STUPIDSID
Answer the following questions.
1 (a)
Explain the flag register of 8085 microprocessor.
4 M
1 (b)
What is REP prefix? How it functions for string instructions?
4 M
1 (c)
Explain the feature of pipeline and queue in 8086 architecture.
4 M
1 (d)
Explain the significance of HOLD, RESET and READY signals in 8086 processor.
4 M
1 (e)
For 8086 op-code fetch machine cycle explain the significance of each T-state.
4 M
2 (a)
Draw and explain the instruction template format of 8086 processor?
10 M
2 (b)
Explain programmable interrupt controller 8259-features and operation.
10 M
3 (a)
Explain 8086-8087 coprocessor configuration in maximum code of operation.
10 M
3 (b)
Explain the following 8086 instructions
(a) CMPSB (b) DIV AX (c) LOOPE again (d) REP SCASB (e) XLATB
(a) CMPSB (b) DIV AX (c) LOOPE again (d) REP SCASB (e) XLATB
10 M
4 (a)
Write a detailed note on the interrupt structure of 8086 processor.
6 M
4 (b)
What are the basic modes of operation of 8255. Explain with the format of control register.
4 M
4 (c)
Explain the need for DMA and modes DMA data transfer.
10 M
5 (a)
Explain the architecture of 8086 processor. What is the need for memory segmentation.
10 M
5 (b)
With the help of a neat flowchart/algorithm write a program in 8086 assembly to arrange a set of ten 8-bit numbers initialized in data segment in ascending order.
10 M
6 (a)
Write a brief note on programmable peripheral interface (PPI) IC-8255 and its modes of operation.
10 M
6 (b)
Using string instructions write a program in 8086 assembly to copy a block ten bytes initialized data segment to extra segment. Assume the necessary details.
10 M
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