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

Instruction set and effective addressing techniques, The term addressing mo...

The term addressing mode is a technique of stating the input and output of an instruction; it is termed the effective address. There are 6 effective addresses in the 68HC11 set of

By which the speech of side tone is heard, Side tone is the speech heard by...

Side tone is the speech heard by (A)  the receiving subscriber (B)  both the receiving and calling subscriber (C) by on looker (D) by calling subscriber Ans

Why smtp used as transfer protocol for web pages, Can SMTP be used as trans...

Can SMTP be used as transfer protocol for Web pages? Why? SMTP is an easy mail transfer protocol. This uses ASCII text for all communications. SMTP needs reliable delivery- the

Cloud computing assignment, In the module on WSDL you were presented with t...

In the module on WSDL you were presented with the details of the WSDL service that receives a request for a stock market quote and returns the quote. The basic structure of a WSDL

What is mother board, What is mother board? Mother Board is a main syst...

What is mother board? Mother Board is a main system printed circuit board which having the processor. It will occupy an unacceptably large amount of space on the board.

What do you eman by processors hypercube, Q. What do you eman by Processors...

Q. What do you eman by Processors Hypercube? This is precise to in the hypercube. Every processor is portrayed by set of nodes of graph and different arcs are represented with

Reduced instruction set computer architecture, The goal of computer archite...

The goal of computer architects is to design computers that are cheaper and more powerful than their predecessors. A cheaper computer has: Low hardware manufacturing cost.

Read, i read in b.tech 3year.i can go to hadrabad becouse read of branch p...

i read in b.tech 3year.i can go to hadrabad becouse read of branch parer.why the best instituies in hadrabad in purpus gate and branch paper

Define arithmetic pipelines, Arithmetic Pipelines The technique of pipe...

Arithmetic Pipelines The technique of pipelining can be applied to various complex and low arithmetic operations to speed up processing time. Pipelines used for arithmetic calc

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