user: 这段汇编代码用C语言表示是什么样的：

```asm
<merge>:
  endbr64
  mov    %rdx,%r8
  push   %r15
  sub    %rsi,%r8
  push   %r14
  mov    %rcx,%r14
  push   %r13
  lea    0x1(%r8),%rcx
  sub    %rdx,%r14
  push   %r12
  lea    0x0(,%r14,8),%r15
  push   %rbp
  mov    %rdi,%rbp
  push   %rbx
  mov    %rsi,%rbx
  lea    0x0(,%rcx,8),%rsi
  mov    %rsi,%rdi
  sub    $0x28,%rsp
  mov    %r8,0x18(%rsp)
  mov    %rcx,0x8(%rsp)
  mov    %rsi,(%rsp)
  mov    %rdx,0x10(%rsp)
  call   <malloc@plt>
  mov    %r15,%rdi
  mov    %rax,%r12
  call   <malloc@plt>
  mov    0x8(%rsp),%rcx
  mov    (%rsp),%rsi
  mov    0x10(%rsp),%r9
  mov    0x18(%rsp),%r8
  mov    %rax,%r13
  test   %rcx,%rcx
  je     L137
  lea    0x8(,%rbx,8),%rdi
  lea    0x0(%rbp,%rdi,1),%rax
  cmp    %rax,%r12
  je     L307
  cmp    $0x2,%r8
  jbe    L307
  mov    %rcx,%rdx
  mov    %rbp,%r10
  mov    %r12,%rax
  shr    %rdx
  sub    %r12,%r10
  shl    $0x4,%rdx
  lea    -0x8(%r10,%rdi,1),%rdi
  add    %r12,%rdx
  nopl   0x0(%rax)
L368:
  movdqu (%rax,%rdi,1),%xmm0
  add    $0x10,%rax
  movups %xmm0,-0x10(%rax)
  cmp    %rax,%rdx
  jne    L368
  mov    %rcx,%rax
  and    $0xfffffffffffffffe,%rax
  test   $0x1,%cl
  je     L137
  lea    (%rbx,%rax,1),%rdx
  mov    0x0(%rbp,%rdx,8),%rdx
  mov    %rdx,(%r12,%rax,8)
L137:
  xor    %eax,%eax
  xor    %edx,%edx
  test   %r14,%r14
  je     L328
  lea    -0x1(%r14),%rax
  lea    0x1(%r9),%rdx
  lea    0x10(,%r9,8),%r9
  cmp    $0x2,%rax
  jbe    L193
  lea    0x0(%rbp,%r9,1),%rax
  cmp    %rax,%r13
  je     L193
  mov    %r14,%rdi
  mov    %rbp,%r10
  mov    %r13,%rax
  shr    %rdi
  sub    %r13,%r10
  shl    $0x4,%rdi
  lea    -0x8(%r10,%r9,1),%r9
  add    %r13,%rdi
  nopl   0x0(%rax,%rax,1)
L150:
  movdqu (%rax,%r9,1),%xmm1
  add    $0x10,%rax
  movups %xmm1,-0x10(%rax)
  cmp    %rax,%rdi
  jne    L150
  mov    %r14,%rdi
  and    $0xfffffffffffffffe,%rdi
  test   $0x1,%r14b
  je     L106
  lea    (%rdx,%rdi,1),%rax
  mov    0x0(%rbp,%rax,8),%rax
  mov    %rax,0x0(%r13,%rdi,8)
L106:
  xor    %eax,%eax
  test   %rcx,%rcx
  je     L143
  xor    %edx,%edx
  nop
L36:
  mov    (%r12,%rdx,8),%r9
  mov    0x0(%r13,%rax,8),%rdi
  cmp    %r9,%rdi
  jb     L224
  mov    %r9,0x0(%rbp,%rbx,8)
  add    $0x1,%rdx
  add    $0x1,%rbx
  cmp    %rax,%r14
  jbe    L328
  cmp    %rdx,%rcx
  ja     L36
  nopl   (%rax)
L363:
  cmp    %rax,%r14
  jbe    L111
L143:
  lea    0x0(,%rax,8),%r8
  lea    0x0(,%rbx,8),%rdi
  sub    %rax,%r14
  lea    0x0(%r13,%r8,1),%rdx
  lea    0x0(%rbp,%rdi,1),%rsi
  lea    0x8(%rdx),%rcx
  cmp    %rcx,%rsi
  je     L341
  lea    -0x1(%r14),%r9
  cmp    $0x2,%r9
  jbe    L341
  mov    %r14,%rcx
  sub    %rdx,%rsi
  shr    %rcx
  shl    $0x4,%rcx
  add    %rdx,%rcx
  nopl   (%rax)
L38:
  movdqu (%rdx),%xmm3
  movups %xmm3,(%rsi,%rdx,1)
  add    $0x10,%rdx
  cmp    %rdx,%rcx
  jne    L38
  mov    %r14,%rdx
  and    $0xfffffffffffffffe,%rdx
  add    %rdx,%rax
  add    %rdx,%rbx
  cmp    %r14,%rdx
  je     L111
  mov    0x0(%r13,%rax,8),%rax
  mov    %rax,0x0(%rbp,%rbx,8)
