user: Please show me the C implementation that matches the assembly code listed below:

```asm
<isValidSudoku0>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  mov    %esi,%r12d
  push   %rbp
  push   %rbx
  movslq %edx,%rbx
  sub    $0x48,%rsp
  mov    %rdi,0x8(%rsp)
  mov    %fs:0x28,%rax
  mov    %rax,0x38(%rsp)
  xor    %eax,%eax
  test   %esi,%esi
  jle    L307
  lea    -0x1(%rsi),%eax
  mov    %rdi,%r15
  lea    0x10(%rsp),%rbp
  movslq %ebx,%r13
  lea    0x8(%rdi,%rax,8),%r14
L348:
  xor    %esi,%esi
  mov    $0x28,%edx
  mov    %rbp,%rdi
  call   <memset@plt>
  test   %ebx,%ebx
  jle    L1
  mov    (%r15),%rdx
  lea    0x0(%r13,%rdx,1),%r8
  nopl   0x0(%rax,%rax,1)
L38:
  movsbl (%rdx),%eax
  cmp    $0x2e,%al
  je     L223
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%esi
  lea    0x1(%rsi),%edi
  mov    %edi,0x10(%rsp,%rax,4)
  test   %esi,%esi
  jne    L156
L223:
  add    $0x1,%rdx
  cmp    %rdx,%r8
  jne    L38
L1:
  add    $0x8,%r15
  cmp    %r15,%r14
  jne    L348
L58:
  test   %ebx,%ebx
  jle    L160
  mov    0x8(%rsp),%rcx
  lea    -0x1(%r12),%eax
  xor    %r13d,%r13d
  lea    0x8(%rcx,%rax,8),%r14
L218:
  mov    $0x28,%edx
  xor    %esi,%esi
  mov    %rbp,%rdi
  call   <memset@plt>
  mov    0x8(%rsp),%rdx
  test   %r12d,%r12d
  jle    L328
  nopl   0x0(%rax,%rax,1)
L309:
  mov    (%rdx),%rax
  movsbl (%rax,%r13,1),%eax
  cmp    $0x2e,%al
  je     L157
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%esi
  lea    0x1(%rsi),%edi
  mov    %edi,0x10(%rsp,%rax,4)
  test   %esi,%esi
  jne    L156
L157:
  add    $0x8,%rdx
  cmp    %rdx,%r14
  jne    L309
L328:
  add    $0x1,%r13
  cmp    %r13,%rbx
  jne    L218
L160:
  mov    0x8(%rsp),%r13
  lea    0x48(%r13),%r12
L33:
  xor    %ebx,%ebx
L192:
  mov    %rbp,%rdi
  mov    $0x28,%edx
  xor    %esi,%esi
  call   <memset@plt>
  mov    0x0(%r13),%rdi
  movsbl (%rdi,%rbx,1),%eax
  cmp    $0x2e,%al
  je     L301
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%edx
  lea    0x1(%rdx),%esi
  mov    %esi,0x10(%rsp,%rax,4)
  test   %edx,%edx
  jne    L156
L301:
  movsbl 0x1(%rdi,%rbx,1),%eax
  lea    0x1(%rbx),%rsi
  cmp    $0x2e,%al
  je     L5
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%edx
  lea    0x1(%rdx),%r8d
  mov    %r8d,0x10(%rsp,%rax,4)
  test   %edx,%edx
  jne    L156
L5:
  movsbl 0x2(%rdi,%rbx,1),%eax
  lea    0x2(%rbx),%rdx
  cmp    $0x2e,%al
  je     L294
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%edi
  lea    0x1(%rdi),%r8d
  mov    %r8d,0x10(%rsp,%rax,4)
  test   %edi,%edi
  jne    L156
L294:
  mov    0x8(%r13),%rdi
  movsbl (%rdi,%rbx,1),%eax
  cmp    $0x2e,%al
  je     L233
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%r8d
  lea    0x1(%r8),%r9d
  mov    %r9d,0x10(%rsp,%rax,4)
  test   %r8d,%r8d
  jne    L156
L233:
  movsbl (%rdi,%rsi,1),%eax
  cmp    $0x2e,%al
  je     L25
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%r8d
  lea    0x1(%r8),%r9d
  mov    %r9d,0x10(%rsp,%rax,4)
  test   %r8d,%r8d
  jne    L156
L25:
  movsbl (%rdi,%rdx,1),%eax
  cmp    $0x2e,%al
  je     L57
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%edi
  lea    0x1(%rdi),%r8d
  mov    %r8d,0x10(%rsp,%rax,4)
  test   %edi,%edi
  jne    L156
L57:
  mov    0x10(%r13),%rdi
  movsbl (%rdi,%rbx,1),%eax
  cmp    $0x2e,%al
  je     L85
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%r8d
  lea    0x1(%r8),%r9d
  mov    %r9d,0x10(%rsp,%rax,4)
  test   %r8d,%r8d
  jne    L156
L85:
  movsbl (%rdi,%rsi,1),%eax
  cmp    $0x2e,%al
  je     L118
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%esi
  lea    0x1(%rsi),%r8d
  mov    %r8d,0x10(%rsp,%rax,4)
  test   %esi,%esi
  jne    L156
L118:
  movsbl (%rdi,%rdx,1),%eax
  cmp    $0x2e,%al
  je     L101
  sub    $0x30,%eax
  cltq
  mov    0x10(%rsp,%rax,4),%edx
  lea    0x1(%rdx),%esi
  mov    %esi,0x10(%rsp,%rax,4)
  test   %edx,%edx
  jne    L156
L101:
  add    $0x3,%rbx
  cmp    $0x9,%rbx
  jne    L192
  add    $0x18,%r13
  cmp    %r13,%r12
  jne    L33
  mov    $0x1,%eax
  jmp    L297
L156:
  xor    %eax,%eax
L297:
  mov    0x38(%rsp),%rdx
  sub    %fs:0x28,%rdx
  jne    L0
  add    $0x48,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L307:
  lea    0x10(%rsp),%rbp
  jmp    L58
L0:
  call   <__stack_chk_fail@plt>
```

assistant: ```c
bool isValidSudoku0(char **board, int rSize, int cSize) {
  int a[10];
  int space = sizeof(int) * 10;
  for (int i = 0; i < rSize; i++) {
    memset(a, 0, space);
    for (int j = 0; j < cSize; j++) {
      if (board[i][j] != '.')
        if (a[board[i][j] - '0']++)
          return false;
    }
  }
  for (int i = 0; i < cSize; i++) {
    memset(a, 0, space);
    for (int j = 0; j < rSize; j++) {
      if (board[j][i] != '.')
        if (a[board[j][i] - '0']++)
          return false;
    }
  }
  for (int row = 0; row < 9; row += 3)
    for (int col = 0; col < 9; col += 3) {
      memset(a, 0, space);
      for (int i = 0; i < 3; i++)
        for (int j = 0; j < 3; j++) {
          if (board[row + i][col + j] != '.')
            if (a[board[row + i][col + j] - '0']++)
              return false;
        }
    }
  return true;
}
```