user: 提供的汇编代码用C语言表示会是什么样子:

```asm
<generic_partition>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x38,%rsp
  mov    %rdi,0x18(%rsp)
  mov    %rcx,%r12
  mov    %rdx,%rbp
  imul   %rcx,%rbp
  add    %rdi,%rbp
  lea    -0x1(%rsi),%rax
  mov    %rax,0x8(%rsp)
  cmp    %rsi,%rdx
  jbe    L17
  mov    %rsi,%r14
  mov    %rdx,%r15
  mov    %rcx,%r13
  imul   %rsi,%r13
  add    %rdi,%r13
  mov    %ecx,0x24(%rsp)
  lea    -0x4(%rcx),%ecx
  mov    %ecx,%eax
  shr    $0x2,%eax
  lea    0x1(%rax),%edx
  mov    %edx,%edx
  lea    0x0(,%rdx,4),%rbx
  mov    %rbx,0x10(%rsp)
  shl    $0x2,%eax
  sub    %eax,%ecx
  mov    %ecx,0x28(%rsp)
  mov    %r12d,0x2c(%rsp)
  mov    %r12,(%rsp)
  mov    %r8,%r12
  jmp    L87
L67:
  mov    0x2c(%rsp),%edi
  mov    %r13,%rax
  jmp    L91
L75:
  add    $0x1,%r14
  add    (%rsp),%r13
  cmp    %r14,%r15
  je     L108
L87:
  mov    %r13,%rbx
  mov    %rbp,%rsi
  mov    %r13,%rdi
  call   *%r12
  test   %eax,%eax
  jg     L75
  addq   $0x1,0x8(%rsp)
  mov    0x8(%rsp),%rax
  mov    (%rsp),%rdx
  imul   %rax,%rdx
  add    0x18(%rsp),%rdx
  cmpl   $0x3,0x24(%rsp)
  jbe    L67
  mov    0x10(%rsp),%rax
  add    %r13,%rax
  mov    %rdx,%rcx
L53:
  mov    (%rbx),%esi
  mov    (%rcx),%edi
  mov    %edi,(%rbx)
  mov    %esi,(%rcx)
  add    $0x4,%rbx
  add    $0x4,%rcx
  cmp    %rax,%rbx
  jne    L53
  add    0x10(%rsp),%rdx
  mov    0x28(%rsp),%edi
L91:
  test   %edi,%edi
  je     L75
  mov    %edi,%edi
  add    %rax,%rdi
L46:
  movzbl (%rax),%ecx
  movzbl (%rdx),%esi
  mov    %sil,(%rax)
  mov    %cl,(%rdx)
  add    $0x1,%rax
  add    $0x1,%rdx
  cmp    %rdi,%rax
  jne    L46
  jmp    L75
L108:
  mov    (%rsp),%r12
L17:
  mov    0x8(%rsp),%rax
  add    $0x1,%rax
  mov    %r12,%rcx
  imul   %rax,%rcx
  add    0x18(%rsp),%rcx
  cmp    $0x3,%r12d
  jbe    L90
  sub    $0x4,%r12d
  mov    %r12d,%r10d
  shr    $0x2,%r10d
  lea    0x1(%r10),%r9d
  mov    %r9d,%r9d
  shl    $0x2,%r9
  lea    0x0(%rbp,%r9,1),%rdx
  mov    %rcx,%rsi
L5:
  mov    (%rsi),%edi
  mov    0x0(%rbp),%r8d
  mov    %r8d,(%rsi)
  mov    %edi,0x0(%rbp)
  add    $0x4,%rsi
  add    $0x4,%rbp
  cmp    %rdx,%rbp
  jne    L5
  add    %r9,%rcx
  shl    $0x2,%r10d
  sub    %r10d,%r12d
L60:
  test   %r12d,%r12d
  je     L14
  mov    %r12d,%r12d
  lea    (%rdx,%r12,1),%rsi
L142:
  movzbl (%rcx),%edi
  movzbl (%rdx),%r8d
  mov    %r8b,(%rcx)
  mov    %dil,(%rdx)
  add    $0x1,%rcx
  add    $0x1,%rdx
  cmp    %rsi,%rdx
  jne    L142
L14:
  add    $0x38,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L90:
  mov    %rbp,%rdx
  jmp    L60
```

assistant: ```c
int generic_partition(void *array, size_t p, size_t r, size_t size, int (*compare)(const void *, const void *)) {
  unsigned char *a = (unsigned char *)array;
  unsigned char *x = &a[r * size];
  size_t i = p - 1;
  int temp, k;
  unsigned char *ptr1, *ptr2;
  for (size_t j = p; j < r; ++j) {
    if (compare(&a[j * size], x) <= 0) {
      ++i;
      k = size;
      ptr1 = &a[j * size];
      ptr2 = &a[i * size];
      while (k >= sizeof(int)) {
        temp = *(int *)ptr1;
        *(int *)ptr1 = *(int *)ptr2;
        *(int *)ptr2 = temp;
        k -= sizeof(int);
        ptr1 += sizeof(int);
        ptr2 += sizeof(int);
      }
      while (k) {
        temp = *ptr1;
        *ptr1 = *ptr2;
        *ptr2 = temp;
        --k;
        ++ptr1;
        ++ptr2;
      }
    }
  }
  ++i;
  k = size;
  ptr1 = &a[i * size];
  while (k >= sizeof(int)) {
    temp = *(int *)ptr1;
    *(int *)ptr1 = *(int *)x;
    *(int *)x = temp;
    k -= sizeof(int);
    ptr1 += sizeof(int);
    x += sizeof(int);
  }
  while (k) {
    temp = *ptr1;
    *ptr1 = *x;
    *x = temp;
    --k;
    ++ptr1;
    ++x;
  }
  return i;
}
```