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Define the PUBLIC and EXTRN directives- Assembler directives
PUBLIC and EXTRN directives are very significant to modular programming. PUBLIC used to declare that labels of data, code, or entire segments are available to other program modules. EXTRN (external) declares that labels are external to modules. Without these statements, modules couldn't be linked together to create a program by using modular programming techniques. They may link, however one module wouldn't be able to communicate to another.
PUBLIC directive is placed in opcode field of an assembly language statement to define a label as public so that label can be used by other modules.
Q. Collective Communications? A number of message-passing systems allow communication involving more than two processors. Such type of communication can be known as collective
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What is program-controlled I/O? In program controlled I/O the processor repeatedly checks a status flags to achieve the needed synchronization among the processor and an input
Address translation with dynamic partition : Given figure shows the address translation process with dynamic partitioning, where the processor provides hardware support for
what are the featrures of doubly link list.??????/
An eight stage ripple counter uses a flip-flop with propagation delay of 75 nanoseconds. The pulse width of the strobe is 50ns. The frequency of the input signal which can be use
Used to interrupt CPU normal implementation routine and to get its attention .Mostly generated by an external devices, timers, counters...etc
Unlink() is a function for file system handling. It will easily delete the file in context. Unset() is a function for variable management. It will create a variable undefin
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