L111:
  mov    %r12,%rdi
  call   <free@plt>
  add    $0x28,%rsp
  mov    %r13,%rdi
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1060 <free@plt>
  nopl   0x0(%rax,%rax,1)
L224:
  mov    %rdi,0x0(%rbp,%rbx,8)
  add    $0x1,%rax
  add    $0x1,%rbx
  cmp    %rdx,%rcx
  jbe    L363
  cmp    %rax,%r14
  ja     L36
L328:
  cmp    %rdx,%rcx
  jbe    L363
  lea    0x0(,%rdx,8),%r11
  lea    0x0(,%rbx,8),%r10
  sub    %rdx,%r8
  lea    (%r11,%r12,1),%rcx
  lea    0x0(%rbp,%r10,1),%r9
  lea    0x8(%rcx),%rdi
  cmp    %rdi,%r9
  je     L297
  cmp    $0x2,%r8
  jbe    L297
  lea    0x1(%r8),%rdi
  sub    %rcx,%r9
  mov    %rdi,%rsi
  shr    %rsi
  shl    $0x4,%rsi
  add    %rcx,%rsi
  nop
L35:
  movdqu (%rcx),%xmm2
  movups %xmm2,(%r9,%rcx,1)
  add    $0x10,%rcx
  cmp    %rsi,%rcx
  jne    L35
  mov    %rdi,%rsi
  and    $0xfffffffffffffffe,%rsi
  add    %rsi,%rdx
  lea    (%rbx,%rsi,1),%rcx
  cmp    %rsi,%rdi
  je     L23
  mov    (%r12,%rdx,8),%rdx
  mov    %rdx,0x0(%rbp,%rcx,8)
L23:
  lea    0x1(%r8,%rbx,1),%rbx
  jmp    L363
  nopl   0x0(%rax,%rax,1)
L307:
  mov    %rbp,%rdx
  mov    %r12,%rax
  lea    (%rsi,%r12,1),%r10
  sub    %r12,%rdx
  lea    -0x8(%rdx,%rdi,1),%rdi
  nopw   0x0(%rax,%rax,1)
L176:
  mov    (%rdi,%rax,1),%rdx
  add    $0x8,%rax
  mov    %rdx,-0x8(%rax)
  cmp    %r10,%rax
  jne    L176
  jmp    L137
  xchg   %ax,%ax
L193:
  mov    %rbp,%rdx
  mov    %r13,%rax
  lea    (%r15,%r13,1),%r10
  sub    %r13,%rdx
  lea    -0x10(%rdx,%r9,1),%rdi
  nopw   0x0(%rax,%rax,1)
L276:
  mov    0x8(%rdi,%rax,1),%rdx
  add    $0x8,%rax
  mov    %rdx,-0x8(%rax)
  cmp    %r10,%rax
  jne    L276
  jmp    L106
  nop
L341:
  sub    %r8,%rdi
  add    %r13,%r15
  sub    %r13,%rdi
  add    %rdi,%rbp
  jmp    L144
  xchg   %ax,%ax
L316:
  add    $0x8,%rcx
L144:
  mov    (%rdx),%rax
  mov    %rax,0x0(%rbp,%rdx,1)
  mov    %rcx,%rdx
  cmp    %rcx,%r15
  jne    L316
  jmp    L111
  nopl   0x0(%rax)
L297:
  sub    %r11,%r10
  add    %r12,%rsi
  sub    %r12,%r10
  lea    0x0(%rbp,%r10,1),%rdx
  jmp    L51
L318:
  add    $0x8,%rdi
L51:
  mov    (%rcx),%r9
  mov    %r9,(%rdx,%rcx,1)
  mov    %rdi,%rcx
  cmp    %rdi,%rsi
  jne    L318
  jmp    L23
```

assistant: ```c
void merge(long long unsigned *arr, long long unsigned l, long long unsigned m, long long unsigned r) {
  long long unsigned i, j, k;
  long long unsigned n1 = m - l + 1;
  long long unsigned n2 = r - m;
  long long unsigned *L = (long long unsigned *)malloc(n1 * sizeof(long long unsigned));
  long long unsigned *R = (long long unsigned *)malloc(n2 * sizeof(long long unsigned));
  for (i = 0; i < n1; i++)
    L[i] = arr[l + i];
  for (j = 0; j < n2; j++)
    R[j] = arr[m + 1 + j];
  i = 0;
  j = 0;
  k = l;
  while (i < n1 && j < n2) {
    if (L[i] <= R[j]) {
      arr[k] = L[i];
      i++;
    } else {
      arr[k] = R[j];
      j++;
    }
    k++;
  }
  while (i < n1) {
    arr[k] = L[i];
    i++;
    k++;
  }
  while (j < n2) {
    arr[k] = R[j];
    j++;
    k++;
  }
  free(L);
  free(R);
}
```