I have an exercise which is unclear to me. The exercise is about paging(operating system).
e. Translate into physical addresses the one(s) which are both legal and in memory.
f. What happens when a logical address is not legal? And when it is not in memory?
So far I have tried something this:
a and b) Page size = frame size = $2^7$
c) Numbers of frames = $2^8$
d) 9th addr. of page 0
logical address = (128*0)+9 = 9 it is in mem and valid physical mem = (128*4)+9 = 521 it is in mem and valid 13th address of page 1 logical = 128*1 + 13 = 141 which is valid but not in mem phsical mem = 128*
I am having the issue to calculate the logical address and physical address. How should these be calculated?
I don't know how to calculate point
d, e and f.
Please, someone, help me.