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Microprocessor

Microprocessor
When an 8085 microprocessor is reset, the address bus contains

 002CH
 003CH
 0000H
 0043H

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Microprocessor
Which of the following instruction will never affect the zero flag?

 DCX Rp
 DCR R
 ORA R
 XRA R

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Microprocessor
Maximum number of I/O that can be addressed by the INTEL 8085 is

 65536
 256
 285
 512

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Microprocessor
How many 16-bit special purpose registers are present in 8085 microprocessor?

 6
 8
 16
 2

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Microprocessor
Which of the following is not a general purpose peripheral?

I/O port
Programmable CRT controller
Programmable interrupt controller
Programmable interval timer

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Microprocessor
The execution of RST n instruction causes the stack pointer to

 remain unaffected
None of these
 decrement by two
 increment by two

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