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Differentiate between protected and real modes of an Intel microprocessor
Operation of Real mode interrupt: When microprocessor completes executing the current instruction, it determines whether an interrupt is active by checking (1) instruction execution, (2) single -step (3) NMI (4) co-processor segment overrun (5) INTR and (6) INT instruction in the order presented. If one ormore of these interrupt conditions are present, following sequence of events takes place:
1. The contents of flag register are pushed onto the stack
2. Both the trap (TF) and interrupt (IF) flags are cleared. This disables INTR pin and trap or single-step feature.
3. Contents of the code segment register (CS) are pushed onto the stack.
4. Contents of the instruction pointer (IP) are pushed onto the stack.
5. The interrupt vector contents are fetched and then placed into both CS and IP so that next instruction executes at the interrupt service procedure addressed by the vector.
Tool that is used to transfer data/files among computers on the Internet TCP (Transfer control protocol)
Q. Explain about Hamming error correcting code? Richard Hamming at Bell Laboratories worked out this code. We will only introduce this code with help of an illustration for 4 b
Normal 0 false false false EN-US X-NONE X-NONE Figure: SIMD Organisation
Example of Bitwise-AND Operator In the following example, the bitwise-AND operator (&) compares the bits of two integers, nNumA and nNumB: // Example of the bitwise-AND oper
Analysis which determines the meaning of a statement once its grammatical structure becomes known is termed as? Ans. The meaning of a statement when its grammatical structure b
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