Microprocessor
In a vector interrupt

 the branch address is assigned to a fixed location in memory.
 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.
 none.

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Microprocessor
When RET instruction is executed by any subroutine then

 without any operation, the calling program would resume from instruction immediately following the call instruction and also the PC will be incremented after the execution of the instruction.
 the PC will be incremented after the execution of the instruction.
 the top of the stack will be popped out and assigned to the PC.
 without any operation, the calling program would resume from instruction immediately following the call instruction.

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Microprocessor
A good assembly language programmer should use general purpose registers rather than memory in maximum possible ways for data processing. This is because:

 Data processing with memory requires more instructions in the program than that with registers
 Data processing with registers is easier than with memory
 Of limited set of instructions for data processing with memory
 Data processing with registers takes fewer cycles than that with memory

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