In the next two problems, use the computer described in Appendix C and Chapter 2. The program counter is at 42 hex, the main memory address 42 hex holds the value 13 hex, and the main memory address 43 hex holds the value 72 hex. What is the value of the program counter in hex after the current instruction executes?

7. Another program is loaded into the computer. Now the program counter is at 42 hex, and in main memory address 42 hex has the value B0 hex and main memory address 43 hex has the value 4A hex. What is the value of the program counter in hex after the current instruction executes?

8. Perform a 4-bit left circular shift (also known as rotation) on the bit pattern 1100. Note that this is the same as performing a left rotation four times.

9. Perform a 4-bit left circular shift on the bit pattern 110000:

10. Perform a 4-bit left circular shift on the bit pattern 11000000: