user: 这段汇编代码用C语言表示是什么样的？

```asm
<merge>:
  endbr64
  push   %r14
  mov    %ecx,%eax
  push   %r13
  sub    %esi,%eax
  mov    %esi,%r13d
  push   %r12
  mov    %edx,%r12d
  push   %rbp
  mov    %ecx,%ebp
  push   %rbx
  mov    %rdi,%rbx
  lea    0x4(,%rax,4),%edi
  call   <malloc@plt>
  mov    %rax,%r9
  lea    0x1(%r12),%eax
  cmp    %eax,%ebp
  jl     L166
  cmp    %r12d,%r13d
  jg     L289
  mov    %r9,%rcx
  mov    %r13d,%esi
  xor    %edx,%edx
  movslq %r13d,%r11
  nopl   0x0(%rax,%rax,1)
L176:
  movslq %eax,%r10
  mov    (%rbx,%r11,4),%r8d
  mov    (%rbx,%r10,4),%edi
  cmp    %r8d,%edi
  jl     L284
L165:
  mov    %r8d,(%rcx)
  add    $0x1,%esi
  add    $0x1,%edx
  add    $0x4,%rcx
  cmp    %eax,%ebp
  jl     L41
  cmp    %esi,%r12d
  jl     L305
  movslq %esi,%r11
  mov    (%rbx,%r10,4),%edi
  mov    (%rbx,%r11,4),%r8d
  cmp    %r8d,%edi
  jge    L165
L284:
  add    $0x1,%eax
  mov    %edi,(%rcx)
  add    $0x1,%edx
  add    $0x4,%rcx
  cmp    %eax,%ebp
  jl     L41
  cmp    %esi,%r12d
  jge    L176
L305:
  cmp    %eax,%ebp
  jl     L41
L208:
  mov    %ebp,%r10d
  movslq %edx,%rcx
  movslq %eax,%r8
  sub    %eax,%r10d
  lea    (%r9,%rcx,4),%rdi
  lea    0x1(%r8),%rsi
  cmp    %ebp,%eax
  setle  %r14b
  cmp    $0x2,%r10d
  mov    %rdi,%rcx
  seta   %r12b
  lea    0x0(,%rsi,4),%r11
  test   %r12b,%r14b
  je     L358
  lea    (%rbx,%r11,1),%r14
  mov    %rdi,%r12
  sub    %r14,%r12
  cmp    $0x8,%r12
  jbe    L358
  cmp    %ebp,%eax
  mov    $0x1,%esi
  lea    0x1(%r10),%r8d
  cmovg  %esi,%r8d
  mov    %r8d,%esi
  shr    $0x2,%esi
  sub    $0x1,%esi
  shl    $0x4,%rsi
  lea    0x10(%rdi,%rsi,1),%rdi
  mov    %rbx,%rsi
  sub    %rcx,%rsi
  lea    -0x4(%rsi,%r11,1),%rsi
  nopl   0x0(%rax)
L137:
  movdqu (%rcx,%rsi,1),%xmm1
  add    $0x10,%rcx
  movups %xmm1,-0x10(%rcx)
  cmp    %rdi,%rcx
  jne    L137
  mov    %r8d,%edi
  and    $0xfffffffc,%edi
  lea    (%rdx,%rdi,1),%ecx
  lea    (%rax,%rdi,1),%esi
  cmp    %edi,%r8d
  je     L260
  movslq %esi,%rdi
  mov    (%rbx,%rdi,4),%r8d
  movslq %ecx,%rdi
  add    $0x1,%ecx
  mov    %r8d,(%r9,%rdi,4)
  lea    0x1(%rsi),%edi
  cmp    %ebp,%edi
  jg     L260
  movslq %edi,%rdi
  movslq %ecx,%rcx
  add    $0x2,%esi
  lea    0x0(,%rdi,4),%r11
  mov    (%rbx,%rdi,4),%edi
  lea    0x0(,%rcx,4),%r8
  mov    %edi,(%r9,%rcx,4)
  cmp    %esi,%ebp
  jl     L260
  mov    0x4(%rbx,%r11,1),%ecx
  mov    %ecx,0x4(%r9,%r8,1)
L260:
  cmp    %ebp,%eax
  mov    $0x0,%eax
  cmovle %r10d,%eax
  lea    0x1(%rdx,%rax,1),%edx
L22:
  movslq %r13d,%rsi
  lea    0x4(%r9),%r8
  lea    -0x1(%rdx),%edi
  mov    %r9,%rax
  shl    $0x2,%rsi
  lea    (%rbx,%rsi,1),%rcx
  mov    %rcx,%r10
  sub    %r8,%r10
  cmp    $0x8,%r10
  jbe    L363
  cmp    $0x2,%edi
  jbe    L363
  mov    %edx,%eax
  sub    %r9,%rcx
  shr    $0x2,%eax
  sub    $0x1,%eax
  shl    $0x4,%rax
  lea    0x10(%r9,%rax,1),%rsi
  mov    %r9,%rax
  nopl   (%rax)
L172:
  movdqu (%rax),%xmm0
  movups %xmm0,(%rcx,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rsi
  jne    L172
  mov    %edx,%eax
  and    $0xfffffffc,%eax
  test   $0x3,%dl
  je     L194
  mov    %eax,%ecx
  mov    (%r9,%rcx,4),%edi
  lea    0x0(,%rcx,4),%rsi
  lea    (%rax,%r13,1),%ecx
  movslq %ecx,%rcx
  mov    %edi,(%rbx,%rcx,4)
  lea    0x1(%rax),%ecx
  cmp    %ecx,%edx
  jle    L194
  mov    0x4(%r9,%rsi,1),%edi
  add    %r13d,%ecx
