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Lexical substitution during macro expansion
Lexical substitution is employed to produce an assembly statement from a model statement. A model statement contains 3 types of strings:
a. An ordinary string that stands for itself.
b. The name of a formal parameter that is preceded by the character '&'.
c. The name of a preprocessor variable that is as well preceded by the character '&'.
Throughout lexical expansion, strings of type 1 are retained with no substitution. Strings of sorts 2 and 3 are replaced by the 'values' of the formal parameters or preprocessor variables. The value of a formal parameter is the subsequent to the actual parameter string.
Briefly discuss on Bankers algorithm? The resource-allocation graph algorithm is not applicable to a resource-allocation system with multiple examples for each resource type.
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why we say OS is a resource allocator and control program
Problem: a) Explain physically what occurs when a disk is fragmented. What is the purpose of "defragmenting" a disk? b) What is the idea behind backing up data on a secondar
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Semispace works by maintaining two disjoint areas from which memory can be allocated. These areas are called the from-space and the to-space. At ?rst, the algorithm allocates memor
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Explain Components of conflict phase of dispatch latency The conflict phase of dispatch latency has two components 1. Preemption of any process running in the kernel. 2.
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