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Microprocessor

Microprocessor
Which of the following is not treated as hexadecimal constant by assembler in 8085?

64 H
6 AFH
234
45 H

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

 POP PSW
 POP D
 POP 30 H
 POP B

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Microprocessor
Which memory has read operation, byte erase, byte write and chip erase?

UVEPROM
Both B and C
EEPROM
RAM

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Microprocessor
A sequence of two registers that multiplies the content of DE register pair by two and stores the result in HL register pair (in 8085 assembly language) is

 XCHG & DAD B
 XTHL & DAD H
 PCHL & DAD D
 XCHG & DAD H

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Microprocessor
In microprocessor based system I/O ports are used to interface

 the I/O devices and memory chips
 all the I/O devices
 the O/P devices only
 the I/P device only

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Microprocessor
In 8086, _______ uses a mechanism known as an instruction stream queue to implement a pipeline architecture.

 Execution Unit (EU)
 Bus Interface Unit (BIU)
 Both ‘b’ and ‘c’
 None of these

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