user: 提供的汇编代码用C语言表示会是什么样子：

```asm
<flipBoard>:
  endbr64
  push   %r15
  push   %r14
  push   %r13
  push   %r12
  push   %rbp
  push   %rbx
  sub    $0x28,%rsp
  mov    %rdi,%r15
  mov    %rdi,0x8(%rsp)
  mov    %esi,%edi
  mov    %esi,0x4(%rsp)
  mov    %r9d,(%rsp)
  mov    %r8d,%r14d
  movsbl %dl,%r12d
  sub    $0x61,%r12d
  movsbl %cl,%r13d
  sub    $0x61,%r13d
  cmp    $0x42,%r8b
  mov    $0x42,%ebx
  mov    $0x57,%eax
  cmove  %eax,%ebx
  mov    %r13d,%edx
  mov    %r12d,%esi
  call   <positionInBounds@plt>
  mov    %eax,%ecx
  movslq %r12d,%rax
  lea    (%rax,%rax,2),%rdx
  lea    (%rax,%rdx,4),%rax
  lea    (%r15,%rax,2),%rdx
  movslq %r13d,%rax
  cmpb   $0x55,(%rdx,%rax,1)
  je     L106
L98:
  add    $0x28,%rsp
  pop    %rbx
  pop    %rbp
  pop    %r12
  pop    %r13
  pop    %r14
  pop    %r15
  ret
L106:
  add    (%rsp),%r12d
  add    0x60(%rsp),%r13d
  movslq %r12d,%rax
  lea    (%rax,%rax,2),%rdx
  lea    (%rax,%rdx,4),%rax
  mov    0x8(%rsp),%rsi
  lea    (%rsi,%rax,2),%rdx
  movslq %r13d,%rax
  cmp    %bl,(%rdx,%rax,1)
  jne    L98
  mov    (%rsp),%eax
  lea    (%rax,%r12,1),%ebx
  mov    %r13d,%ebp
  add    0x60(%rsp),%ebp
  cmp    $0x1,%ecx
  jne    L98
  movslq %eax,%rcx
  mov    %rcx,0x18(%rsp)
  lea    (%rcx,%rcx,2),%rax
  lea    (%rcx,%rax,4),%rdx
  movslq 0x60(%rsp),%rax
  lea    (%rax,%rdx,2),%rax
  mov    %rax,0x10(%rsp)
  movslq %ebx,%rax
  lea    (%rax,%rax,2),%rdx
  lea    (%rax,%rdx,4),%rdx
  movslq %ebp,%rax
  lea    (%rax,%rdx,2),%r15
  add    %rsi,%r15
  jmp    L48
L7:
  mov    (%rsp),%eax
  neg    %eax
  cltq
  lea    (%rax,%rax,2),%rdx
  lea    (%rax,%rdx,4),%rdx
  mov    0x60(%rsp),%eax
  neg    %eax
  cltq
  lea    (%rax,%rdx,2),%rdx
  movslq %ebx,%rax
  sub    0x18(%rsp),%rax
  lea    (%rax,%rax,2),%rcx
  lea    (%rax,%rcx,4),%rcx
  mov    %ebp,%eax
  sub    0x60(%rsp),%eax
  cltq
  lea    (%rax,%rcx,2),%rax
  add    0x8(%rsp),%rax
L18:
  sub    (%rsp),%ebx
  sub    0x60(%rsp),%ebp
  mov    %r14b,(%rax)
  add    %rdx,%rax
  cmp    %ebx,%r12d
  jne    L18
  cmp    %ebp,%r13d
  jne    L18
  jmp    L98
L33:
  add    (%rsp),%ebx
  add    0x60(%rsp),%ebp
  add    0x10(%rsp),%r15
  cmp    $0x1,%eax
  jne    L98
L48:
  mov    %ebp,%edx
  mov    %ebx,%esi
  mov    0x4(%rsp),%edi
  call   <positionInBounds@plt>
  movzbl (%r15),%edx
  cmp    %r14b,%dl
  je     L7
  cmp    $0x55,%dl
  jne    L33
  jmp    L98
```

assistant: ```c
void flipBoard(char board[][26], int n, char row, char col, char colour, int deltaRow, int deltaCol) {
  int rowNum = row - 'a';
  int colNum = col - 'a';
  bool q;
  char anticolour = 'B';
  if (colour == 'B')
    anticolour = 'W';
  bool judge = positionInBounds(n, rowNum, colNum);
  if (board[rowNum][colNum] == 'U') {
    rowNum = rowNum + deltaRow;
    colNum = colNum + deltaCol;
    if (board[rowNum][colNum] == anticolour) {
      rowNum = rowNum + deltaRow;
      colNum = colNum + deltaCol;
      for (; judge == true; rowNum = rowNum + deltaRow, colNum = colNum + deltaCol) {
        judge = positionInBounds(n, rowNum, colNum);
        if (judge == false)
          q = false;
        if (board[rowNum][colNum] == colour) {
          q = true;
          judge = false;
          do {
            rowNum = rowNum - deltaRow;
            colNum = colNum - deltaCol;
            board[rowNum][colNum] = colour;
          } while (rowNum != row - 'a' + deltaRow || colNum != col - 'a' + deltaCol);
        } else if (board[rowNum][colNum] == 'U') {
          q = false;
          judge = false;
        }
      }
    } else
      q = false;
  } else
    q = false;
}
```