BCA 2nd Semester
Microprocessor & Computer Architecture Board Question Paper 2021

Explain the addressing modes of 8085 with suitable example.

Draw the timing diagram for MVI A, 35H and explain in brief.

What do you mean by instruction mapping? Explain how to convert an instruction code to a microinstruction address.

Define stack. Explain the stack organization.

Explain the arithmetic pipeline with example.

Explain the following instructions
a) LDA 7050H
b) CPI 35H
c) PUSH B

Define the term mnemonics, instruction cycle and machine cycle. There are two tables holding twenty data whose starting address is 3000H and 3020H respectively. Write a program to add the content of first table with the content of second table having same array index. Store sum and carry into the third and fourth table indexing from 3040H and 3060H respectively.

For the expression
Y= (A + B) * (C+D)
Write down the code for one address, two address and three address instruction formats.

What is parallel processing? Explain the benefits of parallel processing. Explain the classifications of parallel processing by M. J. Flynn.