user: 请将以下的汇编代码转换成C语言代码:

```asm
<gridsort>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  mov    %rdi,-0x18(%rbp)
  mov    %esi,%ecx
  mov    %edx,%eax
  mov    %ecx,%edx
  mov    %dl,-0x1c(%rbp)
  mov    %al,-0x20(%rbp)
  movsbq -0x1c(%rbp),%rax
  imul   $0x5a,%rax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  movsbl -0x20(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L69
  mov    $0x0,%eax
  jmp    L0
L69:
  movb   $0x0,-0x1(%rbp)
  movb   $0x1,-0x3(%rbp)
  jmp    L58
L9:
  movsbq -0x1c(%rbp),%rax
  imul   $0x5a,%rax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  movsbl -0x20(%rbp),%eax
  movsbl -0x3(%rbp),%edx
  movslq %edx,%rcx
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  add    %rsi,%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L107
  movb   $0x0,-0x2(%rbp)
  movzbl -0x1c(%rbp),%edx
  mov    $0x56,%ecx
  mov    %ecx,%eax
  imul   %dl
  shr    $0x8,%ax
  sar    $0x7,%dl
  sub    %edx,%eax
  mov    %eax,%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  mov    %al,-0x5(%rbp)
  jmp    L63
L10:
  movzbl -0x20(%rbp),%edx
  mov    $0x56,%ecx
  mov    %ecx,%eax
  imul   %dl
  shr    $0x8,%ax
  sar    $0x7,%dl
  sub    %edx,%eax
  mov    %eax,%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  mov    %al,-0x4(%rbp)
  jmp    L131
L19:
  movsbq -0x5(%rbp),%rax
  imul   $0x5a,%rax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  movsbl -0x4(%rbp),%eax
  movsbl -0x3(%rbp),%edx
  movslq %edx,%rcx
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  add    %rsi,%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  jne    L29
  movzbl -0x2(%rbp),%eax
  add    $0x1,%eax
  mov    %al,-0x2(%rbp)
L29:
  movzbl -0x4(%rbp),%eax
  add    $0x1,%eax
  mov    %al,-0x4(%rbp)
L131:
  movsbl -0x4(%rbp),%ecx
  movzbl -0x20(%rbp),%edx
  mov    $0x56,%esi
  mov    %esi,%eax
  imul   %dl
  shr    $0x8,%ax
  sar    $0x7,%dl
  sub    %edx,%eax
  movsbl %al,%eax
  lea    0x1(%rax),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cmp    %eax,%ecx
  jl     L19
  movzbl -0x5(%rbp),%eax
  add    $0x1,%eax
  mov    %al,-0x5(%rbp)
L63:
  movsbl -0x5(%rbp),%ecx
  movzbl -0x1c(%rbp),%edx
  mov    $0x56,%esi
  mov    %esi,%eax
  imul   %dl
  shr    $0x8,%ax
  sar    $0x7,%dl
  sub    %edx,%eax
  movsbl %al,%eax
  lea    0x1(%rax),%edx
  mov    %edx,%eax
  add    %eax,%eax
  add    %edx,%eax
  cmp    %eax,%ecx
  jl     L10
  cmpb   $0x8,-0x2(%rbp)
  jne    L107
  movsbq -0x1c(%rbp),%rax
  imul   $0x5a,%rax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rcx
  movsbl -0x20(%rbp),%eax
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  lea    (%rcx,%rax,1),%rdx
  movzbl -0x3(%rbp),%eax
  mov    %al,(%rdx)
  movb   $0x1,-0x2(%rbp)
  jmp    L78
L116:
  movzbl -0x2(%rbp),%eax
  cmp    -0x3(%rbp),%al
  je     L39
  movsbq -0x1c(%rbp),%rax
  imul   $0x5a,%rax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  movsbl -0x20(%rbp),%eax
  movsbl -0x2(%rbp),%edx
  movslq %edx,%rcx
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  add    %rsi,%rax
  add    %rcx,%rax
  movzbl (%rax),%eax
  test   %al,%al
  je     L39
  movsbq -0x1c(%rbp),%rax
  imul   $0x5a,%rax,%rdx
  mov    -0x18(%rbp),%rax
  lea    (%rdx,%rax,1),%rsi
  movsbl -0x20(%rbp),%eax
  movsbl -0x2(%rbp),%edx
  movslq %edx,%rcx
  movslq %eax,%rdx
  mov    %rdx,%rax
  shl    $0x2,%rax
  add    %rdx,%rax
  add    %rax,%rax
  add    %rsi,%rax
  add    %rcx,%rax
  movb   $0x0,(%rax)
  movb   $0x1,-0x1(%rbp)
L39:
  movzbl -0x2(%rbp),%eax
  add    $0x1,%eax
  mov    %al,-0x2(%rbp)
L78:
  cmpb   $0x9,-0x2(%rbp)
  jle    L116
L107:
  movzbl -0x3(%rbp),%eax
  add    $0x1,%eax
  mov    %al,-0x3(%rbp)
L58:
  cmpb   $0x9,-0x3(%rbp)
  jle    L9
  movsbl -0x1(%rbp),%eax
L0:
  pop    %rbp
  ret
```

assistant: ```c
int gridsort(char grid[9][9][10], char m, char n) {
  if (grid[m][n][0])
    return 0;
  char i, j, k, l, f = 0;
  for (k = 1; k < 10; ++k)
    if (grid[m][n][k]) {
      l = 0;
      for (i = 3 * (m / 3); i < 3 * (m / 3 + 1); ++i)
        for (j = 3 * (n / 3); j < 3 * (n / 3 + 1); ++j)
          if (!grid[i][j][k])
            l++;
      if (l == 8) {
        grid[m][n][0] = k;
        for (l = 1; l < 10; ++l)
          if (l != k)
            if (grid[m][n][l])
              grid[m][n][l] = 0, f = 1;
      }
    }
  return f;
}
```