Category : Alternate Operating Systems - Quarterdeck DesqView, CP/M, etc
Archive   : PCCAPP.ZIP
Filename : COUNT.CC

/*
* This file is part of the Choices Operating System
* Developed by: The TAPESTRY Parallel Computing Laboratory
* University of Illinois at Urbana-Champaign
* Department of Computer Science
* 1304 W. Springfield Ave.
* Urbana, IL 61801
*
* Copyright (c) 1987, 1988, 1989, 1990, 1991, 1992
* The University of Illinois Board of Trustees.
* All Rights Reserved.
*
* Author: Lee Lup Yuen ([email protected])
* Project Manager and Principal Investigator: Roy Campbell ([email protected])
*
* Funded by: NSF TAPESTRY Grant No. 1-5-30035, NASA ICLASS Grant
* No. 1-5-25469 and No. NSG1471 and AT&T Metronet Grant No. 1-5-37411.
*
* Permission to use, copy, modify, and distribute this software and
* its documentation for educational, research, and non-profit purposes
* is hereby granted provided that the above copyright notice, the
* original authors names, and this permission notice appear in all such
* copies and supporting documentation; that no charge be made for such
* copies; and that the name of the University of Illinois not be used
* in advertising or publicity pertaining to distribution of the
* software without specific prior written permission. Any entity
* desiring permission to incorporate this software into commercial
* products should contact the Computing Research Laboratory, Department
* of Computer Science, University of Illinois, 1304 W. Springfield
* Avenue, Urbana, IL 61801. The University of Illinois makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*/

#include "TimeoutTimer.h"
#include "TimeoutTimerStar.h"

// These are bitmaps for the 10 digits drawn with "bitmap". d0_bits to
// d9_bits are raster arrays defined in these files.
#include "Bitmaps/d0.xbm"
#include "Bitmaps/d1.xbm"
#include "Bitmaps/d2.xbm"
#include "Bitmaps/d3.xbm"
#include "Bitmaps/d4.xbm"
#include "Bitmaps/d5.xbm"
#include "Bitmaps/d6.xbm"
#include "Bitmaps/d7.xbm"
#include "Bitmaps/d8.xbm"
#include "Bitmaps/d9.xbm"

static char *digits [] = {d0_bits, d1_bits, d2_bits, d3_bits, d4_bits, d5_bits,
d6_bits, d7_bits, d8_bits, d9_bits};

void plotDigit (int i, unsigned char colour);
void plot (int row, int col, unsigned char colour);

int main (int, char **)
{
// Flash the digits 9 - 0 on the screen.
TimeoutTimerStar timer = new TimeoutTimer;
// Number of microseconds to wait between digits.
const delay = 5 * 1000000;
for (int i = 9; i >= 0; i--)
{
// Show digit i.
plotDigit (i, 0x70);
// Wait a while.
timer -> start (delay);
timer -> await ();
// Erase digit i.
plotDigit (i, 0x7);
}
}

void plotDigit (int i, unsigned char colour)
{
// Plot digit i on the screen with that colour.
for (int row = 0; row <= 19; row++)
for (int col = 0; col <= 4; col++)
{
unsigned char b = (unsigned char) digits [i][row * 5 + col];
for (int j = 0; j <= 7; j++)
{
if (b % 2) plot (row + 1, col * 8 + j + 20, colour);
b = b / 2;
}
}
}

void plot (int row, int col, unsigned char colour)
{
// Plot a box at row,col with that colour.
unsigned char *screen = (unsigned char *) 0xb8000;
screen [row * 160 + col * 2 + 1] = colour;
}