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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 2 bytes
 4 bytes
 1 bytes
 3 bytes

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Microprocessor
In 8086 the number of bytes which can be addressed directly is about

one million
1000
10000
100000

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Microprocessor
Which of the data transfer is not possible in microprocessor

 I/O device to accumulator
 memory to memory
 accumulator to memory
 memory to accumulator

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Microprocessor
In order to complement the lower nibble of accumulator one can use

 CMA
 ORI 0FH
 XRI 0FH
 ANI 0FH

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Microprocessor
Circuit A is a 1-bit adder; circuit B is a 1 bit multiplier.[Hint: Construct the truth table for the adder and the multiplier]

Circuit A has more gates than circuit B
Circuit B has more gates than circuit A
Circuit A has the same number of gates as circuit B
None of these

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Microprocessor
The number of interrupt lines in 8085 is

2
3
5
4

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