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Q. Explain about Instruction Register and Flags?
The Instruction Register: It comprises the operation code (opcode) and addressing mode bits of the instruction. It assists in determining the numerous cycles to be performed and hence determines related micro-operations that are required to be performed.
Flags: Flags are used by CU for determining the status of CPU and the results of a previous ALU operation. For illustration a zero flag if set conveys to control unit that for instruction ISZ (skip subsequent instruction if zero flag is set) the next instruction has to be skipped.
Define class NP. Problems that can be solved in polynomial time by a nondeterministic TM. Contains all problems in P and some problems possibly outside P.
What is sensitivity list? A list of signals which trigger execution of the block when they change value. Sensitivity list indicates that when a change occurs to any one of
Q. Rules for calling assembly subroutines from? The rules for calling assembly subroutines from C are: (i) Memory model: The calling program and called assembly programs sh
how it is calculated?
You presently work for an automotive parts supply store. Your company is growing, and is considering expansion. The company presently has three locations (North, South, and Central
What is MMU? MMU is the Memory Management Unit. It is a special memory control circuit used for executing the mapping of the virtual address space onto the physical memory.
how many pins does a floppy drive connector have
Which loader is executed when a system is first turned on or restarted? Ans. Bootstrap loader executed while a system is first turned on or restarted.
Information Technology is nothing but the study, design, development, execution, support and management of computer based information systems mainly the applications software & har
Post interrupts - computer architecture: Post interrupts Exact interrupts examine interrupt bit on entering WB Longer latency Handle immediately
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