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Microprocessor

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

 PSW
 B-C
 Stack Pointer
 D-E

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Microprocessor
The data bus of any microprocessor is always

 Either unidirectional or bi-directional
 Bi-directional
 Unidirectional
 None

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

 B-C
 PSW
 Stack Pointer
 D-E

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Microprocessor
The character set of Fortran 77 includes lower case alphabets a to z.

True
False

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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)

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

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