1. What is the value of the following expressions:

   -3 && 10
   -3 & 10
   !3 || 10
   ~3 |  10

2. Write a C expression that is true if and only if bit 3 of x is 0

3. Write  C code that will flip bit 3 of y if (and only if) bit 1 of x is 0.

4. What will X contain after these two statements?

   unsigned char X = -5; 
   X ^= (X>>4);

5. Fix the following macro definition:

#define SUM(x,y) x+y

6. Define a macro HI4(x) which gives the highest nibble (4 bits) of a byte. 
   For example HI4(0x86) should be 0x8.


7. Make a bitfield representation of the following:

    JJJJJJJJJYYYYYYYYYYYYYYMMMMDDDDD
             <- 14 bits  ->

    J=Junk
    Y=Year bits
    M=Month bits
    D=Day bits

8.  What is the value of x?

    short x=-3;
    ((char*)&x)[1]=0;

    a. On intel
    b. On power pc

9.  Get the exponent part of a float (bits 23-30) using:
    a. AND OR and/or shifts
    b. casts and subscripting
    c. a union

10. Write a C function,

    int GetBit(BYTE8 bits[], int index) 

    which returns 0 or 1 depending on the value of the given bit.