user: 请将这段汇编代码片段转换成等效的C代码:

```asm
<combine>:
  endbr64
  push   %r15
  mov    %edx,%r15d
  mov    %esi,%edx
  push   %r14
  sub    %ecx,%edx
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x68,%rsp
  cmp    %edx,%r15d
  jg     L260
  mov    %rdi,%rbp
  test   %r15d,%r15d
  je     L200
  mov    %ecx,%eax
  lea    -0x1(%r15),%edi
  add    $0x1,%eax
  mov    %edi,0x3c(%rsp)
  cltq
  mov    %rax,0x30(%rsp)
  lea    0x1(%rsi),%eax
  mov    %eax,0x8(%rsp)
  lea    -0x9(%r15),%eax
  mov    %eax,0x4c(%rsp)
  mov    %r15d,%eax
  mov    %esi,%r15d
  mov    %eax,%r14d
L232:
  mov    0x30(%rsp),%rdi
  mov    %r15d,%edx
  mov    0x3c(%rsp),%ecx
  sub    %edi,%edx
  movl   $0x1,-0x4(%rbp,%rdi,4)
  mov    %rdi,%rax
  cmp    %edx,%ecx
  jg     L18
  add    $0x1,%eax
  lea    -0x2(%r14),%ebx
  cltq
  mov    %ebx,0x44(%rsp)
  mov    %rax,0x28(%rsp)
  test   %ecx,%ecx
  je     L212
L132:
  mov    0x28(%rsp),%rdi
  mov    %r15d,%edx
  mov    0x44(%rsp),%esi
  sub    %edi,%edx
  movl   $0x1,-0x4(%rbp,%rdi,4)
  mov    %rdi,%rax
  cmp    %edx,%esi
  jg     L209
  add    $0x1,%eax
  lea    -0x3(%r14),%edx
  cltq
  mov    %edx,0x40(%rsp)
  mov    %rax,0x20(%rsp)
  test   %esi,%esi
  je     L214
  mov    %r14d,0xc(%rsp)
  mov    %r15d,%r14d
L28:
  mov    0x20(%rsp),%rdi
  mov    %r14d,%edx
  movl   $0x1,-0x4(%rbp,%rdi,4)
  mov    %rdi,%rax
  sub    %edi,%edx
  mov    0x40(%rsp),%edi
  cmp    %edx,%edi
  jg     L286
  mov    0xc(%rsp),%ebx
  add    $0x1,%eax
  cltq
  lea    -0x4(%rbx),%esi
  mov    %rax,0x18(%rsp)
  mov    %esi,0x48(%rsp)
  test   %edi,%edi
  je     L22
L116:
  mov    0x18(%rsp),%rax
  mov    %r14d,%ecx
  mov    0x48(%rsp),%esi
  sub    %eax,%ecx
  movl   $0x1,-0x4(%rbp,%rax,4)
  mov    %eax,%ebx
  cmp    %ecx,%esi
  jg     L13
  mov    0xc(%rsp),%eax
  add    $0x1,%ebx
  mov    %r14d,%r12d
  movslq %ebx,%rbx
  sub    $0x5,%eax
  mov    %eax,0x14(%rsp)
  test   %esi,%esi
  je     L170
L155:
  mov    %r12d,%eax
  mov    0x14(%rsp),%edi
  movl   $0x1,-0x4(%rbp,%rbx,4)
  mov    %ebx,%r9d
  sub    %ebx,%eax
  cmp    %eax,%edi
  jg     L284
  mov    0xc(%rsp),%eax
  add    $0x1,%r9d
  movslq %r9d,%r14
  lea    -0x6(%rax),%ecx
  sub    $0x7,%eax
  mov    %ecx,0x10(%rsp)
  mov    %eax,0x38(%rsp)
  test   %edi,%edi
  je     L191
  mov    %rbx,0x58(%rsp)
  mov    %r12d,%r15d
  nopw   0x0(%rax,%rax,1)
L228:
  mov    %r15d,%edx
  mov    0x10(%rsp),%esi
  mov    %r14d,%eax
  movl   $0x1,-0x4(%rbp,%r14,4)
  sub    %r14d,%edx
  cmp    %edx,%esi
  jg     L82
  add    $0x1,%eax
  movslq %eax,%r13
  mov    0xc(%rsp),%eax
  lea    -0x8(%rax),%r12d
  test   %esi,%esi
  je     L119
  mov    %r12d,%eax
  mov    %r14,0x50(%rsp)
  mov    %r13,%r12
  mov    %r15d,%r14d
  mov    %eax,%r13d
  mov    %rbp,%r15
  nopl   0x0(%rax,%rax,1)
L54:
  mov    %r14d,%eax
  mov    0x38(%rsp),%ecx
  mov    %r12d,%ebx
  movl   $0x1,-0x4(%r15,%r12,4)
  sub    %r12d,%eax
  cmp    %eax,%ecx
  jg     L123
  add    $0x1,%ebx
  movslq %ebx,%rbx
  test   %ecx,%ecx
  je     L238
  nopl   0x0(%rax)
L95:
  movl   $0x1,-0x4(%r15,%rbx,4)
  mov    %r14d,%eax
  movslq %ebx,%rbp
