WorksheetsLearning Quiz
Total questions: 15
Worksheet time: 9mins
8085 is a 16 bit microprocessor.
True
False
The power supply voltage of 8085 microprocessor is
1V
2V
4V
None of the above
The address bus is represented as:
A0-A15
A1-A16
AD0-AD15
AD0-AD7
A8-A15
General purpose registers are:
U,V,W,X,Y,Z
B,C,D,E,H,L
No registers present
None of the above
The PC is 16-bit register because
it counts 16-bits at a time
it has to fetch two 8-bit data at a time
the address is of 16-bits
it was designer's choice
The address of the next instruction to be executed is stored in
stack pointer
accumulator
temporary register
none of the above
Following is the 16-bit register in 8085 microprocessor
temporary register
Accumulator
Stack pointer
none of the above
The instruction XRA A would result in
A=FF
A=11
A=00
none
The instruction MOV A,M would affect the following flags
carry
sign
zero
none
Which of the following registers can be combined to form a 16-bit register?
Register B and E
Register A and B
Register B and C
not possible in microprocessor
Flag register is affected by which of the following?
Data transfer instructions
Arithmetic instructions
Branching instructions
None
Find the status of all flags after execution of following instructions.
MVI A, 0FFH
MVI B, 01H
ADD B
HLT
S=1, Z=0, AC=1, P=0, CY=0
S=0, Z=1, AC=1, P=1, CY=1
Flags are not affected.
Syntax error
8085 microprocessor excecutes MVI A, 10 H instruction in (a) -T states.
In an 8085 instruction, how many bytes (size of instruction) are present?
Two or three
One only
One or two
One, two or three
Which one of the following data transfer is not possible in 8085?
Memory to accumulator
Accumulator to memory
Memory to memory
i/o to acumulator
