#include "vga.h"

void clearScreen(int bgColor)
{
	volatile short *vga = (short *)VGA_ADDR;
	long int colorAttr  = bgColor << 12;
	for (int i = 0; i < VGA_WIDTH * VGA_HEIGHT; i++) {
		vga[i] = colorAttr;
	}
}

void printChar(const char str, int color, int bgColor, int startX, int startY)
{
	volatile short *vga	   = (short *)VGA_ADDR;
	long int colorAttr	    = (bgColor << 4 | (color & 0x0f)) << 8;
	vga[80 * startY + startX] = colorAttr | str;
}

void printString(const char *str, int color, int bgColor, int startX,
		 int startY)
{
	volatile short *vga = (short *)VGA_ADDR;
	int i		    = 0;
	long int colorAttr  = (bgColor << 4 | (color & 0x0f)) << 8;
	while (*str) {
		vga[80 * startY + startX + i] = colorAttr | *str;
		str++;
		i++;
	}
}