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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.
States the term IP addresses? IP address considers to the name of a computer onto a network, as the Internet. a. An Identifier for a device or computer onto a TCP/IP network
State 0 Source control is being dragged with the variety of a target. 1 Out of the variety of a target. 2 One position in the target to one another.
Determine the Object Design of Object oriented modelling Object Design: At this phase, a design model is created based on the analysis model which is already created in the
Paging supervisor: This part of the operating system built and manages the page tables. If the due to dynamic address translation hardware a page fault occurs exception then
As in PRAM there was not any direct communication medium between processors so a different model called as interconnection networks have been considered. In the interconnection net
what is meant by scan conversion?
Explain the Modularity of Object oriented analysis Modularity is closely attached to encapsulation; you may think of it as a way of mapping encapsulated abstractions into phys
Explain Anonymous FTP. Use of a login password and name helps maintain file secure from unauthorized access. Though, sometimes these authorizations can also be inconvenient.
What is Instruction Cycle The simplest model of instruction processing can be of two steps. The CPU reads /fetches instructions (codes) from memory one at a time and executes i
Q. Determine what part of global array to work on thread number? #include void subdomain(float x[ ], int istart, int ipoints) { int i; for (i = 0; i x[istart+
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