user: Translate the below assembly code into C programming language:

```asm
<findBlock>:
  endbr64
  push   %r12
  push   %rbp
  xor    %ebp,%ebp
  push   %rbx
  movzbl (%rdi),%r9d
  movzbl 0x1(%rdi),%eax
  movzbl 0x2(%rdi),%ecx
  cmp    $0x78,%r9b
  sete   %bpl
  cmp    $0x78,%al
  je     L701
  cmp    $0x78,%cl
  je     L418
L492:
  movzbl 0x3(%rdi),%r10d
  movzbl 0x4(%rdi),%edx
  xor    %esi,%esi
  movzbl 0x5(%rdi),%r11d
  cmp    $0x78,%r10b
  sete   %sil
  cmp    $0x78,%dl
  je     L78
  cmp    $0x78,%r11b
  je     L237
L347:
  movzbl 0x6(%rdi),%r8d
  movzbl 0x7(%rdi),%ebx
  xor    %r12d,%r12d
  movzbl 0x8(%rdi),%esi
  cmp    $0x78,%r8b
  sete   %r12b
  cmp    $0x78,%bl
  je     L26
  cmp    $0x78,%sil
  je     L217
L251:
  cmp    $0x78,%r10b
  je     L3
  cmp    $0x78,%r8b
  je     L178
L235:
  xor    %edi,%edi
  cmp    $0x78,%al
  sete   %dil
  cmp    $0x78,%dl
  je     L103
  cmp    $0x78,%bl
  je     L590
L121:
  xor    %eax,%eax
  cmp    $0x78,%cl
  sete   %al
  cmp    $0x78,%r11b
  je     L302
  cmp    $0x78,%sil
  je     L609
L135:
  cmp    $0x78,%r9b
  je     L562
  cmp    $0x78,%dl
  je     L101
  cmp    $0x78,%sil
  je     L262
L35:
  cmp    $0x78,%cl
  je     L153
L149:
  mov    $0xffffffff,%eax
L729:
  pop    %rbx
  pop    %rbp
  pop    %r12
  ret
  nop
L418:
  mov    %ebp,%edx
L450:
  add    $0x1,%edx
L589:
  cmp    $0x2,%edx
  jne    L492
  cmp    $0x20,%r9b
  je     L384
  cmp    $0x20,%al
  je     L697
  cmp    $0x20,%cl
  jne    L492
  xor    %eax,%eax
L176:
  add    $0x2,%eax
  jmp    L729
L78:
  add    $0x1,%esi
  cmp    $0x78,%r11b
  jne    L464
L237:
  add    $0x1,%esi
L464:
  cmp    $0x2,%esi
  jne    L347
  cmp    $0x20,%r10b
  je     L100
  cmp    $0x20,%dl
  je     L373
  cmp    $0x20,%r11b
  jne    L347
  mov    $0x3,%eax
  jmp    L176
  nopl   0x0(%rax)
L26:
  add    $0x1,%r12d
  cmp    $0x78,%sil
  jne    L308
L217:
  add    $0x1,%r12d
L308:
  cmp    $0x2,%r12d
  jne    L251
  cmp    $0x20,%r8b
  je     L425
  cmp    $0x20,%bl
  je     L471
  cmp    $0x20,%sil
  jne    L251
  mov    $0x6,%eax
  jmp    L176
  nopl   0x0(%rax,%rax,1)
L3:
  add    $0x1,%ebp
  cmp    $0x78,%r8b
  jne    L21
L178:
  add    $0x1,%ebp
L21:
  cmp    $0x2,%ebp
  jne    L235
  cmp    $0x20,%r9b
  je     L384
  cmp    $0x20,%r10b
  je     L100
  cmp    $0x20,%r8b
  jne    L235
L425:
  mov    $0x6,%eax
  jmp    L729
  nopl   (%rax)
L103:
  add    $0x1,%edi
  cmp    $0x78,%bl
  jne    L518
L590:
  add    $0x1,%edi
L518:
  cmp    $0x2,%edi
  jne    L121
  cmp    $0x20,%al
  je     L679
  cmp    $0x20,%dl
  je     L276
  cmp    $0x20,%bl
  jne    L121
  mov    $0x7,%eax
  jmp    L729
  nopl   0x0(%rax,%rax,1)
L302:
  add    $0x1,%eax
  cmp    $0x78,%sil
  jne    L238
L609:
  add    $0x1,%eax
L238:
  cmp    $0x2,%eax
  jne    L135
  cmp    $0x20,%cl
  je     L729
  mov    $0x5,%eax
  cmp    $0x20,%r11b
  je     L729
  cmp    $0x20,%sil
  jne    L135
L45:
  mov    $0x8,%eax
  jmp    L729
  nopl   0x0(%rax)
L701:
  lea    0x1(%rbp),%edx
  cmp    $0x78,%cl
  jne    L589
  jmp    L450
