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Microprocessor

Microprocessor
The addressing mode in instruction PUSH B is

 register
 immediate
 register indirect
 direct

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Microprocessor
Which general register or general register pair is incremented/decremented by 2 during PUSH and POP instructions?

 Stack Pointer.
 D-E.
 Program Counter.
 H-L.

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Microprocessor
Each instruction in assembly language program has the following fields:Lable fieldMnemonic fieldOperand fieldComment fieldThe correct sequence of these fields is?

2, 1, 3, 4
2, 1, 4, 3
1, 2, 4, 3
1, 2, 3, 4

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Microprocessor
Which one of the following microprocessor has 16-bit data bus?

 8085
 Z-80
 68000
 6502

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

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

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Microprocessor
In a microprocessor based system the stack is always in

 EPROM
 ROM
 microprocessor
 RAM

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