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Microprocessor

Microprocessor
Total number of instructions in 8085 microprocessor assembly language is

 246
 247
 244
 245

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Microprocessor
Which one of the following statement is false?

 A microprocessor has bi-directional address bus
 A microprocessor has unidirectional address bus
 A microprocessor has bi-directional data bus
 A microprocessor has an ALU

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Microprocessor
A bus connected between the CPU and main memory that permits transfer of information between main memory and the CPU is known as

 Control bus
 Memory bus
 Address bus
 DMA bus

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Microprocessor
The address bus of any microprocessor is always

 None
 Bi-directional
 Either unidirectional or bi-directional
 Unidirectional

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Microprocessor
The 8085 microprocessor enters into bus idle machine cycle whenever

 RST 7.5 is recognized
 INTR interrupt is recognized
None of these
 DAD RP instruction is executed

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Microprocessor
Which of the following instruction is not possible in 8085?

 POP PSW
 POP 30 H
 POP B
 POP D

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