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

Structure of 8086 cpu, 8086 microprocessor comprises two independent units:...

8086 microprocessor comprises two independent units:  1.  Bus Interface unit 2.  Execution unit Please refer to Figure below. Figure: The CPU of INTEL 8086 Microp

Basic characteristics of an experts system, An experts systems must perform...

An experts systems must perform well that is achieve the same levels of performance in the domain of interest that human experts can achieve. But simply producing good so

Calculating block size - computer architecture, Calculating Block Size: ...

Calculating Block Size: B A unit of associatively -one tag for B A words B T unit of transfer-B T words to/from primary memory as a unit             One valid bit for

The need of parallel computation, The Need Of Parallel Computation With...

The Need Of Parallel Computation With the advancement of computer science (CS), computational speed of the processors has also improved many a time. Moreover, there is certain

How to calculate the logic circuit outputs, How to Calculate the Logic Circ...

How to Calculate the Logic Circuit Outputs? Once the Boolean expression for a circuit output has been acquired, the output logic level can be determined for any set of input le

Determine the benefits of developing prototype, Determine the benefits of d...

Determine the benefits of developing prototype According to SOMM [96] benefits of developing prototype are as following:  1.  Communication gap between clients and software

Explain macros and macro processors, System Software 1. Explain MASM? E...

System Software 1. Explain MASM? Explain its features. 2. What is the significance of Lexical analysis and Syntax analysis? 3. Explain macros and macro processors? Explai

Importance of spectrum to the mobile sector, (a) The statement "Standards ...

(a) The statement "Standards create markets or markets create standards" has been the subject of considerable debate. Discuss the advantages and disadvantages to having multiple

Explain user datagram protocol, Explain User Datagram Protocol. UDP(Use...

Explain User Datagram Protocol. UDP(User Datagram Protocol) : User Datagram Protocol uses a connectionless communication paradigm. It is an application using UDP does not re

Give the sequence of procedure calls for server and client, Give the sequen...

Give the sequence of procedure calls for both server and client for connect ion-oriented application.   In connection oriented communication the order of Procedure call

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