user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<ratt>:
  endbr64
  test   %edi,%edi
  mov    %rsi,%r8
  lea    0x7(%rdi),%esi
  mov    %edi,%eax
  cmovns %edi,%esi
  sar    $0x1f,%eax
  shr    $0x1d,%eax
  lea    (%rdi,%rax,1),%edx
  sar    $0x3,%esi
  and    $0x7,%edx
  mov    %esi,%r9d
  sub    %eax,%edx
  lea    0x1(%rsi),%eax
  cmp    $0x7,%eax
  jg     L140
  lea    0x0(,%rax,8),%esi
  mov    $0x1,%eax
  lea    (%rdx,%rsi,1),%ecx
  shl    %cl,%rax
  bt     %rcx,%r8
  jb     L374
  lea    0x8(%rsi,%rdx,1),%ecx
  lea    0x40(%rdx),%r10d
  mov    $0x1,%r11d
  jmp    L37
  nopl   0x0(%rax)
L488:
  mov    %r11,%rdi
  mov    %ecx,%esi
  shl    %cl,%rdi
  add    $0x8,%ecx
  or     %rdi,%rax
  bt     %rsi,%r8
  jb     L374
L37:
  cmp    %r10d,%ecx
  jne    L488
L374:
  mov    %r9d,%esi
  sub    $0x1,%esi
  js     L137
  shl    $0x3,%esi
  mov    $0x1,%edi
  lea    (%rdx,%rsi,1),%ecx
  shl    %cl,%rdi
  or     %rdi,%rax
  bt     %rcx,%r8
  jb     L137
  lea    -0x8(%rsi,%rdx,1),%ecx
  lea    -0x8(%rdx),%r10d
  mov    $0x1,%r11d
  jmp    L142
  nopl   0x0(%rax,%rax,1)
L340:
  mov    %r11,%rdi
  mov    %ecx,%esi
  shl    %cl,%rdi
  sub    $0x8,%ecx
  or     %rdi,%rax
  bt     %rsi,%r8
  jb     L137
L142:
  cmp    %r10d,%ecx
  jne    L340
L137:
  lea    0x1(%rdx),%ecx
  lea    -0x1(%rdx),%edi
  lea    0x0(,%r9,8),%esi
  cmp    $0x7,%edx
  je     L444
  add    %esi,%ecx
  mov    $0x1,%r9d
  bts    %rcx,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x2(%rdx),%ecx
  cmp    $0x6,%edx
  je     L59
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x3(%rdx),%ecx
  cmp    $0x5,%edx
  je     L59
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x4(%rdx),%ecx
  cmp    $0x4,%edx
  je     L59
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x5(%rdx),%ecx
  cmp    $0x3,%edx
  je     L479
  add    %esi,%ecx
  shl    %cl,%r9
  or     %r9,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x6(%rdx),%ecx
  cmp    $0x2,%edx
  je     L479
  mov    $0x1,%r9d
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x7(%rdx),%ecx
  cmp    $0x1,%edx
  je     L479
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x8(%rdx),%ecx
  test   %edx,%edx
  je     L479
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0x9(%rdx),%ecx
  cmp    $0xffffffff,%edx
  je     L479
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0xa(%rdx),%ecx
  cmp    $0xfffffffe,%edx
  je     L479
  add    %esi,%ecx
  shl    %cl,%r9
  or     %r9,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0xb(%rdx),%ecx
  cmp    $0xfffffffd,%edx
  je     L479
  mov    $0x1,%r9d
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0xc(%rdx),%ecx
  cmp    $0xfffffffc,%edx
  je     L479
  add    %esi,%ecx
  mov    %r9,%r10
  shl    %cl,%r10
  or     %r10,%rax
  bt     %rcx,%r8
  jb     L479
  lea    0xd(%rdx),%r10d
  cmp    $0xfffffffb,%edx
  je     L479
  lea    (%rsi,%r10,1),%ecx
  mov    %r9,%r11
  shl    %cl,%r11
  or     %r11,%rax
  bt     %rcx,%r8
  jb     L479
  cmp    $0x6,%r10d
  jne    L479
  lea    0x7(%rsi),%ecx
  shl    %cl,%r9
  or     %r9,%rax
L479:
  test   %edi,%edi
  js     L428
L59:
  lea    (%rdi,%rsi,1),%ecx
  mov    $0x1,%r9d
  shl    %cl,%r9
  or     %r9,%rax
  bt     %rcx,%r8
  jb     L428
  lea    -0x2(%rdx),%edi
  cmp    $0x1,%edx
  je     L428
L350:
  mov    $0x1,%edx
  lea    (%rdi,%rsi,1),%ecx
  mov    %rdx,%r9
  shl    %cl,%r9
  or     %r9,%rax
  bt     %rcx,%r8
  jb     L428
  lea    -0x1(%rdi),%ecx
  test   %edi,%edi
  je     L428
  add    %esi,%ecx
  mov    %rdx,%r9
  shl    %cl,%r9
  or     %r9,%rax
  bt     %rcx,%r8
  jb     L428
  lea    -0x2(%rdi),%ecx
  cmp    $0x1,%edi
  je     L428
  add    %esi,%ecx
  mov    %rdx,%r9
  shl    %cl,%r9
  or     %r9,%rax
  bt     %rcx,%r8
  jb     L428
  lea    -0x3(%rdi),%ecx
  cmp    $0x2,%edi
  je     L428
  add    %esi,%ecx
  mov    %rdx,%r9
  shl    %cl,%r9
  or     %r9,%rax
  bt     %rcx,%r8
  jb     L428
  lea    -0x4(%rdi),%r9d
  cmp    $0x3,%edi
  je     L428
  lea    (%rsi,%r9,1),%ecx
  shl    %cl,%rdx
  or     %rdx,%rax
  bt     %rcx,%r8
  jb     L428
  test   %r9d,%r9d
  je     L428
  mov    %esi,%ecx
  mov    $0x1,%edx
  shl    %cl,%rdx
  or     %rdx,%rax
  ret
  nop
L428:
  ret
L444:
  add    %esi,%edi
  bts    %rdi,%rax
  bt     %rdi,%r8
  jb     L428
  lea    -0x2(%rdx),%edi
  jmp    L350
L140:
  xor    %eax,%eax
  jmp    L374
```

assistant: ```c
uint64_t ratt(int sq, uint64_t block) {
  uint64_t result = 0ULL;
  int rk = sq / 8, fl = sq % 8, r, f;
  for (r = rk + 1; r <= 7; r++) {
    result |= (1ULL << (fl + r * 8));
    if (block & (1ULL << (fl + r * 8)))
      break;
  }
  for (r = rk - 1; r >= 0; r--) {
    result |= (1ULL << (fl + r * 8));
    if (block & (1ULL << (fl + r * 8)))
      break;
  }
  for (f = fl + 1; f <= 7; f++) {
    result |= (1ULL << (f + rk * 8));
    if (block & (1ULL << (f + rk * 8)))
      break;
  }
  for (f = fl - 1; f >= 0; f--) {
    result |= (1ULL << (f + rk * 8));
    if (block & (1ULL << (f + rk * 8)))
      break;
  }
  return result;
}
```