Microprocessor
SUB A instruction in 8085

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

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Microprocessor
HLDA signal in 8085 performs the following operation:

 Indicates that another master is requesting the use of the address and data buses.
 Indicates that the CPU has received the HOLD request and that it will relinquish the bus in the next clock cycle.
 Indicates that the CPU has not received the HOLD request.
 Hold the data in the accumulator until the microprocessor is turned OFF.

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Microprocessor
Assertion (A): Negative values of incremental operator in DO loop are allowed in Fortran 77 but not in earlier versions of Fortran. Reason (R): Fortran 77 has better array facilities than earlier versions of Fortran.

Both A and R are correct and R is correct explanation of A
A is wrong R is correct
A is correct R is wrong
Both A and R are correct but R is not correct explanation of A

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