I have a question. I "Googled" it many times but could not find the solution or any method to solve it.
On a system using simple segmentation, the segment table is as follows (All values are in decimal):
| Segment | Base Register Value | Limit Register Value | |---------|---------------------|----------------------| | 0 | 3000 | 1024 | | 1 | 8192 | 1208 | | 2 | 1000 | 1200 | | 3 | 5000 | 2048 |a) Draw a memory allocation chart showing all segments.
b) Compute the physical addresses corresponding to the following segment+offset logical addresses (if the address generates a fault, indicate):
0+1200,1+500,3+1024.c) Compute the logical segment+offset addresses corresponding to the following physical addresses (if the address generates a fault, indicate):
9000,50,1200.
Here are the answers; I think you will understand by taking a careful look at them:
a)
| Main Memory | |
|-------------|--------------|
| 0 | |
| | Segment 2 |
| 1000 | |
| | unallocated |
| 2200 | |
| | unallocated |
| 3000 | |
| | Segment 0 |
| 4024 | |
| | unallocated |
| 5000 | |
| | Segment 3 |
| 7048 | |
| | unallocated |
| 8192 | |
| | Segment 1 |
| 9208 | |
| ... | unallocated |
b) 0+1200 --> 4200, 1+500 --> 8692, 3+1024 --> 6024.
c) 9000 --> 1+808, 50 --> fault, 1200 --> 2+200.