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Microprocessor

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

 8085
 Z-80
 68000
 6502

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Microprocessor
XCHG instruction exchanges the content of H-L with ______ register pair.

 D-E
 PSW
 Stack Pointer
 B-C

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

 B-C
 Stack Pointer
 D-E
 PSW

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Microprocessor
The processor status word of 8085 microprocessor has five flags namely:

 S, OV, AC, P, CY
 S, Z, AC, P, OV
 S, Z, OV, P, CY
 S, Z, AC, P, CY

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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?

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

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Microprocessor
The control flags in 8086 are:

All of these
 the interrupt flag(IF).
 the direction flag(DF).
 the Trap flag(TF).

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