Chapter 2 Problems

1) Since a selector is only 16 bits long, how many selectors are possible, assuming that the GDT and the LDT have an unlimited size and the RPL is always zero?

Hint

Solution

2) Assume that the GDT contains the following information:

In real mode, the letter 'A' is displayed in the upper-left corner of the text screen by storing a 'A' in the logical address b800:0000. In protected mode, which logical address could be used to display the same letter 'A' using the above GDT?

Hint

Solution

Back to top