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Microprocessor

Microprocessor
CALL instruction is a ______ instruction.

 1 bytes
 4 bytes
 3 bytes
 2 bytes

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Microprocessor
The characteristics of RESET OUT signal is/are

 this signal can be used to reset other devices.
 indicates that µp is being reset.
 the signal is synchronized to the processor clock.
 all.

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Microprocessor
If the sign bit of mantissa is 0 and the exponent is increased from a positive to a more negative number the result is

A negative floating point number
A larger floating point number
A smaller floating point number
Either A or B depending on the actual number

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Microprocessor
SUB A instruction in 8085

 sets zero and sign flags
 reset zero and parity flags
 sets zero and carry flags
 reset carry and sign flags

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

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

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Microprocessor
A 37 bit mantissa has an accuracy of

8 decimal places
6 decimal places
10 decimal places
11 decimal places

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