1. What is the integer value of the following expressions (give binary answers assuming integers are represented using 8 bits).

  a. ~!0
  b. ~~1
  c. 1|2
  d. 1||2

2. Write a C expression that is true when bit 3 of an integer x is 0.

3. If x is an int, write a snippet of C code that clears bit 2 of x if
   bit 1 is set, and otherwise flips bit 4.  No other bits of x should
   be changed when the snippet is completed.

4. What is the value of the ofllowing expressions assuming the 8 bit
   signed int x starts with the value 10111010?

   a. x << 4
   b. x >> 4
   c. x |= (1<<3)
   d. x ^= (0xF0)

5. How would you fix the following macro so that is does what the original
   author probably intended?

   #define PRODUCT(a,b) a*b

6. If x in an array of unsigned char's, write a macro that flips the n'th
   bit of x using the intel convention:

   byte 0  byte  1 byte   2
   b7..b0  b15..b8 b23..b16

7. Define the following structure using bit fields:

   left_direction : b0
   left_speed     : b1..b3
   right_direction: b4
   right_speed    : b5..b7