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What are privileged instructions?
Some of the machine instructions that might cause harm to a system are designated as privileged instructions. The hardware permits the privileged instructions to be implemented only in monitor mode.
Q. Drawback of indirect addressing? • Drawback of this scheme is that it needs two memory references to fetch actual operand. First memory reference is to fetch the actual addr
Nyquist''s sampling theorem says "if you have a signal that is perfectly band limited to a bandwidth of f0 then you can collect all the information there is in that signal by sampl
What is Virtual memory The term virtual memory signifies something that appears to be present though actually it is not. Virtual memory technique enables users to use more mem
RST 4.5 is known as TRAP.
How can we decrement and increment operations We can implement decrement and increment operations by using a combinational circuit or binary down/up counters. In
Q. Illustrate the working of FLIP-FLOPS? A flip-flop is a binary cell that stores 1-bit of information. It itself is a sequential circuit. We know that flip-flop can change its
Write 8086 initialisation routine required to program 8255 for mode 1 with Port A and Port B as output Ports and Port C as an input port. Indicate all the relevant signals.
Q. Returns and Procedures definitions in 8086? 8086 microprocessor supports RET and CALL instructions for procedure call. CALL instruction not only branches to indicate address
Database marketing tool or application helps a user or marketing professional in determining the right tool or plan for his valuable add campaign. This tool haves data from all sou
Program 'preemption' is? Ans. Forced de allocation of the CPU from a program that is executing on the CPU is called preemption program.
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