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Clarify the operation of IRET instruction. What memory locations comprise the vector for an INT 34 instruction?
Interrupt return (IRET) instruction is used only with hardware or software interrupt service procedures. Whenever an IRET instruction executes, it stores the contents of T and I from the stack. This is essential because it preserves the state of flag bits. If interrupts were enabled before an interrupt service procedure, they automatically re-enabled by IRET instruction as it restores the flag register.
Interrupt Number 20-FF are stored at an address 80 - 3FFH.
What do you mean by polynomial and exponential bounds? Bounds of the form nc for c greater than 0 .such a bound are known as polynomial bounds. Bounds of the form 2(n ) .suc
What is the function of a data element? A data element defines the role played by a domain in a technical context. A data element having of semantic information.
Which scheduler selects processes from secondary storage device? Ans. Medium term scheduler selects processes from secondary storage device.
Consider a network message transfer among a source S and a destination D by 3 routers R1, R2 and R3 as given below:- S -------- R1 --------- R2 --------- R3 ---
what is network operating system design issues
What techniques are used to increase the clock rate R? Ans: The 2 techniques used to increase the clock rate R are: 1. We can reduce the amount of processing done in one basi
Design a 4-bit comparator using combinational logic, and Karnaugh Maps. The inputs of the circuit are two 2-bit numbers. a) Construct the truth table given 2-bits inputs A and B, a
Design a BCD ripple counter
Design a 4 : 1 multiplexer with strobe input using NAND gates. Ans. Design of 4 : 1 multiplexer with strobe input using NAND gates.
What are the two ways of constructing a larger module to mount flash chips on a small card? The two ways are:- a) Flash cards b) Flash drivers.
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