user: 这段汇编代码用C语言表示是什么样的？

```asm
<merge>:
  endbr64
  mov    %esi,%eax
  push   %r15
  mov    %edx,%r11d
  mov    %ecx,%esi
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  cmp    %ecx,%eax
  jge    L273
  movslq %eax,%rdx
  mov    %ecx,%ebx
  lea    0x0(,%rdx,4),%rcx
  sub    %eax,%ebx
  lea    (%r8,%rcx,1),%r10
  lea    0x4(%rdi,%rcx,1),%rbp
  mov    %r10,%r9
  sub    %rbp,%r9
  cmp    $0x8,%r9
  jbe    L165
  lea    -0x1(%rbx),%r9d
  cmp    $0x2,%r9d
  jbe    L165
  mov    %ebx,%r9d
  add    %rdi,%rcx
  xor    %edx,%edx
  shr    $0x2,%r9d
  shl    $0x4,%r9
  nopl   0x0(%rax,%rax,1)
L2:
  movdqu (%rcx,%rdx,1),%xmm0
  movups %xmm0,(%r10,%rdx,1)
  add    $0x10,%rdx
  cmp    %r9,%rdx
  jne    L2
  mov    %ebx,%edx
  and    $0xfffffffc,%edx
  lea    (%rdx,%rax,1),%ecx
  cmp    %edx,%ebx
  je     L273
  movslq %ecx,%rdx
  mov    (%rdi,%rdx,4),%r9d
  mov    %r9d,(%r8,%rdx,4)
  lea    0x1(%rcx),%edx
  cmp    %esi,%edx
  jge    L273
  movslq %edx,%rdx
  add    $0x2,%ecx
  mov    (%rdi,%rdx,4),%r10d
  lea    0x0(,%rdx,4),%r9
  mov    %r10d,(%r8,%rdx,4)
  cmp    %ecx,%esi
  jle    L273
  mov    0x4(%rdi,%r9,1),%edx
  mov    %edx,0x4(%r8,%r9,1)
L273:
  cmp    %r11d,%esi
  jle    L12
  cmp    %r11d,%eax
  jge    L12
  lea    0x1(%rax),%edx
  mov    %r11d,%ecx
  movslq %eax,%r12
  movslq %r11d,%rbp
  movslq %edx,%rdx
  xchg   %ax,%ax
L26:
  mov    (%r8,%r12,4),%r10d
  mov    (%r8,%rbp,4),%r9d
  mov    %edx,%ebx
  cmp    %r10d,%r9d
  jle    L5
L366:
  mov    %r10d,-0x4(%rdi,%rdx,4)
  add    $0x1,%eax
  add    $0x1,%rdx
  cmp    %ecx,%esi
  jle    L25
  cmp    %eax,%r11d
  jle    L103
  movslq %eax,%r12
  mov    (%r8,%rbp,4),%r9d
  mov    %edx,%ebx
  mov    (%r8,%r12,4),%r10d
  cmp    %r10d,%r9d
  jg     L366
L5:
  mov    %r9d,-0x4(%rdi,%rdx,4)
  add    $0x1,%ecx
  add    $0x1,%rdx
  cmp    %eax,%r11d
  jle    L103
  cmp    %ecx,%esi
  jle    L25
  movslq %ecx,%rbp
  jmp    L26
  nopl   0x0(%rax,%rax,1)
L165:
  mov    (%rdi,%rdx,4),%ecx
  mov    %ecx,(%r8,%rdx,4)
  add    $0x1,%rdx
  cmp    %edx,%esi
  jle    L273
  mov    (%rdi,%rdx,4),%ecx
  mov    %ecx,(%r8,%rdx,4)
  add    $0x1,%rdx
  cmp    %edx,%esi
  jg     L165
  jmp    L273
  nopw   0x0(%rax,%rax,1)
L12:
  mov    %eax,%ebx
  mov    %r11d,%ecx
  nopl   (%rax)
L25:
  cmp    %eax,%r11d
  jle    L103
  movslq %ebx,%r12
  movslq %eax,%r9
  mov    %r11d,%ebp
  shl    $0x2,%r12
  lea    0x1(%r9),%rdx
  sub    %eax,%ebp
  lea    (%rdi,%r12,1),%r10
  lea    0x0(,%rdx,4),%r15
  lea    (%r8,%r15,1),%r14
  mov    %r10,%r13
  sub    %r14,%r13
  cmp    $0x8,%r13
  jbe    L379
  lea    -0x1(%rbp),%r13d
  cmp    $0x2,%r13d
  jbe    L379
  mov    %ebp,%r9d
  lea    -0x4(%r8,%r15,1),%r12
  xor    %edx,%edx
  shr    $0x2,%r9d
  shl    $0x4,%r9
  nopl   0x0(%rax)
L246:
  movdqu (%r12,%rdx,1),%xmm1
  movups %xmm1,(%r10,%rdx,1)
  add    $0x10,%rdx
  cmp    %rdx,%r9
  jne    L246
  mov    %ebp,%r9d
  and    $0xfffffffc,%r9d
  add    %r9d,%eax
