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What is software interrupt?
A software interrupt is initiated by implementing an instruction. Software interrupt is a special call instruction that behaves like an interrupt rather than a subjective call. The most common use of software interrupt is associated with supervision call instruction. This instruction gives means for switching from a CPU user mode to the supervision mode. A software interrupt that steers the old CPU state and brings is new PSW that belongs to the supervisor mode
Explain the term- macro? A term macro is a set of instructions, which can be executed repeatedly. It is useful for automating certain routine tasks like printing reports etc. T
How the simulation is done Data is entered into the computer and simulation is run. The below scenarios may be tried out: - Timing of lights varied to see how traffic flow
The capacity of 2K × 16 PROM is to be expanded to 16 K × 16. Find the number of PROM chips required and the number of address lines in the expanded memory. Ans. Capacity requi
In a 10000 line exchange, 0000 to 2999 is allotted to x group of subscribers, out of which 40% are active during busy hour. The remaining numbers are domestic numbers out of which
Q. Speed Up - metrics for performance evaluation? Speed up is ratio of time needed to execute a given program employing a specific algorithm on a machine with single processor
The expansion of nested macro calls done by using of? Ans. LIFO rule is used for the expansion of nested macro calls.
iconic model problem
Clear operation The clear operation compares words present in A and B and produces an all 0's result if two numbers are equal. This operation is achieved by the exclusive-OR mi
Define emulation. Given a computer with a particular instruction set, it is possible to explain additional machine instructions and execute them with extra micro routines. Emul
A COCOMO model is :- COCOMO:- Constructive Cost Estimation Model.
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