#include <os.h>

#include "charmap_8x12.h"

void setPixel(int x, int y, unsigned int color)
{
	static unsigned char *scr = (unsigned char *) 0xa4000100;
	if(x >= 0 && x < SCREEN_WIDTH && y >= 0 && y < SCREEN_HEIGHT)
		scr[y*SCREEN_WIDTH/2+x/2]=x&1? (scr[y*SCREEN_WIDTH/2+x/2]&0xF0)+color : (scr[y*SCREEN_WIDTH/2+x/2]&0x0F)+(color<< 4);
}

void putChar(int x, int y, char ch)
{
  int i, j, pixelOn;
  for(i = 0; i < CHAR_HEIGHT; i++)  
  {
    for(j = 0; j < CHAR_WIDTH; j++) 
    {
      pixelOn = charMap_ascii[(unsigned char)ch][i] << j ;  
      pixelOn = pixelOn & 0x80 ;  
      if (pixelOn) {
        setPixel(x + j, y + i, 0); 
      } else {
        setPixel(x + j, y + i, 15);
      } 
    }
  } 
}

void clrscr()
{
	int i,j;
	for(i = 0; i < SCREEN_WIDTH; i ++)
		for(j = 0; j < SCREEN_HEIGHT; j ++)
			setPixel(i, j, 0xF);
}