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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 1 bytes
 4 bytes
 2 bytes
 3 bytes

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Microprocessor
In an 8085 microprocessor based system, the contents of SP are 1000H, PUSH B instruction will transfer the contents of registers B & C respectively for memory locations

 1000 H and 0FFF H
 1000 H and 1001 H
 0FFF H and 0FFE H
 0FFE H and 0FFF H

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Microprocessor
What is used to access 16-bit data in 8086?

 Memory Banking.
 Pipeline architecture.
None of these
 Data Banking.

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Microprocessor
At the beginning of a fetch cycle, the contents of the program counter are

 transferred to memory address register .
 transferred to memory data register.
 incremented by one.
 transferred to address bus.

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Microprocessor
Because we wish to allow each ASCII code to occupy one location in memory, most memories are __________ addressable.

DOUBLEWORD (32 bits)
BYTE
WORD (16 bits)
NIBBLE

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Microprocessor
The addressing mode in instruction PUSH B is

 direct
 register
 immediate
 register indirect

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