Question

Page 4 of 5 The page table in Fig. 3 shows the mapping between 64-KB virtual address space and 32-KB physical address space (the page size is 4 KB), adsacs Answer the following questions. Virtual BOK-64KX 56K-60K-X 52K-56K 48K-52K 44K-48K (1) Compute virtual page number and offset for 8800, 10000, 22000, and Vital page X 27000. 7 Physical 36K-40K 32K-36K X 28K-32K X 24K-28KX 20K-24K3 16K-20K 4 12K-16Kl O address 28K-32K 24K-28K 20K-24K 6K-20K 12K-16K 8K-12K 4K-8k 8K-12K 6 OK-4K 2 Page frame Fig.3 (2) Compute the physical address for the virtual addresses 8800,10000, 22000, and 27000.

Answer 1

Given : virtual addses Space-G4kA fuge size 48 physical addness Sface 3F8 嶉fage Size and frame Size must be in wens of 2 highe onde) (a-n) bits ane used fo fage numbe no of fages.HFO C o-) L+ compoteng Page numbel and offst fon vitual addsess: mn6 1224 hiJhen orden 4 bits ane urd fon Page numbe ) 3300 Pase nunbyed ottset

of 3) 2.2000 Pase numbes) foxnumben 5 Oftset 1520 () 23000r Pascnumbe offet - offset-2424 osical adastess shich contain faer nunben anal offset. (ooc taile Contains sstame nomb and fage nube used as an pasc numben-ζ Andes fonl fame nb mane num ben λ offset togethen ane physical addiess ohich refens to actual fgr ohich s fshame of main mxeni

computin phicl aldSJogicel adieisi Ses C) 8800 Physical address fame no X㎏esie toffst. 6x4지014 +608 F 24376 6o8 Physical addnes 25184 a) looos. fname n.of fase is 6x4 x lO14 1808 (3) 2200o fase numbe offset 120 fnemns toy fase 3 is3 12288+1520 hsical 13808 4)2000 fame no.fan fase s is, Page s not map cath any fname. so cJe cannot calculate fhssical addJTes