http://www.cs.wisc.edu/~bart/537/quizzes/quiz6.html
UNIVERSITY OF WISCONSIN-MADISON
Computer Sciences Department | ||
CS 537
Spring 1996 | Bart Miller | |
Quiz #6
Wednesday, March 27 |
Show how a virtual address gets mapped into a real address. Be sure to show
Draw and label a diagram to answer this question.
The Segment Table has 512K entries times 64 bits (8 bytes), so has a maximum size of 4 MB.
Each Page Table has 4G entries times 19 bits (rounded up to 24 bits or 3 bytes), so has a maximum size of 12 GB. Note that the extra bits in each PTE might be used for R/W control or valid bits.