gistfile1.txt

    public static void main(String[] args) {
        int accumulator = 0;
        byte b = 0;
        int nbBitsUsed = 100;
        /* classic version */
        while (nbBitsUsed >= 8) { /* each while test is a branch */
            accumulator <<= 8;
            accumulator += b++;
            nbBitsUsed -= 8;
        }
        System.out.println(accumulator);
        System.out.println(b);
        System.out.println(nbBitsUsed);
        
        System.out.println();
        
        accumulator = 0;
        b = 0;
        nbBitsUsed = 100;
        int nbBytesUsed = nbBitsUsed >> 3;
        int ptr = 0;
        nbBitsUsed &= 7;
        ptr += nbBytesUsed;
        accumulator = ptr;
        System.out.println(accumulator);
        System.out.println(b);
        System.out.println(nbBitsUsed);
    }