Microprocessor
The first machine cycle of an instruction is always

 An I/O read cycle
 A fetch cycle
 A memory read cycle
 A memory write cycle

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Microprocessor
In 8085

P flag is reset when the result has odd parity
P flag is set when the result has odd parity
P flag is set when the result has even parity
P flag is reset when the result has even parity

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Microprocessor
In a vector interrupt

 the branch address is obtained from a register in the processor.
 the interrupting source supplies the branch information to the processor through an interrupt vector.
 the branch address is assigned to a fixed location in memory.
 none.

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