Explain lexical substitution during macro expansion, Computer Engineering

Assignment Help:

Explain Lexical substitution during macro expansion ?

Lexical substitution is used to produce an assembly statement from a model statement. Model statements have 3 kinds of strings:

1. An ordinary string, that stands for itself.

2. The name of a formal parameter that is preceded via the character '&'.

3. The name of a preprocessor variable that is also preceded via the character '&'.

During lexical expansion, strings of kind 1 are retained without substitution. Strings of kinds 2 and 3 are replaced through the 'values' of preprocessor variables or the formal parameters. The value of a formal parameter is the consequent actual parameter string.


Related Discussions:- Explain lexical substitution during macro expansion

What are modes of operation of centralized spc, What are modes of operation...

What are modes of operation of centralized SPC? In about all the present day electronic switching systems utilizing centralized control, only a two-processor configuration is

Design a 3-bit counter using sequential logic, Q. Design a 3-bit counter us...

Q. Design a 3-bit counter using sequential logic with following counting sequence using JK- flip-flops which counts the sequence 0, 3, 2, 7, 5 and repeat.

What are the input for uml development, What are the Input for UML developm...

What are the Input for UML development UML is an attempt to standardize artefacts of analysis and design consisting of semantic models, diagrams and syntactic notations. The fi

Explain the application of e-commerce in home banking, Explain the applicat...

Explain the application of E-Commerce in Home Banking. Home Banking: E-commerce is employed in Home Banking like one call or one click. Internet banking or online bank

Users to run programs at same time, A computer system that allows multiple ...

A computer system that allows multiple users to run programs at similar time   Multi tasking system

What is an compiled languages, What is an compiled languages In compile...

What is an compiled languages In compiled languages the instructions into machine code and kept them  in a separate file for later implementation. Many modern compilers can com

Types of e-commerce , Types E-commerce generally based on advertising, sell...

Types E-commerce generally based on advertising, selling, marketing and buying, but due to the differences in needs, e-commerce has been classified according to the parties of the

Implication connective - modus ponens rule, Implication connective - Modus ...

Implication connective - Modus ponens rule: We notice that this is a trivial example, so it highlights how we use truth tables: as the first line is the only one when both abo

What is replacement algorithm, What is replacement algorithm? When the ...

What is replacement algorithm? When the cache is full and a memory word that is not in the cache is referenced, the cache control hardware must decide which block should be del

Explain Not recently used page replacement algorithm, Not Recently Used Pag...

Not Recently Used Page Replacement Algorithm The not recently used abbreviated as NRU page replacement algorithm works on the subsequent principle: while a page is referenced,

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd