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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 2 bytes
 1 bytes
 3 bytes
 4 bytes

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Microprocessor
Which of the following is a valid integer constant?

127
127
127
125 + 3

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Microprocessor
A field programmable ROM is called

 FPROM
 FROM
 PROM
 MROM

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

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

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Microprocessor
SPHL instruction copies the content of H-L register pair to the _________.

 B-C
 PSW
 D-E
 Stack Pointer

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Microprocessor
If the number of address bits in a memory is reduced by 2 and the addressability is doubled, the size of the memory (i.e., the number of bits stored in the memory)

Doubles
Increases by 2^(address bits)/addressability
Halves
Remains unchanged

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