dearsir i solve some i solve these but this is not confirm please helpme (4,5,6,
ID: 3610185 • Letter: D
Question
dearsir i solve some i solve these but this is not confirm please helpme (4,5,6,7)
Calculate thephysical memory address generated by the following segment offsetpairs
4. 4321:FFFF
5. FFFF:4321
6. FFEF:4421
7. 1080:0200
i. 74F0:2123
PhysicalAddress = Segment x10 + Offset
PhysicalAddress = 74F0 x10 + 2123
PhysicalAddress = 774F00 + 2123
PhysicalAddress = 77023h
ii. 0000:6727
PhysicalAddress = Segment x10 + Offset
PhysicalAddress = 0000 x10 + 6727
PhysicalAddress = 00000 + 6727
PhysicalAddress = 6727h
i. FFFF:4336
PhysicalAddress = Segment x10 + Offset
PhysicalAddress = FFFF x10 + 4336
PhysicalAddress = FFFF0 + 4336
PhysicalAddress = 104326h
To make 20bitphysical address we have to drop the carry bit so
PhysicalAddress = 04326h
Explanation / Answer
Calculate thephysical memory address generated by the following segment offsetpairs
all answers inhex
4. 4321:FFFF 43210+FFFF=5320F
5. FFFF:4321 FFFF0+4321=104311
6. FFEF:4421 FFEF0+4421=104311
7. 1080:0200 10800+200=10A00
i. 74F0:2123 74F00+2123=76F23
PhysicalAddress = Segment x10 + Offset
PhysicalAddress = 74F0 x10 +2123
PhysicalAddress = 774F00 + 2123
PhysicalAddress = 77023h
ii. 0000:6727 00000+6727=6727
PhysicalAddress = Segment x10 + Offset
PhysicalAddress = 0000 x10 + 6727
PhysicalAddress = 00000 + 6727
PhysicalAddress = 6727h
i. FFFF:4336 FFFF0+4336=104326
PhysicalAddress = Segment x10 + Offset
PhysicalAddress = FFFF x10 + 4336
PhysicalAddress = FFFF0 + 4336
PhysicalAddress = 104326h
To make 20bitphysical address we have to drop the carry bit so
PhysicalAddress = 04326h
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