stack.c

/***************************************************************************
                          stack.c  -  description
                             -------------------
    begin                : Sat Feb 14 2004
    copyright            : (C) 2004 by Dynacube Team
    email                : 
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include "common/ds/stack.h"
 
DD stack[STCK_SIZE];

DW stck_ptr = 0;

SDB push(DD val)
{
        if(stck_ptr == STCK_SIZE)
                return -1;
        else
                stack[stck_ptr++] = val;
}
 
SDD pop()
{
        if(stck_ptr == 0)
                return -1;
        return stack[--stck_ptr];
}

void printStack()
{
        DW i = stck_ptr;
        printf("\nStack Print\n");
        
        while(i > 0)
        {
                printf("(%d) %x ",i-1,stack[i-1]);
                i--;
        }
}

---