How to decode the Nintendo logo from gameboy?

Question

I\'ve tried to decode the following bitmap using the background pallete scheme described at http://imrannazar.com/GameBoy-Emulation-in-JavaScript:-Graphics

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Answer 1

In addition to the answer by PBurggraf, here is a snippet of my code that I used to check my understanding of it.

static const uint8_t data[] = {
    0xCE, 0xED, 0x66, 0x66, 0xCC, 0x0D, 0x00, 0x0B, 0x03, 0x73, 0x00, 0x83,
    0x00, 0x0C, 0x00, 0x0D, 0x00, 0x08, 0x11, 0x1F, 0x88, 0x89, 0x00, 0x0E,
    0xDC, 0xCC, 0x6E, 0xE6, 0xDD, 0xDD, 0xD9, 0x99, 0xBB, 0xBB, 0x67, 0x63,
    0x6E, 0x0E, 0xEC, 0xCC, 0xDD, 0xDC, 0x99, 0x9F, 0xBB, 0xB9, 0x33, 0x3E,
};

for(int y=0; y<8; ++y)
{
    int i = ((y/2)%2)+(y/4)*24;
    for(int x=0; x<12; ++x,i+=2)
    {
        const uint8_t nibble = (y%2) ? (data[i]&0xF) : (data[i]>>4);
        for(int b=4; b--;) std::cout << (((nibble>>b)&1) ? "*" : " ");
    }
    std::cout << std::endl;
}

It outputs:

**   ** **                             **       
***  ** **        **                   **       
***  **          ****                  **       
** * ** ** ** **  **  ****  ** **   *****  **** 
** * ** ** *** ** ** **  ** *** ** **  ** **  **
**  *** ** **  ** ** ****** **  ** **  ** **  **
**  *** ** **  ** ** **     **  ** **  ** **  **
**   ** ** **  ** **  ***** **  **  *****  **** 

Hope it helps someone.