  sub    %ebx,%eax
  cmp    %r13d,%eax
  jl     L11
  test   %r13d,%r13d
  je     L76
  mov    %r14d,%eax
  mov    %rbx,%r14
  mov    %eax,%ebx
  nopw   0x0(%rax,%rax,1)
L34:
  movl   $0x1,(%r15,%rbp,4)
  lea    0x1(%rbp),%ecx
  mov    %ebx,%esi
  mov    %r15,%rdi
  mov    0x4c(%rsp),%edx
  call   <combine>
  movl   $0x0,(%r15,%rbp,4)
  mov    %ebx,%edx
  add    $0x1,%rbp
  sub    %ebp,%edx
  cmp    %r13d,%edx
  jge    L34
  mov    %ebx,%eax
  mov    %r14,%rbx
  mov    %eax,%r14d
L11:
  movl   $0x0,-0x4(%r15,%rbx,4)
  mov    0x8(%rsp),%eax
  add    $0x1,%rbx
  sub    %ebx,%eax
  cmp    %eax,0x38(%rsp)
  jle    L95
L123:
  movl   $0x0,-0x4(%r15,%r12,4)
  mov    0x8(%rsp),%eax
  add    $0x1,%r12
  sub    %r12d,%eax
  cmp    0x10(%rsp),%eax
  jge    L54
  mov    %r15,%rbp
  mov    %r14d,%r15d
  mov    0x50(%rsp),%r14
L82:
  movl   $0x0,-0x4(%rbp,%r14,4)
  mov    0x8(%rsp),%eax
  add    $0x1,%r14
  sub    %r14d,%eax
  cmp    %eax,0x14(%rsp)
  jle    L228
  mov    0x58(%rsp),%rbx
  mov    %r15d,%r12d
L284:
  mov    0x8(%rsp),%eax
  movl   $0x0,-0x4(%rbp,%rbx,4)
  add    $0x1,%rbx
  sub    %ebx,%eax
  cmp    %eax,0x48(%rsp)
  jle    L155
  mov    %r12d,%r14d
L13:
  mov    0x18(%rsp),%rax
  mov    0x8(%rsp),%ecx
  movl   $0x0,-0x4(%rbp,%rax,4)
  add    $0x1,%rax
  mov    %rax,0x18(%rsp)
  sub    %eax,%ecx
  cmp    %ecx,0x40(%rsp)
  jle    L116
L286:
  mov    0x20(%rsp),%rax
  mov    0x8(%rsp),%ecx
  movl   $0x0,-0x4(%rbp,%rax,4)
  add    $0x1,%rax
  mov    %rax,0x20(%rsp)
  sub    %eax,%ecx
  cmp    %ecx,0x44(%rsp)
  jle    L28
  mov    %r14d,%r15d
  mov    0xc(%rsp),%r14d
L209:
  mov    0x28(%rsp),%rax
  mov    0x8(%rsp),%esi
  movl   $0x0,-0x4(%rbp,%rax,4)
  add    $0x1,%rax
  mov    %rax,0x28(%rsp)
  sub    %eax,%esi
  cmp    %esi,0x3c(%rsp)
  jle    L132
  jmp    L18
  nopl   0x0(%rax)
L76:
  mov    %r14d,%esi
  mov    %r15,%rdi
  call   <printArr@plt>
  jmp    L11
L238:
  mov    %r14d,%esi
  mov    %r15,%rdi
  call   <printArr@plt>
  jmp    L123
L191:
  mov    %r12d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L284
L119:
  mov    %r15d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L82
L170:
  mov    %r14d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L13
L22:
  mov    %r14d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L286
L212:
  mov    %r15d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
L18:
  mov    0x30(%rsp),%rax
  mov    0x8(%rsp),%ecx
  movl   $0x0,-0x4(%rbp,%rax,4)
  add    $0x1,%rax
  sub    %eax,%ecx
  mov    %rax,0x30(%rsp)
  cmp    %ecx,%r14d
  jle    L232
L260:
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L214:
  mov    %r15d,%esi
  mov    %rbp,%rdi
  call   <printArr@plt>
  jmp    L209
L200:
  add    $0x68,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  jmp    1050 <printArr@plt>
```

assistant: ```c
void combine(int *arr, int len, int sub, int pos) {
  if (sub > len - pos) {
    return;
  }
  if (!sub) {
    printArr(arr, len);
    return;
  }
  arr[pos] = 1;
  combine(arr, len, sub - 1, pos + 1);
  arr[pos] = 0;
  combine(arr, len, sub, pos + 1);
}
```