  add    $0x2,%eax
  movslq %ecx,%rcx
  mov    %edi,(%rbx,%rcx,4)
  cmp    %eax,%edx
  jle    L194
  mov    0x8(%r9,%rsi,1),%edx
  add    %eax,%r13d
  movslq %r13d,%r13
  mov    %edx,(%rbx,%r13,4)
L194:
  pop    %rbx
  mov    %r9,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    1060 <free@plt>
  cs nopw 0x0(%rax,%rax,1)
L330:
  add    $0x1,%rsi
L358:
  mov    (%rbx,%r8,4),%ecx
  add    $0x4,%rdi
  mov    %rsi,%r8
  mov    %ecx,-0x4(%rdi)
  cmp    %esi,%ebp
  jge    L330
  jmp    L260
  nopl   0x0(%rax,%rax,1)
L41:
  cmp    %esi,%r12d
  jl     L22
L170:
  mov    %r12d,%r8d
  movslq %edx,%rax
  movslq %esi,%r10
  sub    %esi,%r8d
  lea    (%r9,%rax,4),%rdi
  lea    0x1(%r10),%rcx
  cmp    %esi,%r12d
  setge  %r14b
  cmp    $0x2,%r8d
  mov    %rdi,%rax
  seta   %bpl
  lea    0x0(,%rcx,4),%r11
  test   %bpl,%r14b
  je     L368
  lea    (%rbx,%r11,1),%r14
  mov    %rdi,%rbp
  sub    %r14,%rbp
  cmp    $0x8,%rbp
  jbe    L368
  cmp    %esi,%r12d
  mov    $0x1,%ecx
  lea    0x1(%r8),%r10d
  cmovl  %ecx,%r10d
  mov    %r10d,%ecx
  shr    $0x2,%ecx
  sub    $0x1,%ecx
  shl    $0x4,%rcx
  lea    0x10(%rdi,%rcx,1),%rdi
  mov    %rbx,%rcx
  sub    %rax,%rcx
  lea    -0x4(%rcx,%r11,1),%rcx
  nopl   0x0(%rax)
L259:
  movdqu (%rax,%rcx,1),%xmm2
  add    $0x10,%rax
  movups %xmm2,-0x10(%rax)
  cmp    %rax,%rdi
  jne    L259
  mov    %r10d,%edi
  and    $0xfffffffc,%edi
  lea    (%rdx,%rdi,1),%eax
  lea    (%rsi,%rdi,1),%ecx
  cmp    %edi,%r10d
  je     L174
  movslq %ecx,%rdi
  mov    (%rbx,%rdi,4),%r10d
  movslq %eax,%rdi
  add    $0x1,%eax
  mov    %r10d,(%r9,%rdi,4)
  lea    0x1(%rcx),%edi
  cmp    %edi,%r12d
  jl     L174
  movslq %edi,%rdi
  cltq
  add    $0x2,%ecx
  lea    0x0(,%rdi,4),%r11
  mov    (%rbx,%rdi,4),%edi
  lea    0x0(,%rax,4),%r10
  mov    %edi,(%r9,%rax,4)
  cmp    %r12d,%ecx
  jg     L174
  mov    0x4(%rbx,%r11,1),%eax
  mov    %eax,0x4(%r9,%r10,1)
L174:
  xor    %eax,%eax
  cmp    %esi,%r12d
  cmovl  %eax,%r8d
  lea    0x1(%rdx,%r8,1),%edx
  jmp    L22
  nopl   (%rax)
L173:
  add    $0x1,%rcx
L368:
  mov    (%rbx,%r10,4),%eax
  add    $0x4,%rdi
  mov    %rcx,%r10
  mov    %eax,-0x4(%rdi)
  cmp    %ecx,%r12d
  jge    L173
  jmp    L174
  nopl   0x0(%rax)
L363:
  sub    %r9,%rsi
  lea    (%r8,%rdi,4),%rcx
  add    %rsi,%rbx
  nopw   0x0(%rax,%rax,1)
L285:
  mov    (%rax),%edx
  mov    %edx,(%rbx,%rax,1)
  add    $0x4,%rax
  cmp    %rax,%rcx
  jne    L285
  pop    %rbx
  mov    %r9,%rdi
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  jmp    1060 <free@plt>
L289:
  xor    %edx,%edx
  cmp    %eax,%ebp
  jge    L208
L166:
  mov    %r13d,%esi
  xor    %edx,%edx
  cmp    %r12d,%r13d
  jle    L170
  jmp    L194
```

assistant: ```c
void merge(int a[], int left, int mid, int right) {
  int *temp = (int *)malloc((right - left + 1) * sizeof(int));
  int i = left;
  int j = mid + 1;
  int index = 0;
  while (i <= mid && j <= right) {
    if (a[i] <= a[j]) {
      temp[index] = a[i];
      i++;
    } else {
      temp[index] = a[j];
      j++;
    }
    index++;
  }
  if (j > right) {
    for (int k = i; k <= mid; k++) {
      temp[index] = a[k];
      index++;
    }
  } else {
    for (int k = j; k <= right; k++) {
      temp[index] = a[k];
      index++;
    }
  }
  for (int k = 0; k < index; k++) {
    a[left + k] = temp[k];
  }
  free(temp);
  return;
}
```