  nopl   0x0(%rax)
L562:
  cmp    $0x78,%dl
  je     L551
  cmp    $0x78,%sil
  jne    L35
  mov    $0x4,%eax
  cmp    $0x20,%dl
  je     L729
L262:
  cmp    $0x78,%cl
  je     L153
  cmp    $0x78,%dl
  jne    L149
  jmp    L574
  nopl   (%rax)
L101:
  cmp    $0x78,%sil
  jne    L362
  xor    %eax,%eax
  cmp    $0x20,%r9b
  je     L729
L362:
  cmp    $0x78,%cl
  je     L466
L574:
  cmp    $0x78,%r8b
  jne    L149
  xor    %eax,%eax
  cmp    $0x20,%cl
  pop    %rbx
  pop    %rbp
  sete   %al
  pop    %r12
  lea    -0x1(%rax,%rax,2),%eax
  ret
  nopw   0x0(%rax,%rax,1)
L551:
  cmp    $0x78,%sil
  je     L362
  cmp    $0x20,%sil
  jne    L362
  jmp    L45
  nopl   0x0(%rax)
L153:
  cmp    $0x78,%r8b
  jne    L149
  xor    %eax,%eax
  cmp    $0x20,%dl
  sete   %al
  lea    -0x1(%rax,%rax,4),%eax
  jmp    L729
  nopl   0x0(%rax,%rax,1)
L466:
  cmp    $0x78,%r8b
  je     L149
  cmp    $0x20,%r8b
  mov    $0xffffffff,%eax
  mov    $0x6,%edx
  pop    %rbx
  cmove  %edx,%eax
  pop    %rbp
  pop    %r12
  ret
L384:
  xor    %eax,%eax
  jmp    L729
L100:
  mov    $0x3,%eax
  jmp    L729
L697:
  xor    %eax,%eax
L685:
  add    $0x1,%eax
  jmp    L729
L373:
  mov    $0x3,%eax
  jmp    L685
L679:
  mov    $0x1,%eax
  jmp    L729
L471:
  mov    $0x6,%eax
  jmp    L685
L276:
  mov    $0x4,%eax
  jmp    L729
```

assistant: ```c
int findBlock(char *playground) {
  int count = 0;
  int p;
  for (p = 0; p < 3; p++) {
    if (playground[p * 3 + 0] == 'x')
      count += 1;
    if (playground[p * 3 + 1] == 'x')
      count += 1;
    if (playground[p * 3 + 2] == 'x')
      count += 1;
    if (count == 2) {
      if (playground[p * 3 + 0] == ' ')
        return p * 3 + 0;
      if (playground[p * 3 + 1] == ' ')
        return p * 3 + 1;
      if (playground[p * 3 + 2] == ' ')
        return p * 3 + 2;
    }
    count = 0;
  }
  for (p = 0; p < 3; p++) {
    if (playground[3 * 0 + p] == 'x')
      count += 1;
    if (playground[3 * 1 + p] == 'x')
      count += 1;
    if (playground[3 * 2 + p] == 'x')
      count += 1;
    if (count == 2) {
      if (playground[3 * 0 + p] == ' ')
        return 3 * 0 + p;
      if (playground[3 * 1 + p] == ' ')
        return 3 * 1 + p;
      if (playground[3 * 2 + p] == ' ')
        return 3 * 2 + p;
    }
    count = 0;
  }
  if (playground[3 * 0 + 0] == 'x')
    count += 1;
  if (playground[3 * 1 + 1] == 'x')
    count += 1;
  if (playground[3 * 2 + 2] == 'x')
    count += 1;
  if (count == 2) {
    if (playground[3 * 0 + 0] == ' ')
      return 3 * 0 + 0;
    if (playground[3 * 1 + 1] == ' ')
      return 3 * 1 + 1;
    if (playground[3 * 2 + 2] == ' ')
      return 3 * 2 + 2;
  }
  count = 0;
  if (playground[3 * 0 + 2] == 'x')
    count += 1;
  if (playground[3 * 1 + 1] == 'x')
    count += 1;
  if (playground[3 * 2 + 0] == 'x')
    count += 1;
  if (count == 2) {
    if (playground[3 * 0 + 2] == ' ')
      return 3 * 0 + 2;
    if (playground[3 * 1 + 1] == ' ')
      return 3 * 1 + 1;
    if (playground[3 * 2 + 0] == ' ')
      return 3 * 2 + 0;
  }
  return -1;
}
```