DE2-115-FPGA-Pong/software/Pong_Code/Display.h

/*
 * Display.h
 *
 *  Created on: 03.12.2020
 *      Author: willy
 */
#ifndef DISPLAY_H_
#define DISPLAY_H_

#define COLS 12
#define ROWS 8

int screen[ROWS];

void bin(unsigned n)
{
    if (n > 1)
        bin(n >> 1);
    printf("%d", n & 1);
}


void draw() {
	int row,i,j;
	for (i=0 ; i<ROWS ; i++) {
		row = screen[i] | ((i+1)<<12); //send format: (4bits row indicator,12bits data)
		IOWR_ALTERA_AVALON_PIO_DATA(PIO_MATRIX_BASE, row);
	}
}

void draw_console() {
	int i;
	for (i = 0 ; i < ROWS ; i++) {
		bin(screen[i]);
		printf("\n");
	}
}

void set_pixel(int x, int y) {
	screen[y] = screen[y] & ~(1<<x) | (1<<x);
}

void reset_screen() {
	int i;
	for (i=0;i<ROWS;i++) {
		screen[i] = 0;
	}

}



#endif /* DISPLAY_H_ */