rbx
  mov    %r9,-0x18(%rsp)
  add    %rcx,%rbx
  mov    %r11,-0x20(%rsp)
  mov    %rbx,-0x28(%rsp)
  mov    %eax,%ebx
  lea    0x0(,%rax,4),%eax
  movslq %eax,%rdx
  add    %ebx,%eax
  mov    %r11,-0x68(%rsp)
  cltq
  add    %rcx,%rdx
  add    %rcx,%rax
  mov    %rdx,-0x30(%rsp)
  mov    %rax,-0x38(%rsp)
  lea    (%rbx,%rbx,2),%eax
  add    %eax,%eax
  cltq
  add    %rcx,%rax
  mov    %rax,-0x40(%rsp)
  lea    0x0(,%rbx,8),%eax
  mov    %eax,%edx
  sub    %ebx,%edx
  movslq %edx,%rdx
  add    %rcx,%rdx
  mov    %rdx,-0x48(%rsp)
  movslq %eax,%rdx
  add    %ebx,%eax
  cltq
  add    %rcx,%rdx
  add    %rcx,%rax
  mov    %rdx,-0x50(%rsp)
  mov    %rax,-0x58(%rsp)
  lea    0x0(,%rsi,4),%rax
  mov    %rax,0x18(%rsp)
  lea    -0x1(%rbx),%eax
  lea    0x4(%r10,%rax,4),%rax
  mov    %rax,-0x78(%rsp)
  lea    0x0(,%r9,4),%rax
  mov    %rax,-0x60(%rsp)
  nopl   0x0(%rax,%rax,1)
L11:
  mov    -0x10(%rsp),%rdx
  mov    -0x58(%rsp),%r8
  mov    0x10(%rsp),%rax
  mov    -0x8(%rsp),%r15
  sub    %rdx,%r8
  mov    -0x18(%rsp),%r14
  mov    -0x20(%rsp),%r13
  mov    -0x28(%rsp),%r12
  mov    -0x30(%rsp),%rbp
  mov    %r8,-0x70(%rsp)
  sub    %rdx,%r15
  mov    -0x38(%rsp),%rbx
  mov    -0x40(%rsp),%r11
  sub    %rdx,%r14
  sub    %rdx,%r13
  mov    -0x48(%rsp),%r10
  mov    -0x50(%rsp),%r9
  sub    %rdx,%r12
  sub    %rdx,%rbp
  lea    (%rax,%rdx,4),%rcx
  mov    (%rsp),%rax
  sub    %rdx,%rbx
  sub    %rdx,%r11
  sub    %rdx,%r10
  sub    %rdx,%r9
  nopw   0x0(%rax,%rax,1)
L0:
  mov    (%rcx),%edx
  mov    %edx,(%rax)
  mov    (%rcx,%rdi,4),%edx
  mov    %edx,0x4(%rax)
  mov    (%rcx,%rdi,8),%edx
  mov    %edx,0x8(%rax)
  mov    -0x60(%rsp),%rdx
  mov    (%rcx,%rdx,1),%edx
  mov    %edx,0xc(%rax)
  mov    (%rcx,%rsi,1),%edx
  mov    %edx,0x10(%rax)
  lea    (%rcx,%rsi,1),%rdx
  add    $0x4,%rcx
  mov    (%rdx,%rdi,4),%r8d
  mov    %r8d,0x14(%rax)
  mov    (%rdx,%r15,4),%r8d
  mov    %r8d,0x18(%rax)
  mov    (%rdx,%r14,4),%r8d
  mov    %r8d,0x1c(%rax)
  mov    (%rdx,%r13,4),%r8d
  mov    %r8d,0x20(%rax)
  mov    (%rdx,%r12,4),%r8d
  mov    %r8d,0x24(%rax)
  mov    (%rdx,%rbp,4),%r8d
  mov    %r8d,0x28(%rax)
  mov    (%rdx,%rbx,4),%r8d
  mov    %r8d,0x2c(%rax)
  mov    (%rdx,%r11,4),%r8d
  mov    %r8d,0x30(%rax)
  mov    (%rdx,%r10,4),%r8d
  mov    %r8d,0x34(%rax)
  mov    (%rdx,%r9,4),%r8d
  mov    %r8d,0x38(%rax)
  mov    -0x70(%rsp),%r8
  mov    (%rdx,%r8,4),%edx
  mov    %edx,0x3c(%rax)
  add    -0x68(%rsp),%rax
  cmp    %rcx,-0x78(%rsp)
  jne    L0
  addl   $0x10,0x8(%rsp)
  mov    0x18(%rsp),%rcx
  addq   $0x40,(%rsp)
  mov    0x8(%rsp),%eax
  add    %rsi,-0x8(%rsp)
  add    %rsi,-0x10(%rsp)
  add    %rsi,-0x18(%rsp)
  add    %rsi,-0x20(%rsp)
  add    %rsi,-0x28(%rsp)
  add    %rsi,-0x30(%rsp)
  add    %rsi,-0x38(%rsp)
  add    %rsi,-0x40(%rsp)
  add    %rsi,-0x48(%rsp)
  add    %rsi,-0x50(%rsp)
  add    %rsi,-0x58(%rsp)
  add    %rcx,-0x78(%rsp)
  cmp    %eax,0xc(%rsp)
  jg     L11
L26:
  add    $0x20,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void transpose(int dim, int *src, int *dst) {
  int i, j;
  register int di, dj;
  for (i = 0; i < dim; i += 16)
    for (j = 0; j < dim; j++) {
      di = j * dim + i;
      dj = i * dim + j;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di++] = src[dj];
      dj += dim;
      dst[di] = src[dj];
    }
}
```