Alright, so basically I am to create a tic tac toe game in pseudocode. Which sucks because I can't see output. Anyways,

/*
 *Program by: Cory
 *Program: Tic Tac Toe game
 *
 */
Module Main()
Boolean player = true
Constant Integer ROWS = 3, COLS = 3
Declare String values[ROWS][COLS] = "*", "*", "*",
                                "*", "*", "*",
                                "*", "*", "*"

Call Module getIntro()
Call Module showBoard(values[][], ROWS, COLS)
Call Module playGame(values[][], COLS, ROWS, player)
End Module

Module getIntro()
    Display "Hello, this is a simple tic tac toe game."
    Display "It will rotate turns between players one and two,"
    Display "While 3,3 would be the bottom right."
    Display "Player 1 is X and player 2 is O"
 End Module

Module showBoard(String values[][], Integer rows, Integer cols) 
  Declare Integer row, col
 For row = 0 to rows - 1
    For col = 0 to cols - 1
        Display values[rows][cols]
    End For
 End For
 End Module

 Module playGame(String values[][], Integer cols, Integer rows, Boolean  player) //places moves, checks for already placed moves

     Declare Integer row, col   
player = true
For row = 0 to rows - 1
    For col = 0 to cols -1
        If (player == true)
            Display "First player's turn, please input your move"
            Input values[row][col]
            if (checkMove(values[][], rows, cols) == false)
                Display "Invalid move, please try again"
                Display "First player's turn again, please input your move"
                Input values[row][col]
            End If
            values[row][col] = "X"  
            showBoard(values[row][col], rows, cols)
            checkWin()
            player = false
        Else If (player == false)
            Display "Second player's turn, please input your move"
            Input values[row][col]
            if (checkMove(values[][], rows, cols) == false)
                Display "Invalid move, please try again"
                Display "Second player's turn again, please input your move"
                Input values[row][col]
            End If  
            values[row][col] = "O"
            showBoard(values[row][col], rows, cols)
            checkWin()
            player = true
    End For
    End For
   End Module

Function Boolean checkMove(String values[][], Integer cols, Integer rows)
Declare Integer row, col
For row = 0 to rows - 1
    For col = 0 to cols - 1
        if (values[row][col] != "*")
            Display "Player has already placed a move there"
        End If
    End For
End For
return false
End Function

Module checkWin()
checkRow(values[][], 3)
checkCol(values[][], 3)
checkDiagonal(values[][], 3, 3)
 End Module

Module checkRow(String values[][], Integer rows) //checks horizontal win
Declare Integer row, col
    For row = 0 to rows - 1
        if (values[row][0] == "X")
            Display "Player one has won!"
            //player1Win = true
        Else if (values[row][0] == "O")
            Display "Player two has won!"
            //player1Win = false
        End If
    End For
End Module

Module checkCol(String values[][], Integer cols) //checks vertical win
Declare Integer row, col
    For col = 0 to cols -1
        if (values[0][col] == "X")
            Display "Player one has won!"
            //player1Win = true
        Else if (values[0][col] == "O")
            Display "Player two has won!"
            //player1Win = false
        End If
    End For
 End Module

 Module checkDiagonal(String values[][], Integer cols, Integer rows, Boolean player1Win) //checks Diagonal win

So 1) please look over my code and tell me if I'm doing something wrong or if there's a way I can make it look better 2) I need help checking for diagonal wins. 3) checking for ties