user: What is the c source code of the assembly code below?

```asm
<findPath>:
  endbr64
  push   %rbp
  mov    %rsp,%rbp
  sub    $0x30,%rsp
  mov    %edi,-0x14(%rbp)
  mov    %esi,-0x18(%rbp)
  mov    %rdx,-0x20(%rbp)
  mov    %rcx,-0x28(%rbp)
  mov    %r8d,-0x2c(%rbp)
  mov    %r9d,-0x30(%rbp)
  cmpl   $0x0,-0x14(%rbp)
  js     L49
  mov    -0x14(%rbp),%eax
  cmp    -0x2c(%rbp),%eax
  jge    L49
  cmpl   $0x0,-0x18(%rbp)
  js     L49
  mov    -0x18(%rbp),%eax
  cmp    -0x30(%rbp),%eax
  jge    L49
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  cmp    %eax,0x10(%rbp)
  jg     L40
L49:
  mov    $0x0,%eax
  jmp    L3
L40:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%eax
  test   %eax,%eax
  jne    L0
  movl   $0x0,-0x8(%rbp)
  movl   $0x0,-0x4(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%esi
  mov    -0x14(%rbp),%eax
  lea    -0x1(%rax),%edi
  mov    -0x30(%rbp),%r9d
  mov    -0x2c(%rbp),%r8d
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  sub    $0x8,%rsp
  push   %rsi
  mov    %eax,%esi
  call   <findPath>
  add    $0x10,%rsp
  mov    %eax,-0x8(%rbp)
  mov    -0x4(%rbp),%edx
  mov    -0x8(%rbp),%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%esi
  mov    -0x14(%rbp),%eax
  lea    0x1(%rax),%edi
  mov    -0x30(%rbp),%r9d
  mov    -0x2c(%rbp),%r8d
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%rdx
  mov    -0x18(%rbp),%eax
  sub    $0x8,%rsp
  push   %rsi
  mov    %eax,%esi
  call   <findPath>
  add    $0x10,%rsp
  mov    %eax,-0x8(%rbp)
  mov    -0x4(%rbp),%edx
  mov    -0x8(%rbp),%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edi
  mov    -0x18(%rbp),%eax
  lea    -0x1(%rax),%esi
  mov    -0x30(%rbp),%r9d
  mov    -0x2c(%rbp),%r8d
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%rdx
  mov    -0x14(%rbp),%eax
  sub    $0x8,%rsp
  push   %rdi
  mov    %eax,%edi
  call   <findPath>
  add    $0x10,%rsp
  mov    %eax,-0x8(%rbp)
  mov    -0x4(%rbp),%edx
  mov    -0x8(%rbp),%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x20(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%edi
  mov    -0x18(%rbp),%eax
  lea    0x1(%rax),%esi
  mov    -0x30(%rbp),%r9d
  mov    -0x2c(%rbp),%r8d
  mov    -0x28(%rbp),%rcx
  mov    -0x20(%rbp),%rdx
  mov    -0x14(%rbp),%eax
  sub    $0x8,%rsp
  push   %rdi
  mov    %eax,%edi
  call   <findPath>
  add    $0x10,%rsp
  mov    %eax,-0x8(%rbp)
  mov    -0x4(%rbp),%edx
  mov    -0x8(%rbp),%eax
  cmp    %eax,%edx
  cmovge %edx,%eax
  mov    %eax,-0x4(%rbp)
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    -0x4(%rbp),%edx
  add    $0x1,%edx
  mov    %edx,(%rax)
L0:
  mov    -0x14(%rbp),%eax
  cltq
  lea    0x0(,%rax,8),%rdx
  mov    -0x28(%rbp),%rax
  add    %rdx,%rax
  mov    (%rax),%rdx
  mov    -0x18(%rbp),%eax
  cltq
  shl    $0x2,%rax
  add    %rdx,%rax
  mov    (%rax),%eax
L3:
  leave
  ret
```

assistant: ```c
int findPath(int i, int j, int **matrix, int **pathLen, int row, int col, int pre) {
  if (i < 0 || i >= row || j < 0 || j >= col || matrix[i][j] >= pre)
    return 0;
  if (pathLen[i][j] == 0) {
    int len = 0;
    int max = 0;
    len = findPath(i - 1, j, matrix, pathLen, row, col, matrix[i][j]);
    max = max > len ? max : len;
    len = findPath(i + 1, j, matrix, pathLen, row, col, matrix[i][j]);
    max = max > len ? max : len;
    len = findPath(i, j - 1, matrix, pathLen, row, col, matrix[i][j]);
    max = max > len ? max : len;
    len = findPath(i, j + 1, matrix, pathLen, row, col, matrix[i][j]);
    max = max > len ? max : len;
    pathLen[i][j] = max + 1;
  }
  return pathLen[i][j];
}
```