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Microprocessor

Microprocessor
The number of output pins in 8085 microprocessors are

 19.
 27.
 21.
 40.

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Microprocessor
Identify the non-maskable interrupt from the following

 RST 7.5
 RST 5.5
 RST 6.5
 RST 4.5

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Microprocessor
In 8085, the pins for SID and SOD are

3 and 4 respectively
4 and 3 respectively
4 and 5 respectively
5 and 4 respectively

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Microprocessor
SUB A instruction in 8085

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

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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

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

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Microprocessor
Inintel 8085A microprocessor ALE signal is made high to

 To disable data bus
 To latch data D0-D7 from data bus
 Enable the data bus to be used as low order address bus
 To achieve all the functions listed above

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