STUPIDSID
1(a)
Explain the following Intel 8086 assembly language instructions with example.(a) TEST (b) DAA(c ) STOS(d) SAR(e ) JC
10 M
1(b)
Explain the interrupt structure of 8085 microprocessor with neat diagram.
10 M
2(a)
Explain addressing modes of 8085 microprocessor with example.
10 M
2(b)
Explain assembler directives of 8086.
10 M
3(a)
Explain different bus arbitration techniques with their advantages and disadvantages.
10 M
3(b)
Write an assembly language program for 8086 to exchange the blocks of 1KB located at 0100H and 0200H using String Instructions.
10 M
4(a)
Explain the necessity of bus controller in 8086 maximum mode operation. Also explain 8288 bus controller in detail.
10 M
4(b)
What is segmented memory? State the advantages of it with reference to the 8086 microprocessor.
10 M
5(a)
Explain the concept of DMA. Show and explain an interfacing diagram of the 8086 with the 8237 DMA controller.
10 M
5(b)
Explain the operating modes of 8255 PPI. Also, explain the handshaking Operation for input and output in mode 1.
10 M
6(a)
Design an 8086 based system with the following specifications.
- (i) 8086 is in minimum mode(ii) 64 Kbyte EPROM using 52 KB devices(iii) 64 Kbyte RAM using 32KB devices.Draw the complete schematic of the design indicating address map.
10 M
6(b)
Explain the operation of IC 8259 with block diagram
10 M
Write short notes on any four of the following:-
7(a)
RS-232 serial interface standard
5 M
7(b)
Difference between memory mapped I/O and I/O mapped I/O
5 M
7(c )
IEEE 488 GPIB
5 M
7(d)
8284 clock generator
5 M
7(e )
String instructions in 8086
5 M
7(f)
Addressing modes of 8086.
5 M
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