These Hsc cs Important Questions are very important for HSC students of Computer Science. The instruction set and programming of 8085 this CHP have the highest weightage in CS part 2.
The last question for 5 marks (a total of 2 questions) is coming from this chapter only. So Hsc cs Important Questions help you to cover.
You have to be good practice 8085 instruction sets and neat labeled diagrams of 8085 mentioned below. don’t forget to prepare last moment notes for the following questions. It will really help you a day before the exam.
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Q1 Explain the conditional CALL instruction of Intel 8085
Q2 Draw the labeled internal block diagram of the 8085 Microprocessor
Q3 Explain the following instruction with a suitable example (99% for 3 marks–Any 3 will come)
1) LDAX
2) XCHG
3) DAD
4) DAA
5) LHLD
6) CMC
7) RAR
8) XRA M / XRA C
9) SUB C
10) CMA
11) ANI ACH
12) INR A
13) CMP C
14) LDA
15) SHLD addr
16) RRC
17) PUSH
18) RST
19) LXI H
20) CLK (OUT)
Q4 Explain the following (99% for 3 marks–Any 3 will come)
1) Machine Cycle
2) Instruction Cycle
3) T-states
4) Accumulator
5) Program counter
6) Stack Pointer
Q5 The accumulator in 8085 microprocessor contains data 71H and register E contains data 39H. what will be the contents of an accumulator in Hexadecimal after the execution of the following instructions independently
a) ADD E
b) ORA E
c) RRC
Q6 8085 Programs
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