#define __LIBRARY__
#include<stdio.h>
#include<unistd.h>
#include<errno.h>
#include <stdlib.h>
#include <assert.h>
#define vga_graph_memstart 0xA0000
#define vga_graph_memsize 64000
#define cursor_side 6
#define vga_width 320
#define vga_height 200

int i, j, x_pos = 20, y_pos = 20;
char* p = vga_graph_memstart;

_always_inline _syscall0(int, init_graphics)

void test_graphics() {
	init_graphics();
	for (i = 0; i < vga_graph_memsize; i++)
		*p++ = 3;
	for (i = x_pos - cursor_side; i <= x_pos + cursor_side; i++)
		for (j = y_pos - cursor_side; j <= y_pos + cursor_side; j++)
		{
			p = (char*)vga_graph_memstart + j * vga_width + i;
			*p = 12;
		}
}
int main(void)
{
	test_graphics();
	return 0;
}