  lea    (%rbx,%r9,1),%edx
  cmp    %r9d,%ebp
  je     L298
  movslq %eax,%r9
  mov    (%r8,%r9,4),%r10d
  movslq %edx,%r9
  add    $0x1,%edx
  mov    %r10d,(%rdi,%r9,4)
  lea    0x1(%rax),%r9d
  cmp    %r9d,%r11d
  jle    L298
  movslq %r9d,%r9
  movslq %edx,%rdx
  add    $0x2,%eax
  lea    0x0(,%r9,4),%r12
  mov    (%r8,%r9,4),%r9d
  lea    0x0(,%rdx,4),%r10
  mov    %r9d,(%rdi,%rdx,4)
  cmp    %eax,%r11d
  jle    L298
  mov    0x4(%r8,%r12,1),%eax
  mov    %eax,0x4(%rdi,%r10,1)
L298:
  add    %ebp,%ebx
L103:
  cmp    %ecx,%esi
  jle    L258
  movslq %ebx,%r10
  movslq %ecx,%rdx
  mov    %esi,%r11d
  shl    $0x2,%r10
  lea    0x1(%rdx),%rax
  sub    %ecx,%r11d
  lea    (%rdi,%r10,1),%r9
  lea    0x0(,%rax,4),%rbp
  lea    (%r8,%rbp,1),%r13
  mov    %r9,%r12
  sub    %r13,%r12
  cmp    $0x8,%r12
  jbe    L223
  lea    -0x1(%r11),%r12d
  cmp    $0x2,%r12d
  jbe    L223
  mov    %r11d,%edx
  lea    -0x4(%r8,%rbp,1),%r10
  xor    %eax,%eax
  shr    $0x2,%edx
  shl    $0x4,%rdx
  cs nopw 0x0(%rax,%rax,1)
L39:
  movdqu (%r10,%rax,1),%xmm2
  movups %xmm2,(%r9,%rax,1)
  add    $0x10,%rax
  cmp    %rax,%rdx
  jne    L39
  mov    %r11d,%eax
  and    $0xfffffffc,%eax
  add    %eax,%ecx
  add    %eax,%ebx
  cmp    %eax,%r11d
  je     L258
  movslq %ecx,%rax
  mov    (%r8,%rax,4),%edx
  movslq %ebx,%rax
  add    $0x1,%ebx
  mov    %edx,(%rdi,%rax,4)
  lea    0x1(%rcx),%eax
  cmp    %esi,%eax
  jge    L258
  cltq
  movslq %ebx,%rbx
  add    $0x2,%ecx
  lea    0x0(,%rax,4),%r9
  mov    (%r8,%rax,4),%eax
  lea    0x0(,%rbx,4),%rdx
  mov    %eax,(%rdi,%rbx,4)
  cmp    %esi,%ecx
  jge    L258
  mov    0x4(%r8,%r9,1),%eax
  mov    %eax,0x4(%rdi,%rdx,1)
L258:
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
  nopl   0x0(%rax)
L379:
  mov    %r9,%rax
  neg    %rax
  lea    (%r12,%rax,4),%r10
  add    %rdi,%r10
  jmp    L19
  nopw   0x0(%rax,%rax,1)
L28:
  add    $0x1,%rdx
L19:
  mov    (%r8,%r9,4),%eax
  mov    %eax,(%r10,%r9,4)
  mov    %rdx,%r9
  cmp    %edx,%r11d
  jg     L28
  add    %ebp,%ebx
  jmp    L103
  nopl   0x0(%rax,%rax,1)
L223:
  mov    %rdx,%rcx
  neg    %rcx
  lea    (%r10,%rcx,4),%rcx
  add    %rcx,%rdi
  jmp    L51
  nop
L35:
  add    $0x1,%rax
L51:
  mov    (%r8,%rdx,4),%ecx
  mov    %ecx,(%rdi,%rdx,4)
  mov    %rax,%rdx
  cmp    %eax,%esi
  jg     L35
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
```

assistant: ```c
void merge(int arrayPtr[], int start, int middle, int end, int aux[]) {
  for (int i = start; i < end; ++i)
    aux[i] = arrayPtr[i];
  int idx1 = start;
  int idx2 = middle;
  int i = start;
  while (idx1 < middle && idx2 < end) {
    if (aux[idx1] < aux[idx2]) {
      arrayPtr[i] = aux[idx1];
      ++i;
      ++idx1;
    } else {
      arrayPtr[i] = aux[idx2];
      ++i;
      ++idx2;
    }
  }
  while (idx1 < middle) {
    arrayPtr[i] = aux[idx1];
    ++idx1;
    ++i;
  }
  while (idx2 < end) {
    arrayPtr[i] = aux[idx2];
    ++idx2;
    ++i;
  }
}
```